Patents by Inventor Hidetaka INOUE
Hidetaka INOUE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9884225Abstract: An object of the present invention is to provide a material for obtaining a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball resin composition having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5, and containing, as a resin component, (A) a polyamide resin, (B) at least one selected from the group consisting of (b-1) a binary copolymer, (b-2) a metal ion-neutralized product of a binary copolymer, (b-3) a ternary copolymer and (b-4) a metal ion-neutralized product of a ternary copolymer, and (C) a thermoplastic elastomer.Type: GrantFiled: March 11, 2016Date of Patent: February 6, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Mami Tanaka
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Publication number: 20170368417Abstract: A golf ball 2 includes a core 4, a mid layer 6, a cover 8, and dimples 10. A difference DH in hardness between a surface and a central point of the core 4, a thickness Tm and a hardness Hm of the mid layer 6, a thickness Tc and a hardness Hc of the cover 8, and an amount of compressive deformation Sb meet the following mathematical formulas. (DH*Hm)/(Hc*Tc)>80 ((Sb*Tc)/(Hc* Hm*Tm))*1000>0.75 An area ratio So of dimples 10 and a ratio Rs of a number of the dimples 10 each having a diameter of equal to or greater than 9.60% but equal to or less than 10.37% of a diameter of the golf ball 2 meet the following mathematical formula (3). Rs??2.Type: ApplicationFiled: April 18, 2017Publication date: December 28, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Kazuya KAMINO, Hidetaka INOUE, Kohei MIMURA
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Publication number: 20170348564Abstract: An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball having a low hardness part having a hardness in a range from 5 to 40 in Shore D hardness or a lowest hardness point in a core hardness distribution in a region located at a distance from 36.0% to 65.0% of a radius of the golf ball from a center point of the golf ball.Type: ApplicationFiled: August 22, 2017Publication date: December 7, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Takahiro SHIGEMITSU, Hidetaka INOUE
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Publication number: 20170340922Abstract: An object of the present invention is to provide a golf ball showing improved controllability on approach shots for less than 40 yards, in particular, on approach shots around the green (about 10 yards to 20 yards) and improved controllability on approach shots from the rough, and showing excellent shot feeling. The present invention provides a golf ball comprising a golf ball body and a paint film covering the golf ball body, wherein a loss tangent tan ? has a peak temperature of 50° C. or less and a peak height of less than 0.8, obtained by measuring dynamic viscoelasticity of the paint film under the following conditions: <Measuring conditions> Measuring mode: tensile mode Measuring temperature range: from ?100° C. to 150° C. Temperature rising rate: 4° C./min Oscillation frequency: 10 Hz Measuring strain: 0.1%.Type: ApplicationFiled: May 11, 2017Publication date: November 30, 2017Applicant: Dunlop Sports Co. Ltd.Inventors: Hidetaka INOUE, Toshiyuki TARAO
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Patent number: 9764199Abstract: An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball having a low hardness part having a hardness in a range from 5 to 40 in Shore D hardness or a lowest hardness point in a core hardness distribution in a region located at a distance from 36.0% to 65.0% of a radius of the golf ball from a center point of the golf ball.Type: GrantFiled: June 29, 2015Date of Patent: September 19, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Takahiro Shigemitsu, Hidetaka Inoue
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Patent number: 9757621Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball comprising a spherical core, a first resin layer and a second resin layer, wherein the first resin layer is formed from a first resin composition containing (A) a polyamide resin, (B) a copolymer and/or a metal ion-neutralized product thereof, and (C) a thermoplastic elastomer, and having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5; and the second resin layer is formed from a second resin composition containing (D) a polyamide resin, and (E) a copolymer and/or a metal ion-neutralized product thereof.Type: GrantFiled: March 11, 2016Date of Patent: September 12, 2017Assignee: DUNLOP SPORTS CO., LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Mami Tanaka
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Patent number: 9717965Abstract: An object of the present invention is to provide a golf club grip excellent in grip performance in a wet condition. The present invention provides a golf club grip formed from a rubber composition comprising a base rubber and a crosslinking agent, wherein the base rubber comprises a hydrogenated acrylonitrile-butadiene rubber and/or a carboxyl-modified acrylonitrile-butadiene rubber.Type: GrantFiled: May 11, 2015Date of Patent: August 1, 2017Assignee: DUNLOP SPORTS CO. LTDInventors: Chiemi Mikura, Sho Goji, Kazuyoshi Shiga, Kuniyasu Horiuchi, Toshiyuki Tarao, Hidetaka Inoue, Hitoshi Oyama, Hiroshi Hasegawa
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Publication number: 20170182386Abstract: An object of the present invention is to provide a grip for sporting goods containing an acrylonitrile-butadiene based rubber as a base rubber and having an excellent grip performance and sustainability of grip performance under a wet condition. The present invention provides a grip for sporting goods comprising an outermost surface layer formed from a surface layer rubber composition, wherein the surface layer rubber composition contains (A) a base rubber and (B) a resin having a softening point in a range from 5° C. to 120° C., (A) the base rubber contains an acrylonitrile-butadiene based rubber, and (B) the resin is at least one type selected from the group consisting of a hydrogenated rosin ester, a disproportionated rosin ester, an ethylene-vinyl acetate copolymer, a coumarone resin, a phenol resin, a xylene resin and a styrene resin.Type: ApplicationFiled: December 23, 2016Publication date: June 29, 2017Applicant: Dunlop Sports Co. Ltd.Inventors: Hidetaka INOUE, Sho GOJI, Kuniyasu HORIUCHI, Kazuyoshi SHIGA, Chiemi MIKURA, Hitoshi OYAMA, Toshiyuki TARAO, Hiroshi HASEGAWA
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Publication number: 20170173398Abstract: An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots, exhibiting an excellent spin performance on approach shots under a dry condition and a wet condition, and showing an excellent shot feeling and durability. The present invention provides a golf ball comprising a golf ball body having a spherical core, an intermediate layer and a cover, and a paint film composed of two or more layers, wherein a 10% elastic modulus difference (Min?Mout) between an innermost layer and an outermost layer of the paint film is 25 kgf/cm2 or more.Type: ApplicationFiled: December 16, 2016Publication date: June 22, 2017Applicant: Dunlop Sports Co. Ltd.Inventors: Kosuke TACHIBANA, Kazuya KAMINO, Toshiyuki TARAO, Hidetaka INOUE
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Publication number: 20170165527Abstract: An object of the present invention is to provide a golf ball showing an increased spin rate on approach shots under a wet condition while maintaining a spin rate on approach shots under a dry condition. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film has a multi-layered construction composed of two or more layers, and a difference (Mout?Min) between a 10% elastic modulus (Mout) of an outermost layer of the paint film and a 10% elastic modulus (Min) of an innermost layer of the paint film is 25 kgf/cm2 or more.Type: ApplicationFiled: December 9, 2016Publication date: June 15, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao
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Publication number: 20170144028Abstract: An object of the present invention is to provide a golf ball showing increased controllability on approach shots for less than 40 yards and showing excellent shot feeling. In the inventive golf ball, the paint film is formed from a curing type paint composition including: a base material containing a polyrotaxane, and a curing agent containing a polyisocyanate, and wherein the polyrotaxane has a cyclodextrin, a linear molecule included in a cyclic structure of the cyclodextrin in a manner of piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both ends of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: ApplicationFiled: February 2, 2017Publication date: May 25, 2017Applicant: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka INOUE, Toshiyuki TARAO, Kuniyasu HORIUCHI
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Patent number: 9656126Abstract: An object of the present invention is to provide a golf ball showing increased controllability on approach shots for less than 40 yards and showing excellent shot feeling. In the inventive golf ball, the paint film is formed from a curing type paint composition including: a base material containing a polyrotaxane, and a curing agent containing a polyisocyanate, and wherein the polyrotaxane has a cyclodextrin, a linear molecule included in a cyclic structure of the cyclodextrin in a manner of piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both ends of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group.Type: GrantFiled: November 13, 2015Date of Patent: May 23, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Kuniyasu Horiuchi
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Patent number: 9630077Abstract: An object of the present invention is to provide a grip for sporting goods excellent in tensile strength and having a light weight. The present invention provides a grip for sporting goods comprising a cylindrical portion composed of a cylindrical inner layer and a cylindrical outer layer covering the cylindrical inner layer, wherein the cylindrical inner layer is a porous rubber layer or a porous resin layer, and the cylindrical outer layer is formed from a rubber composition containing an acrylonitrile-butadiene based rubber.Type: GrantFiled: November 13, 2015Date of Patent: April 25, 2017Assignee: DUNLAP SPORTS CO. LTD.Inventors: Chiemi Mikura, Sho Goji, Kazuyoshi Shiga, Kuniyasu Horiuchi, Toshiyuki Tarao, Hidetaka Inoue, Hitoshi Oyama, Hiroshi Hasegawa
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Patent number: 9586113Abstract: An object of the present invention is to provide a golf club grip comprising a layer containing a polar rubber and a layer containing a nonpolar rubber, and excellent in tensile strength. The present invention provides a golf club grip comprising a polar rubber layer and a nonpolar rubber layer, wherein the polar rubber layer is formed from a rubber composition containing a base rubber including a polar rubber in an amount of 50 mass % or more, the nonpolar rubber layer is formed from a rubber composition containing a base rubber including a nonpolar rubber in an amount of 50 mass % or more, the polar rubber layer and the nonpolar rubber layer are laminated via an interlayer formed from an interlayer composition containing an olefin rubber.Type: GrantFiled: October 30, 2015Date of Patent: March 7, 2017Assignee: Dunlop Sports Co. Ltd.Inventors: Sho Goji, Chiemi Mikura, Kazuyoshi Shiga, Kuniyasu Horiuchi, Toshiyuki Tarao, Hidetaka Inoue, Hitoshi Oyama, Hiroshi Hasegawa
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Publication number: 20170056731Abstract: An object of the present invention is to provide a golf ball showing an increased spin rate on approach shots under a wet condition while maintaining a spin rate on approach shots under a dry condition. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film has a multi-layered construction composed of two or more layers, and a difference (Min?Mout) between a 10% elastic modulus (Min) of an innermost layer of the paint film and a 10% elastic modulus (Mout) of an outermost layer of the paint film is 25 kgf/cm2 or more.Type: ApplicationFiled: August 24, 2016Publication date: March 2, 2017Applicant: Dunlop Sports Co. Ltd.Inventors: Toshiyuki TARAO, Hidetaka INOUE, Kazuya KAMINO, Kosuke TACHIBANA
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Patent number: 9517386Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots.Type: GrantFiled: October 28, 2014Date of Patent: December 13, 2016Assignee: DUNLOP SPORTS CO., LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Kuniyasu Horiuchi, Kazumi Kodama, Keiichi Hattori, Kotaro Ryuo
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Publication number: 20160339311Abstract: An object of the present invention is to provide a golf club grip having excellent adhesion between the grip body and the grip end thereof, and excellent durability. The present invention provides a golf club grip comprising a cylindrical grip body having a cylindrical inner layer and a cylindrical outer layer covering the cylindrical inner layer, and a grip end provided on an butt side end of the cylindrical grip body, wherein the cylindrical outer layer is interposed in at least a part of a space between a butt side end edge of the cylindrical inner layer and the grip end.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: DUNLOP SPORTS CO., LTD.Inventors: Sho GOJI, Chiemi MIKURA, Kazuyoshi SHIGA, Kuniyasu HORIUCHI, Toshiyuki TARAO, Hidetaka INOUE, Hitoshi OYAMA, Hiroshi HASEGAWA
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Patent number: 9493650Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots and a golf ball resin composition.Type: GrantFiled: October 28, 2014Date of Patent: November 15, 2016Assignee: DUNLOP SPORTS CO. LTD.Inventors: Hidetaka Inoue, Toshiyuki Tarao, Kuniyasu Horiuchi, Kazumi Kodama, Keiichi Hattori, Kotaro Ryuo
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Publication number: 20160287944Abstract: An object of the present invention is to provide a material for obtaining a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball resin composition having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5, and containing, as a resin component, (A) a polyamide resin, (B) at least one selected from the group consisting of (b-1) a binary copolymer, (b-2) a metal ion-neutralized product of a binary copolymer, (b-3) a ternary copolymer and (b-4) a metal ion-neutralized product of a ternary copolymer, and (C) a thermoplastic elastomer.Type: ApplicationFiled: March 11, 2016Publication date: October 6, 2016Applicant: DUNLOP SPORTS CO., LTD.Inventors: Hidetaka INOUE, Toshiyuki TARAO, Mami TANAKA
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Publication number: 20160287943Abstract: An object of the present invention is to provide a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball comprising a spherical core, a first resin layer and a second resin layer, wherein the first resin layer is formed from a first resin composition containing (A) a polyamide resin, (B) a copolymer and/or a metal ion-neutralized product thereof, and (C) a thermoplastic elastomer, and having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5; and the second resin layer is formed from a second resin composition containing (D) a polyamide resin, and (E) a copolymer and/or a metal ion-neutralized product thereof.Type: ApplicationFiled: March 11, 2016Publication date: October 6, 2016Applicant: Dunlop Sports Co. Ltd.Inventors: Hidetaka INOUE, Toshiyuki TARAO, Mami TANAKA