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JP7299318B2 |
The present invention relates to a coating composition for a golf ball cover, and more specifically, to a matte coating composition into which is mixed a synthetic fatty acid resin derived from dehydrated castor oil. According to the pre...
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JP7298118B2 |
A golf ball has a plurality of dimples on a surface thereof. Each dimple has a center portion and an edge portion. The center portion has a bowl shape. The edge portion has a ring shape and is smoothly continuous with the center portion....
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JP7298140B2 |
A golf ball for amateur golfers is endowed with an excellent flight when hit by the average golfer whose head speed is not that high and also has a good feel at impact that is soft and solid on full shots with all golf club numbers. The ...
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JP7296184B2 |
To provide a manufacturing method of a rubber product provided with predetermined hardness and predetermined gamma ray dose, by using radium ore powder of 200 to 1000 Becquerel per gram as a crosslinking agent.A manufacturing method of a...
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JP7294894B2 |
A golf ball according to the present invention includes: a module including an electronic circuit and its power source; a protective layer that surrounds an outer periphery of the module and is formed from a material having a Shore D har...
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JP2023084328A |
To provide a golf ball which is easily manufactured, suppresses resilience, and can obtain excellent feeling.A golf ball includes a spherical core and at least one layer of a cover for covering the spherical core. The spherical core is f...
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JP2023083659A |
To provide a golf ball with a core and a cover that includes: a plurality of grooves or holes at a surface of the core made of a polybutadiene rubber; and a polybutadiene rubber having a composition different from the polybutadiene rubbe...
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JP7290189B2 |
To provide a golf ball excellent in spin performance in a shot with a long iron.A golf ball has a plurality of dimples 12 and a land 14 on a surface thereof. The golf ball further has a large number of minute projections 18 formed on sur...
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JP2023078501A |
To provide a golf ball that achieves a satisfactory distance on full shots with an iron, is superior in the short game, and has a good feel at impact and a good durability.The golf ball comprises a core, an envelope layer, an intermediat...
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JP7286935B2 |
An object of the present invention is to provide a golf ball having excellent shot feeling on driver shots. The present invention provides a golf ball comprising a core and at least one cover covering the core, wherein a material for for...
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JP7288075B2 |
The present application relates to a mark ball special for a golf high-speed camera sensor, comprising a sphere, wherein a mark portion is provided on a surface of the sphere, the mark portion comprises a plurality of marks that are arra...
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JP2023075062A |
To provide a golf ball which is constituted by providing an intermediate layer between a core and a cover layer, in which the cover layer is formed of a resin material having polyurethane or polyurea as a main component, a value of light...
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JP7283195B2 |
A golf ball includes a core, a mid layer, and a cover. A ratio R1 calculated by mathematical formula (1): R1=(Df1−Df2)/(Df2−Df3) is not less than 5.00. A ratio R2 calculated by mathematical formula (2): R2=(T2*H2)/H3 is not less than...
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JP7283196B2 |
A golf ball includes a core, a mid layer, and a cover. A ratio R1 calculated by mathematical formula (1): R1=(Df1−Df2)/(Df2−Df3) is not less than 5.00. A ratio R2 calculated by mathematical formula (2): R2=(T2*H2)/H3 is not less than...
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JP7279500B2 |
In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer and a cover, the envelope layer is formed into two layers—an inner envelope layer and an outer envelope layer. The inner envelope layer-encased sp...
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JP7275857B2 |
The invention provides a golf ball resin composition that includes (A) an aromatic vinyl elastomer and (B) a polyurethane or a polyurea, the amount of component (A) being 50 parts by weight or less per 100 parts by weight of component (B...
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JP7275634B2 |
A golf ball has a plurality of minute projections 20 on a surface thereof. An average value Hav of heights H of these minute projections 20 is not less than 0.5 μm and not greater than 50 μm. The surface of the golf ball has one or mor...
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JP2023066481A |
To provide a golf ball for a professional or person with advanced skills, the golf ball being excellent in a carry in full shot time by a driver (W#1) and middle iron shot, and having high level control properties in short games.There is...
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JP7269598B2 |
To provide a hardball baseball ball that enables the control of the number of rolls of the hardball baseball ball to be acquired with ease.A hardball baseball ball 1 comprises a central part 2, an intermediate part 3 for covering the cen...
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JP7268294B2 |
In a resin composition for golf balls that includes, as a primary ingredient, a polyurethane or polyurea, letting P1 be the absorbance peak height near a wave number of 697 cm−1 and P2 be the absorbance peak height near a wave number o...
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JP7267658B1 |
A ball-shaped playground equipment that can be gripped by a user's finger pads, or gripped by a user's fingertips by digging into the fingertips, and that rolls moderately when thrown on a floor or the like. offer. A ball-shaped playgrou...
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JP7265520B2 |
The present invention is a modified resin for a molded article obtained by modifying an ionomer of an ethylene/unsaturated carboxylic acid copolymer with at least one guanidine compound selected from guanidine derivatives and salts thereof.
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JP7265521B2 |
The present invention is a modified resin for a molded article obtained by modifying an ethylene/unsaturated carboxylic acid copolymer with guanidine carbonate, wherein a melt flow rate of the ethylene/unsaturated carboxylic acid copolym...
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JP7263748B2 |
A golf ball resin composition includes (a) an olefin-α,β-unsaturated carboxylic acid copolymer and/or a metal ion neutralization product thereof or an olefin-α,β-unsaturated carboxylic acid-α,β-unsaturated carboxylic acid ester cop...
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JP7263749B2 |
In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer and a cover, the core is formed primarily of a base rubber, the envelope layer, intermediate layer and cover are each formed of a resin material, an...
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JP2023058258A |
To provide a rubber composition from which a crosslinked rubber molded product having good softness and excellent resilience performance can be obtained.The present disclosure provides a rubber composition containing (a) a base rubber, (...
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JP7263761B2 |
In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer and a cover, the intermediate layer is formed into two layers—an inner layer and an outer layer. The surface hardness of the envelope layer-encase...
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JP2023054391A |
To provide a multi-piece solid golf ball which is a distance-type golf ball, focusing on extending the distance, and can achieve a superior distance on full shots with a driver (W#1) and with irons.In a multi-piece solid golf ball having...
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JP2023054502A |
In a golf ball having a rubber core of at least one layer and a cover of at least one layer encasing the core, at least one layer of the cover is formed from a resin composition that includes (I) a polyurethane or a polyurea and (II) a (...
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JP7255139B2 |
An object of the present invention is to provide a golf ball having excellent approach spin performance under a dry condition and excellent approach spin performance under a condition that there is grass between the golf ball and the clu...
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JP7255097B2 |
A rubber composition for golf balls 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, (d) water or an alcohol, and (e) an antioxida...
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JP7255391B2 |
In a golf ball having a core of at least one layer and a cover of one or more layer encasing the core, at least one layer of the cover is formed of a resin composition that includes (I) a polyurethane or a polyurea and (II) an aromatic v...
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JP7255138B2 |
An object of the present invention is to provide a golf ball having excellent approach spin performance under a dry condition and excellent approach spin performance under a condition that there is grass between the golf ball and the clu...
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JP2023045218A |
To provide a golf ball having excellent durability and flight distance and also having a good shot feeling for an average golfer who hits a golf ball at a slow head speed.The present disclosure provides a golf ball comprising a spherical...
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JP2023045219A |
To provide a golf ball having excellent durability and flight distance and also having a good shot feeling for a golfer who hits a golf ball at a high head speed.The present disclosure provides a golf ball comprising a spherical core and...
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JP2023042113A |
To provide a golf ball that has a dominant flight distance performance in the iron full shot, has a high spin performance in the short game, and gives a very soft hitting feeling and is superior in breakage durability in the repetitive h...
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JP7238382B2 |
A golf ball according to an aspect of the present invention is a golf ball having a large number of dimples, a surface of the golf ball is covered with a plurality of virtual flat surfaces each having a triangular shape, one or more dimp...
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JP2023033055A |
To provide a rubber composition from which a molded product crosslinked in a short time and having high hardness can be obtained.The present disclosure provides a rubber composition containing (a) a base rubber, (b) a co-crosslinking age...
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JP2023031970A |
To provide a golf ball compatibly achieving flight performance and durability for repetitive hitting at a high level as the golf ball for professionals and the experienced.A golf ball is formed by interposing at least one intermediate la...
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JP7234565B2 |
An object of the present invention is to provide a golf ball comprising a paint film having improved abrasion resistance without substantially lowering the spin performance. The present invention provides a golf ball comprising a golf ba...
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JP2023029267A |
To provide a rubber composition for golf balls which sets the hardness difference in the hardness distribution in an interior of a golf ball core to a large value while maintaining a desired core hardness and is thereby able to manifest ...
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JP2023028455A |
To provide a golf ball 2 which is excellent in all of flight performance at a shot with a driver, flight performance at a shot with a middle iron, hitting feeling at a shot with the driver, and hitting feeling with a putter.A golf ball 2...
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JP2023028456A |
To provide a golf ball 2 which is excellent in all of flight performance at a shot with a middle iron, spin performance at a shot with a short iron, hitting feeling at a shot with the middle iron, and hitting feeling with a putter.A golf...
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JP7225798B2 |
A golf ball for amateur golfers exhibits excellent flight characteristics when hit by the average golfer and also has a good feel at impact that is both soft and solid. The golf ball includes a core, an intermediate layer and a cover, an...
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JP2023021031A |
To provide a rubber composition for a golf ball which can improve flight performance by exerting low-spin characteristics in hitting the golf ball by setting a hardness difference large in the hardness distribution in the core while keep...
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JP2023019338A |
To provide a golf ball which is designed not to compete excessively for superiority in terms of a distance when a golfer with a high head speed (HS) and an ordinary golfer use the same ball.A golf ball in this invention includes a core a...
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JP2023021029A |
To provide a rubber composition for a golf ball which can improve flight performance by exerting low-spin characteristics in hitting the golf ball by setting a hardness difference large in the hardness distribution in the core while keep...
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JP7218536B2 |
An object of the present invention is to provide a golf ball having excellent shot feeling and durability. The present invention provides a golf ball comprising a constituent member containing a crosslinked rubber component and resin fin...
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JP7218537B2 |
A golf ball strikes a good balance between the durability and the shot feeling, and includes a spherical core and at least one cover disposed outside the spherical core. At least one layer of the cover contains (A) a base resin and (B) a...
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JP7218563B2 |
A golf ball includes a spherical core and a cover positioned outside the core. The core has an inner layer and an outer layer positioned outside the inner layer. The inner layer is obtained by crosslinking a rubber composition. The rubbe...
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