12results about "Golf balls" patented technology

Rubber compositions including sulfonamides, and golf ball cores made from such compositions are disclosed. The type and concentration of components in the composition affect the properties of cores made therefrom, including, for example, coefficient of restitution and compression, and, thus, can be used to produce golf balls having desirable performance characteristics.

A method for measuring physical properties, e.g., firmness, smoothness, trueness, green speed, of a playing surface on a golf course, includes performing measurements via a measurement apparatus. The measurement apparatus includes a spherical sensor, which in turn includes an accelerometer for measuring motion data relating to motion of the spherical sensor, a memory for storing the motion data, and a communication module for wirelessly transmitting the motion data to a computing device.

A method of optimizing golf club head and golf ball design is disclosed herein. The method includes inputting a RBF for stress, a RBF for CT and a RBF for ball speed into an Adaptive Simulated Annealing algorithm to generate an optimized structure for the club head for ball speed.

A golf ball can include a core, a mid layer, and a cover. An amount P(Na) of a sodium ion-neutralized ionomer resin in abase resin of the cover can be not greater than 5 parts by mass. The golf ball can satisfy the following mathematical formulas (1) and (2):Fm / (Hm*Tm)-Fc / (Hc*Tc)≥3.,and(1)Mc*Tc≥10.,(2)whereHm: hardness (Shore D) of the mid layer,Tm: thickness (mm) of the mid layer,Fm: bending stiffness (MPa) of the mid layer,Tc: thickness (mm) of the cover,Fc: bending stiffness (MPa) of the cover, andMc: melt flow rate (g / 10 min) of the cover at a temperature of 190° C. under a load of 2.16 Kg.

Various aspects of a dimple pattern for a golf ball are disclosed herein. In one aspect, the golf balls disclosed herein can include dimples having a plan shape that is defined by a roulette. In specific aspects, the golf balls disclosed herein can include dimples having a plan shape that is defined by an epitrochoid or a hypotrochoid.

A golf game apparatus includes a tee apparatus. The tee apparatus includes a cover plate having a marking for ball positioning, a base positioned below the cover plate, a frame positioned below and supporting the base, an electromagnet mounted to the base to generate a magnetic field for an electrified golf ball, and circuitry housed in the frame and configured to supply electrical signals to the electromagnet for generating the magnetic field.

The present invention provides a golf ball including a plurality of dimples and a land portion surrounded by the plurality of dimples. The land portion includes a large number of land portion pieces. One land portion piece has a shape having at least three vertexes. The land portion includes a land portion piece having a specific shape formed by connecting the land portion piece substantially in point contact with another adjacent land portion piece at each of the vertexes. Further, an outer peripheral edge of the land portion piece having the specific shape includes a plurality of edge elements. A ratio of the number of land portion pieces having a unique shape in which all the edge elements are formed with a predetermined curve is adjusted to a predetermined range of the number of all the land portion pieces constituting the land portion.

Golf balls including one or more layers having at least one radar detectable mark disposed on the surface thereof are provided.

In a multi-piece solid golf ball having a core, an intermediate layer encasing the core and a cover which encases the intermediate layer and has numerous dimples on an outside surface thereof, the intermediate layer is formed of a resin material comprising an ionomer resin as a base resin and an inorganic granular filler, the cover is formed of a urethane resin material, the core has a diameter of at least 38.0 mm, the core has specific deflection, the sphere obtained by encasing the core with the intermediate layer (intermediate layer-encased sphere) has a surface hardness on the Shore D hardness scale of at least 69, the ball has a surface hardness on the Shore D hardness scale of 62 or less, and the (intermediate layer thickness) / (core diameter) value is from 0.025 to 0.043, the (cover thickness) / (core diameter) value is from 0.014 to 0.027.

A golf ball has a first hemisphere and a second hemisphere and a plurality of dimples arranged in a pattern divided into dimple segments separated by n longitudinal lines. Within each hemisphere, the plurality of dimples consists of shared dimples that are intersected by the longitudinal lines and segment dimples that are each wholly within one of the n number of dimple segments. The arrangement of the shared dimples on each of the longitudinal lines is identical. The n number of dimple segments comprise at least two segments, S1 and S2, in each hemisphere that have a different longitudinal angle from each other. The S1 segment has a first value for a segment parameter and the S2 segment has a second value for the segment parameter. The first value is different than the second value.

The aim is to provide a golf ball with a novel surface that can increase flight distance by improving aerodynamic performance through dimples compared to conventional balls. [Solution] The present invention provides a golf ball comprising a plurality of dimples and a land area surrounded by the plurality of dimples, wherein the land area is composed of a plurality of land area pieces, one land area piece having a shape having at least three vertices, and including a land area piece of a specific shape in which the land area piece is substantially point-contacting and connected to another adjacent land area piece at the vertices, and the outer edge of the land area piece of the specific shape is composed of a plurality of edge elements, and the proportion of the number of land area pieces of a unique shape in which all of the edge elements are formed by a predetermined curve is adjusted to a predetermined range of the total number of land area pieces constituting the land area.

In a golf ball having a core and a cover of one or more layer, the core is a product molded under heat from a rubber composition which includes (a) a base rubber, (b) a co-crosslinking agent which is an α,β-unsaturated carboxylic acid and / or a metal salt thereof, (c) an organic peroxide, and (d) water, wherein the content of component (d) is set within a specific range and components (b) and (c) are included in relative amounts that satisfy a specific condition. The core has a specific compressive deformation and a specific hardness difference between the center and surface thereof. Owing to the large hardness difference in the internal hardness profile of the core, the ball exhibits low spin characteristics when hit, improving the flight performance, yet retains a good durability to impact.