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308results about "Ball-point pens" patented technology
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Oil-based ink composition for writing instrument and writing instrument using the same
To provide an oil-based ink composition for a writing instrument which improves writing performance by suppressing color development, blurring of handwriting and excessive ink adhesion while obtaining dissolution stability of a dye in an ink and to provide a writing instrument using the same.SOLUTION: There is provided an oil-based ink composition for a writing instrument comprising a salt-forming dye including a polymethine basic dye and an organic solvent.SELECTED DRAWING: None
Owner:PILOT PEN CO LTD
Writing utensil with opposing magnets
ActiveUS12420579B1Electromagnets without armaturesBall-point pensMechanical engineeringQuantum mechanics
A writing utensil such as a pen having multiple magnetic members along its barrel. The magnetic members have opposite polarity so as to drive each other away. One of the magnetic members may be bonded to the barrel while the other extends around it to form a ring with an inner circumference large to allow it to move along the barrel between the bonded magnetic member and a capturing mechanism at a top end of the barrel. The capturing mechanism may have a metal member to retain the floating magnetic member for temporary storage.
Owner:AE CREATIVE CONCEPTS CO LTD
Pen tip support structure for multi-core writing instrument, ballpoint pen, stylus, and grip angle positioning method
PendingJP2026062836AInput/output for user-computer interactionErasing devicesHand heldStructural engineering
Owner:丸山 伸孝
Ballpoint pen capable of preventing ink leakage
The utility model discloses an ink leakage prevention ballpoint pen, which comprises a pen container, a pen refill and an attaching mechanism, the pen refill is arranged in the pen container through a telescopic locking mechanism in an up-and-down sliding manner, the attaching mechanism is arranged in the pen container and is positioned at a pen point of the pen refill, and when the pen point retracts into the pen container, the attaching mechanism is circumferentially attached to the pen point. The pen point is sealed under the action of the attaching mechanism, so that when ink leaks from the pen point, the attaching mechanism can lock the ink in the attaching mechanism, and the risk that the ink leaks to pollute a pen container and even leaks to the outside to pollute a writing case and a schoolbag is reduced.
Owner:HANGZHOU JINMA STATIONERY GIFTS CO LTD
Reversible thermochromic ink composition for writing implements and writing implement containing the same
To provide a reversible thermochromic ink composition excellent in durability and dispersion stability in an ink composition and capable of forming an excellent hand writing by highly combining a practical hand writing density and ink dischargeability, and a writing instrument housing the same.SOLUTION: An ink composition comprises a reversible thermochromic microcapsule pigment and a vehicle characterized in that microcapsules are obtained by enclosing a reversible thermochromic composition with a coating, wherein a volume-based average particle diameter (X) of the microcapsules is 0.1 to 3.0 μm, and an average cut sectional film thickness (Y) obtained from the following formula: cut sectional film thickness=(sectional outer periphery diameter-sectional inner periphery diameter) / 2 (in the formula, the sectional outer periphery diameter and the sectional inner periphery diameter are calculated, about one microcapsule, from a circle converted diameter of an area of a region surrounded by the outer periphery of the film cross-section and an area of the region surrounded by an inner periphery of the film cross-section) is 0.02 to 1.0 μm.SELECTED DRAWING: Figure 2
Owner:PILOT PEN CO LTD +1
Ballpoint pen refill and oil-based ballpoint pen
To provide an oil-based ink composition for a ball-point pen capable of obtaining good handwriting with good writing feeling even in writing at a high speed or at a high writing pressure while effectively suppressing ink leakage, and hardly causing strike-through, and to provide a ball-point pen.SOLUTION: A ballpoint pen refill for an oil-based ballpoint pen includes an ink reservoir tube, an oil-based ink composition filled in the ink reservoir tube, and a ballpoint pen tip attached to a front end portion of the ink reservoir tube and configured to supply the oil-based ink composition, wherein the oil-based ink composition contains a first phosphoric acid ester which is a polyoxyethylene hydrocarbon phosphoric acid ester having a hydrocarbon group having 4 or more and 17 or less carbon atoms, a second phosphoric acid ester which is a polyoxyethylene hydrocarbon phosphoric acid ester having a hydrocarbon group having 18 or more and 24 or less carbon atoms, water, and a nonionic surfactant.SELECTED DRAWING: Figure 1
Owner:PENTEL KK
Wear-resistant ball-point pen structure
ActiveCN224117009UReduce the habit of biting the pen tipimprove protectionBall-point pensWriting unitsMechanical engineering
The utility model discloses a wear-resistant ballpoint pen structure, which comprises a lower pen shell, the upper end face of the upper pen shell is in threaded connection with the upper end face of the lower pen shell, and the interior of the upper pen shell and the interior of the lower pen shell are coaxial; the staggered shell and the upper pen shell are staggered, and the upper pen shell and the staggered shell are integrally formed; the lower end of the refill penetrates through the dislocation shell, the upper pen shell and the lower pen shell and then is arranged below the lower pen shell; the telescopic piece is arranged on the upper end face of the refill and makes contact with the upper end face of the refill, the lower end of the telescopic piece is arranged in the dislocation shell, and the upper end of the telescopic piece is arranged above the dislocation shell; the upper end of the telescopic piece is sleeved with the pressing head, the pressing head is arranged above the dislocation shell, and the inner side face of the pressing head is connected with the telescopic piece in a clamped mode; the spring is arranged in the lower pen shell, the spring surrounds the periphery of the lower portion of the pen refill, and the spring is connected with the pen refill in a clamped mode; the first rubber sleeve sleeves the pressing head and is fixedly connected with the outer side face of the pressing head. The beneficial effect of the utility model is that: can help the user reduce the wrong method of use.
Owner:HANGZHOU QIANYAN STATIONERY CO LTD
A press pen
The present invention provides a press pen, comprising a pen case, a pen core, and an automatic rebound assembly for driving the pen core to extend or automatically retract into the pen case, wherein the pen case comprises a nib shell and a body shell; the pen core comprises a writing portion and an extension portion that are interconnected and coaxially arranged, the nib shell being provided with an inlet and outlet for the writing portion and a guide channel for the extension portion to slide back and forth, the outer wall of the extension portion being in contact with or close to the inner wall of the guide channel; the extension portion never separates from the guide channel in the front-to-back direction to prevent the writing portion from contacting the inlet and outlet. The pen core of the present invention will not be significantly deflected during the process of entering and exiting the nib shell, thereby avoiding the problem of pen ink in the writing portion soiling the inlet and outlet of the nib shell, ensuring the cleanliness of the product and avoiding soiling of stored items. The pen core is not prone to shaking, thus truly solving the problem of poor concentricity during the entry and exit process of the pen core; the provision of an automatic rebound structure can further prevent dirt from contaminating stored items.
Owner:宁波海雯文具有限公司
Writing instrument
Provided is a writing instrument comprising a cylindrical first tubular member, a cylindrical second tubular member inserted inside the first tubular member from one end part of the first tubular member, the second tubular member provided at its side surface with an elastically deformable part able to elastically deform to the outside and to the inside in the radial direction, and a cylindrical or columnar inside member inserted inside the second tubular member from one end part of the second tubular member, an outside surface of the elastically deformable part or an inside surface of the first tubular member having a first fitting part, an inside surface of the elastically deformable part having a second fitting part. The first fitting part is configured to make the elastically deformable part deform to the inside in the radial direction if the second tubular member is inserted into the first tubular member. The second fitting part is configured to make the elastically deformable part deform to the outside in the radial direction if the inside member is inserted inside the second tubular member in a state before the second tubular member is inserted inside the first tubular member, the deformed elastically deformable part returning after insertion of the inside member.
Owner:MITSUBISHI PENCIL CO LTD
Writing instrument
A writing tip assembly for dispensing a free-flowing low-viscosity ink from a writing instrument may include a micro-spring, a writing ball configured to transfer ink to a substrate, and a second ball between the writing ball and the micro-spring. The second ball is configured to transfer ink to the writing ball. A writing instrument for dispensing a free-flowing low-viscosity ink includes an ink reservoir, the writing tip assembly, and a feeder fluidically coupling the ink reservoir to the writing tip assembly.
Owner:SANFORD LP
Liquid storage member for applicator
To provide a liquid storage member for an applicator capable of restricting a liquid spill of an ink follower or a scattering into the ink due to a reversal phenomenon by enhancing performance of the ink follower and improving a degree of adhesion or friction resistance with an interior wall of a liquid storage tube using a paper base material.SOLUTION: A liquid storage member for an applicator comprises: a liquid storage tube using a paper base material; and an ink follower filled in the liquid storage tube, having a phase angle at shearing strain amplitude of 0-30% at 25°C, 1 Hz equal to or less than 50°, and having an oil separation degree when left for 24 hours at 60°C equal to or less than 5%.SELECTED DRAWING: None
Owner:MITSUBISHI PENCIL CO LTD
Water-based ink composition for ballpoint pen and ballpoint pen containing the same
To provide a water-based ink composition for a ballpoint pen, which is excellent in dry-up resistance and can form clear handwriting, and to provide a ballpoint pen containing the ink composition.SOLUTION: An aqueous ink composition for a ballpoint pen, comprising: a colorant; an alkyl polyglucoside having a C8 to C14 aliphatic-hydrocarbon group; a shear-thinning agent; and water. The colorant contains a reversible thermochromic microcapsule pigment containing a reversible thermochromic composition comprising at least (a) an electron-donating color-developing organic compound, (b) an electron-accepting compound, and (c) a reaction medium for determining the temperature at which the color development reaction of the components (a) and (b) occurs.SELECTED DRAWING: None
Owner:PILOT PEN CO LTD
Writing tool
An axial cylinder extending in an axial direction along a center axis and a writing member disposed inside the axial cylinder. The axial cylinder has fiber-like protrusions protruding toward an outside in a radial direction from an outer circumferential surface of the axial cylinder, the plurality of fiber-like protrusions are provided side by side on the outer circumferential surface, and each of the fiber-like protrusions has a plurality of rib parts which extend in predetermined directions when viewed from the outside in the radial direction and which are disposed side by side in a width direction orthogonal to the predetermined directions and a step part which is disposed between rib parts adjacent to each other in the width direction or disposed at an end portion in the width direction of the rib parts and extends in a predetermined direction.
Owner:PILOT PEN CO LTD
Reversible thermochromic composition and reversible thermochromic microcapsule pigments containing the same
ActiveCN116113548BGood light fastnessincrease concentrationDuplicating/marking methodsInksElectron transfer reactionsPhotopigment
The present invention provides a reversible thermochromic composition which exhibits black color upon coloration and colorless color upon discoloration, and has excellent light resistance, by using a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The means for solving the problem is a reversible thermochromic composition comprising: (a) a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, (b) a compound having a specific structure as an electron-accepting compound, and (c) a reaction medium which allows the electron transfer reaction between the (a) component and the (b) component to occur reversibly in a specific temperature range, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition.
Owner:THE PILOT INK CO LTD +1
Writing instruments
Owner:SOCIETE BIC SA
Novel front positioning refill
ActiveCN223778083UBall-point pensNib holdersMechanical engineeringElectrical and Electronics engineering
The utility model relates to the technical field of stationery, and particularly discloses a novel front positioning refill which comprises a pen point used for writing and an oil pipe used for storing ink, the outer side of the oil pipe is sleeved with a pen holder, one end of the pen holder is a fixing part, an inner hole is formed in the fixing part, and the pen point comprises a metal pen point and a connecting piece. The end, close to the pen point, of the connecting piece is a head portion, the end, away from the pen point, of the connecting piece is a tail portion, the head portion is provided with a groove allowing the metal pen point to be embedded, the tail portion is provided with a through hole allowing ink to enter, the through hole is communicated with the groove, an annular groove is formed between the head portion of the connecting piece and the top wall of the ink pipe, and the annular groove is used for being clamped with the fixing portion. The novel front positioning refill has the advantages of being convenient to assemble and low in cost.
Owner:WENZHOU MEIDE STATIONERY CO LTD
Water-based ink composition for writing implements and writing implements
To provide: an aqueous ink composition for a writing instrument which forms a uniform coating with low gloss and has superior abrasion resistance and water-resistant adhesion even when used to write on a non-absorbent surface; and a writing instrument.SOLUTION: An aqueous ink composition for a writing instrument comprises at least: a color material; a neutralized isobutylene / maleic anhydride copolymer; a water-soluble resin and / or resin emulsion; and water. The acid value of resin in the water-soluble resin and / or resin emulsion is 240 or less.SELECTED DRAWING: None
Owner:MITSUBISHI PENCIL CO LTD
Ink container, writing instrument, and method for manufacturing an ink container
The present invention provides an ink reservoir capable of suppressing deterioration of the ink contained within it. It also provides a writing instrument having such an ink reservoir, and a method for manufacturing the ink reservoir. [Solution] An ink container having an internal space for containing ink, comprising a resin container body with one or both ends open, and an inorganic barrier layer provided on the surface of the container body, wherein the barrier layer comprises an inner barrier layer provided on the inner surface of the container body and an outer barrier layer provided on the outer surface of the container body, and the thickness of the barrier layer is 1 nm or more and 300 nm or less.
Owner:PILOT PEN CO LTD
Connection structure and pen implement
Owner:HANVON UGEE TECH CO LTD
Writing instrument part, method for manufacturing writing instrument part, and writing instrument
A writing instrument part that improves the releasability of a core pin is provided. In a writing instrument part by the insert molding method in which a wooden barrel material made of natural wood flour and a water-soluble resin binder is injected into a mold, the wooden barrel material and a core pin having a paper straw inserted therein are integrated, and a two-layer structure having a paper straw layer as an inner layer and a wooden barrel layer as an outer layer is formed.
Owner:MITSUBISHI PENCIL CO LTD
Water-based ballpoint
To provide a water-based ball-point pen which suppresses the wear of a ball seat by improving lubricity between a ball and the ball seat of a ball-point pen tip to make the rotation of the ball smooth, is excellent in pigment dispersibility, and makes deep and clear handwriting.SOLUTION: The present invention relates to a water-based ballpoint pen including a container cylinder containing an ink composition for a water-based ballpoint pen, and a ballpoint pen tip at a tip of the container cylinder, wherein the ink composition for a water-based ballpoint pen contains water, pigments, a styrene-acrylic resin, and a polyethylene glycol-based surface active agent, the pigments are carbon black having an oil absorption of 50 to 300ml ( / 100g), and the ball surface has an arithmetic average roughness (Ra) of 0.1 to 5nm. It is assumed that: SELECTED DRAWING: None
Owner:PILOT PEN CO LTD
Mounting structure for writing implement and writing implement
An attachment structure in a writing tool provided with a first component and a second component inserted into an insertion hole provided at an end of the first component. The second component is provided with a small-diameter part, a large-diameter part provided in front of the small-diameter part, and a first outer step part provided between the small-diameter part and the large-diameter part. The insertion hole is provided with a small-diameter hole part and an inner step part provided in front of the small-diameter hole part. The small-diameter part is inserted or loosely inserted into the small-diameter hole part. The first outer step part contacts the inner step part. The small-diameter hole part is provided with a barb part protruding from an inner surface of the small-diameter hole part. The barb part is deformable when contacting the small-diameter part during insertion of the second component.
Owner:PILOT PEN CO LTD
Refills and writing instruments
To provide a refill capable of suppressing DC phenomena at a high level, and a writing instrument equipped with said refill. [Solution] A filter having an average pore size within a specific range is placed in the refill, and an ink composition having a viscosity within a specific range is filled in. Specifically, the refill, which is attached to a writing instrument, comprises at least a tip and a cylindrical ink container connected to the tip, wherein the tip and the ink container are filled with an ink composition, the ink container includes a filter made of a porous material that flows through the ink composition and is positioned perpendicular to the direction in which the ink composition follows, the filter has an average pore size of 0.01 μm to 9 μm as measured by the half-dry method, and the ink composition has a shear rate of 380 sec. -1 The refill has a viscosity of 5 to 90 mPa·s.
Owner:MITSUBISHI PENCIL CO LTD
Opaque ink formulations and related writing instruments
The name of the invention is opaque ink formulations and related writing instruments. Provided herein is a high opacity persistent ink formulation comprising a solvent, a polymer-based opacifier, a colorant, a resin, and a humectant, where the ink formulation exhibits a viscosity of less than about 50 cP.
Owner:SANFORD LP
One-key uncovering type convenient gel pen
Owner:HANGZHOU QIANYAN STATIONERY CO LTD
Water-based pigment ink composition for writing instruments
To provide a water-based pigment ink composition for writing instruments that can form good writing marks even after let stand in a subzero temperature environment at about -5°C for 3 months or longer.SOLUTION: A water-based pigment ink composition for writing instruments has a pigment, an amino acid anionic surfactant composed of an unsaturated fatty acid, an amino acid anionic surfactant composed of a saturated fatty acid, and water.SELECTED DRAWING: Figure 1
Owner:PENTEL KK
Modified tail plug oil anti-ink-vibration gel pen
The utility model discloses a modified tail plug oil anti-ink vibration gel pen which comprises a gel pen body, the gel pen body comprises a refill, a penholder, a pen cap and a rear end cover, the penholder is fixedly connected with the rear end cover, ink and tail plug oil are arranged in the refill, and the tail plug oil is arranged at the rear end of the ink. The tail plug oil is composed of base oil, a thickening agent, a plasticizer, a stabilizer and an antibacterial mildew preventive, a baffle is arranged in the rear end cover, one end of the baffle is connected with the screw rod, a threaded hole is formed in the rear end cover, and the threaded hole is in threaded connection with the screw rod. According to the invention, polyether polyol is added as a plasticizer, and a broad-spectrum antibacterial agent is added as an antibacterial mildew inhibitor, so that the flowability and flexibility of the tail plug oil can be improved, the sealing performance of the tail plug oil can be improved, and a certain pressure is directly applied to a refill by arranging a baffle plate, so that the position of the refill is further fixed; and the pen core is kept stable in the writing process.
Owner:TONGLU MAKER STATIONERY CO LTD
Elastic writing pen
The application discloses a flexible writing pen, which comprises a pen core and a pen shell, the pen core comprises an ink outlet core, an ink storage tube and a connecting seat, the pen shell comprises a pen barrel and a supporting seat, a containing cavity is formed between the pen barrel and the supporting seat, the pen core is arranged in the containing cavity, the connecting seat comprises a supporting column, the supporting column comprises a plurality of column bodies which are connected in an axial direction, according to the different wall thickness, the plurality of column bodies can be divided into at least two parts, the wall thickness of one part of the column bodies is larger than that of the other part of the column bodies, the column bodies which are adjacent in the axial direction are connected through a plate, a plurality of plates which are located between the adjacent column bodies are arranged in an interval along the axial direction of the supporting column, the ink outlet core is arranged on the supporting column and is connected with the ink storage tube through an inner hole of the supporting column, the front end of the supporting seat comprises at least two elastic claw arms, and all the elastic claw arms are arranged in an interval along the circumferential direction of the pen and around the connecting seat. The flexible writing pen can improve the elastic deformation effect of the front end of the pen core.
Owner:WENZHOU TIANJIAO PEN IND
Novel ball-point pen capable of elastically locking and quickly replacing refill
The utility model relates to the technical field of ballpoint pens, in particular to a novel elastic locking ballpoint pen capable of quickly replacing a refill, which comprises a pen tube body, a mounting hole is arranged at the top end of the pen tube body, the refill is arranged on the mounting hole, a threaded groove is arranged on the outer ring of the top end of the pen tube body, and a threaded ring is arranged on the threaded groove. A fastening groove is formed in one side of the threaded ring, an inclined plate is arranged on the fastening groove, an elastic supporting mechanism is arranged between one side of the threaded ring and the inclined plate, the elastic supporting mechanism comprises a fixing box, the fixing box is installed on one side of the threaded ring, a fixing groove is formed between the interior of the fixing box and the fastening groove, and the fixing groove is connected with the threaded ring. The structure has the advantage that the refills can be rapidly replaced, meanwhile, the structure can be suitable for assembling and fixing the refills with different lengths and sizes by rotating the threaded ring, and the applicability is improved.
Owner:NINGBO WUYUN PEN MFG