37results about How to "Excellent sensitivity characteristics" patented technology

The present invention provides a triphenylamine derivative having excellent solubilization of a solvent and capable of dissolving with binding resin and improving effectively light sensitivity when the triphenylamine derivative is used as a hole transport agent of electronic photographic photoreceptor, a method for manufacturing the triphenylamine derivative and an electronic photographic photoreceptor. The invention employs triphenylamine derivative represented by formula (1) and (6).

The present invention relates to a colored photosensitive resin composition comprising a colorant, a binder resin, a photopolymerizable compound, a photopolymerization initiator and a solvent, and provides a colored photosensitive resin composition for the preparation of a color filter of a solid-state image sensing device using 300 nm or less ultrashort wave exposure equipment, wherein the photopolymerization initiator comprises a compound reacting at 300 nm or less. A color filter having ultrafine colored patterns can be prepared by using the colored photosensitive resin composition. Therefore, the color filter can be usefully applied to a solid-state image sensing device.

An electrophotographic photoconductor having an excellent crack resistance and wear resistance as well as excellent sensitivity characteristics, while keeping good image characteristics of the photoconductor is provided. In addition, an image-forming apparatus equipped with such an electrophotographic photoconductor is also provided. The electrophotographic photoconductor includes a photosensitive layer containing at least a charge-generating agent, a hole-transfer agent, and a binder resin on a conductive substrate. The hole-transfer agent has a solubility of 5 to 35% by weight with respect to triglyceride oleate and the photosensitive layer contains a compound represented by the following general formula (1) as an additive:

The present invention provides a single layer type electrophotographic photoconductor which exhibits the small number of generated black spots in a formed image and exhibits the excellent sensitivity characteristic even when the photoconductor is used for a long time or a photoconductor drum is rotated at a high speed and an image display device which includes the single layer type electrophotographic photoconductor. In the single layer type electrophotographic photoconductor which includes a photoconductive layer containing a binding resin, a hole transporting agent and an charge generating agent, the photoconductor contains a water-repellant polycarbonate resin as the binding resin, and a contact angle of pure water (measured temperature: 25° C.) with respect to the photoconductive layer is set to 100° or more.

Provided are an electrophotographic photoconductor for wet developing excellent in solvent resistance having a photoconductor improved in not only solvent resistance but also charging characteristics even after long-term usage, and an image-forming apparatus equipped with such an electrophotographic photoconductor for wet developing. Therefore, an electrophotographic photoconductor for wet developing equipped with an organic photoconductor containing at least a binder resin, a charge-generating agent, a hole-transfer agent and an electron-transfer agent, where the amount of elution of the hole-transfer agent after 2,000-hour-immersion in paraffin solvent having a kinematic viscosity (25 DEG C, in accordance with ASTM D455) of 1.4 to 1.8 mm 2 / s is 0.040 g / m 2 or less or the amount of elution of the electron-transfer agent after 2,000-hour-immersion in paraffin solvent having a kinematic viscosity (25 DEG C, in accordance with ASTM D455) of 1.4 to 1.8 mm 2 / s is 0.12 g / m 2 or less.

A gyro sensor according to the invention includes a driving portion that includes a driving support portion connected to a driving spring portion and a detecting portion that includes a detecting support portion connected to the driving support portion with the detecting spring portion interposed. The driving support portion is configured to vibrate in a first axis (X-axis) direction, and the detecting support portion is configured to be displaced in a second axis (Y-axis) direction orthogonal to the first axis (x-axis). When the resonant frequency of the driving portion is f1, the resonant frequency of the detecting portion is f2, the width of the driving spring portion is w1, and the width of the detecting spring portion is w2, Expression (1) below is satisfied.0.87(f2 / f1)≦(w2 / w1)≦1.13(f2 / f1)  (1)(where, w1≠w2 and f1≠f2).

The present invention relates to a coloring light-sensitive resin composition, and a colorful optical filter and a liquid crystal display device manufactured by using the coloring light-sensitive resin composition. The coloring light-sensitive resin composition includes (A) a colorant, (B) an alkaline soluble resin, (C) a light polymerized compound, (D) a light polymerization initiator, (E) a solvent and (F) a fluorine series reactivity additive represented by a chemical formula 1. Furthermore, when being manufactured the colorful optical filter, the coloring light-sensitive resin composition is capable of keeping high contact angle and a low surface energy, and showing characteristics of non spot and good transparence after developing, such that the composition can be nicely adapted to the colorful optical filter and the liquid crystal display device. In the chemical formula 1, R1 is independently selected from ethylene, (iso)propone, butane, (poly)ethylene glycol and (poly)propone ethandiol, R2 is hydrogen or methyl, Rf is fluorine series polyatomic alcohol represented by a chemical formula 2; in the chemical formula 2, R3 is methano or (poly)ethylene glycol symmetrical to two sides of R4, R4 is carbon or CF2O-(CF2CF2O)a - (CF2O) b -OCF2, a and b are separately selected from integers which are more than 0 or 1, a sum of a and b is an integer from 1 to 20, R5 is independently selected from hydrogen, methyl, ethyl group, propyl, butyl or CD2-O-CH2-CPF2P+1, P is an integer from 1 to 10, n is an integer from 1 to 20.

The invention provides an electronic photographic photoreceptor with high sensitivity and an image forming apparatus. An light sensitive layer containing at lest an electron transport agent, an electronic charge generating agent and cementing resin is fixed on the conductive substate of the electronic photographic photoreceptor, wherein the electron transport agent comprises compounds representated by the general formula (1). In the general formula (1), R represents alkyl with with 1-6 carbon atoms having or not having substituent, alkoxyl with 1-6 carbon atoms having or not having substituent, aralkyl with 6-20 carbon atoms having or not having substituent, aryl with 6-20 carbon atoms having or not having substituent, heterocyclic radical with 1-20 carbon atoms having or not having substituent, and cycloalkyl with 3-10 carbon atoms having or not having substituent.

A composition that contains a compound represented by the formula (1) is dissolved in an organic compound, and the composition is purified by using a basic adsorbent that contains at least 15% by mass magnesium and has a volume average particle diameter of 10 μm to 500 μm, both inclusive. An undercoat-layer-forming coating liquid is prepared by removing the basic adsorbent and dispersing metal oxide particles in the obtained solution containing the purified form of the composition. An undercoat layer is formed by forming a coat of the undercoat-layer-forming coating liquid and drying the coat.

The present invention provides, at a low cost: an electrophotographic photoreceptor that has sufficient solvent resistance and crack resistance when used in a liquid development system and that also has superior electrical characteristics; a manufacturing method therefor; and an electrophotographic device. Provided is an electrophotographic photoreceptor including: an electroconductive substrate 1; and a charge generation layer 3 and a charge transport layer 4 sequentially provided on the electroconductive substrate. The charge transport layer contains, as a binder resin, a copolymerized polycarbonate resin having a structure represented by general formula (1) and contains, as a hole transport substance, a compound having a structure represented by general formula (2).

An electrophotographic photosensitive member includes a photosensitive layer containing a naphthalenediimide derivative represented by the following formula (1) or (2). In the formula (1) or (2), R 1 represents an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms and optionally having an alkyl group having 1 to 10 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, or an alkoxy group having 1 to 6 carbon atoms.

A thin film photoelectric conversion device for performing photoelectric conversion of a wide range of light, from the visible range to the infrared range, is provided. A plasmon resonance phenomenon, which enhances a photo-induced electric field, is caused in a wide range of light, by a metal nanostructure which is formed by annealing a substrate on which a first metal thin film layer composed of a first metal and a second metal thin film layer composed of a second metal which is partially overlapped onto the first metal thin film layer are laminated, and in which a periodic structure, wherein a number of first convex parts successively lie with a pitch of from one-tenth of a wavelength of an incident light to a wavelength equal to or shorter than the wavelength of the incident light in a planar direction along the substrate, is formed on the surface of the substrate; and a random structure, wherein a distance between any pair of a number of second convex parts formed at random positions on the substrate, or a distance between a second convex part and a first convex part is shorter than 100 nm, is formed on the substrate in a position within a region of the periodic structure or in a position adjacent to the region of the periodic structure, and as a result, high sensitivity photo-induced current is generated.