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公开(公告)号：US20220314079A1
公开(公告)日：2022-10-06
申请号：US17711353
申请日：2022-04-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yasuo NAITO , Kazuya KAMINO , Kazuyoshi SHIGA , Mariko HASHINOKUCHI , Hidetaka INOUE , Sho GOJI
Abstract: An object of the present disclosure is to provide a golf ball having excellent spin performance on approach shots. The present disclosure provides a golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body, wherein an outermost layer of the paint film contains, as a base resin, a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition, and the outermost layer of the paint film has tackiness of 0.294 N or more measured with a friction tester.
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公开(公告)号：US20220280854A1
公开(公告)日：2022-09-08
申请号：US17681849
申请日：2022-02-28
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Kazuya KAMINO , Atsushi HIRANO , Ken YAMAMOTO , Takuya SEKINE
Abstract: A method for providing information to a golfer includes a voice information acquiring step of acquiring, by a portable terminal, voice information emanated by the golfer, an information identifying step of analyzing the voice information by the portable terminal or a computer with the voice information received from the portable terminal to identify a piece of advice information suitable for the golfer from an advice information table including a plurality of pieces of the advice information recorded in advance in the portable terminal or the computer, and an information output step of outputting the piece of the advice information identified in the information identifying step from the portable terminal in a manner perceptible to the golfer.
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公开(公告)号：US20220212061A1
公开(公告)日：2022-07-07
申请号：US17702039
申请日：2022-03-23
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Kazuya KAMINO , Hidetaka INOUE , Toshiyuki TARAO
Abstract: A golf ball 2 includes a main body 4 and a paint layer 6 positioned outside the main body 4. The main body 4 includes a spherical core 8, a mid layer 10 positioned outside the core 8, and a cover 12 positioned outside the mid layer 10. An indentation depth, measured when the paint layer 6 in a cross-section along a plane passing through a central point of the golf ball 2 is pressed by a force of 30 mgf in a direction perpendicular to the cross-section, is not less than 300 nm and not greater than 3000 nm. The paint layer 6 preferably has a thickness of not less than 5 μm and not greater than 50 μm.
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公开(公告)号：US20200338396A1
公开(公告)日：2020-10-29
申请号：US16850686
申请日：2020-04-16
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Kazuya KAMINO , Hidetaka INOUE , Kuniyasu HORIUCHI , Kuniyuki NISHIKAWA
IPC: A63B37/00 , C09D183/06 , C09D7/40
Abstract: An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots on a rainy day or the like and having excellent spin performance on approach shots. The present invention provides a golf ball comprising a golf ball body and a paint film covering the golf ball body and composed of at least one layer, wherein an outermost layer of the paint film is formed from a paint containing a curable silicone resin, a curing catalyst, and a reactive silicone oil.
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公开(公告)号：US20190232117A1
公开(公告)日：2019-08-01
申请号：US16239131
申请日：2019-01-03
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Hidetaka INOUE , Kazuya KAMINO
IPC: A63B37/00
CPC classification number: A63B37/0092 , A63B37/0043 , A63B37/0045 , A63B37/0063 , A63B37/0076 , A63B37/0096 , A63B2102/32
Abstract: 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 rubber composition of the inner layer includes a butyl-based rubber as a base rubber. The inner layer has a diameter Di of not less than 10 mm and not greater than 34 mm. A difference (H2−H0) between a Shore C hardness H2 at a surface of the outer layer and a Shore C hardness H0 at a central point of the inner layer is less than 35. Preferably, the butyl-based rubber is a polymer including an isobutylene unit and an isoprene unit, and a derivative thereof.
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Patent Agency Ranking
公开(公告)号：US20230381595A1
公开(公告)日：2023-11-30
申请号：US18195994
申请日：2023-05-11
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Hidetaka INOUE , Mariko HASHINOKUCHI , Kazuya KAMINO
CPC classification number: A63B37/0063 , A63B37/0043 , A63B37/0031 , A63B37/0045 , A63B37/0033 , A63B37/0087 , C08K5/05
Abstract: An object of the present disclosure is to provide a golf ball having excellent flight distance on driver shots and good spin rate on middle iron shots. The present disclosure provides a golf ball comprising a spherical core and a cover, wherein a hardness difference (C1-C0), a hardness difference (C2-C1), a hardness difference (C3-C2) and a hardness difference (C4-C3) are more than 0 and 6.0 or less, a hardness difference (C5-C4) is 5.0 or more, and a hardness difference (C6-C5), a hardness difference (C7-C6) and a hardness difference (C8-C7) are more than 0 and 3.5 or less where C0 (center), C1, C2, C3, C4, C5, C6, C7 and C8 (surface) are a Shore C hardness at each point from the center obtained by dividing a radius of the spherical core into equal eight parts.
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公开(公告)号：US20220143471A1
公开(公告)日：2022-05-12
申请号：US17495216
申请日：2021-10-06
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Toshiyuki TAKUBO , Takahiro SAJIMA , Kuniyasu HORIUCHI , Hiroshi SHINOHARA , Jiro MORI , Tsuyoshi ITO , Masanobu YOSHIDA , Kazuya KAMINO , Hidetaka INOUE , Masahide ONUKI
IPC: A63B37/00
Abstract: A golf ball 2 includes a core 4, an inner cover 6 positioned outside the core 4, and an outer cover 8 positioned outside the inner cover 6. The core 4 has a capsule 14, a plurality of separators 16, an electronic unit 18, and a plurality of fillings 20. The capsule 14 has a melting point of not lower than 100° C. A ratio P1 of a volume Vr of the capsule 14 to a volume Vc of the core 4 is not less than 25% and not greater than 75%. The electronic unit 18 is housed in the capsule 14. The electronic unit 18 detects behavior of the golf ball 2.
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公开(公告)号：US20220016489A1
公开(公告)日：2022-01-20
申请号：US17492270
申请日：2021-10-01
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Kazuya KAMINO , Hidetaka INOUE , Kuniyasu HORIUCHI , Kuniyuki NISHIKAWA
IPC: A63B37/00 , C09D7/40 , C09D183/06
Abstract: An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots on a rainy day or the like and having excellent spin performance on approach shots. The present invention provides a golf ball comprising a golf ball body and a paint film covering the golf ball body and composed of at least one layer, wherein an outermost layer of the paint film is formed from a paint containing a curable silicone resin, a curing catalyst, and a reactive silicone oil.
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公开(公告)号：US20210308531A1
公开(公告)日：2021-10-07
申请号：US17351514
申请日：2021-06-18
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Kazuya KAMINO , Hidetaka INOUE , Kuniyasu HORIUCHI
IPC: A63B37/00 , C09D175/08 , C09D7/61
Abstract: An object of the present invention is to provide a golf ball having improved ball speed or aerodynamic performance on a rainy day or the like by controlling the formulation of the paint film. The present invention provides a golf ball comprising a golf ball body and a paint film covering the golf ball body, wherein a paint film surface of the golf ball has a water contact angle A1 of 70° or more and a water sliding angle B1 of less than 50°. The present invention also provides a golf ball comprising a golf ball body and a paint film covering the golf ball body, wherein when a sheet consisting of a slab formed from a composition constituting a golf ball body surface and a coating film formed by applying a paint constituting the paint film on the slab is prepared, a coating film surface of the sheet has a water contact angle A2 of 90° or more and a water sliding angle B2 of less than 52°.
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公开(公告)号：US20200324169A1
公开(公告)日：2020-10-15
申请号：US16819282
申请日：2020-03-16
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Hidetaka INOUE , Kazuya KAMINO
IPC: A63B37/00
Abstract: 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 2.00. A ratio R3 calculated by mathematical formula (3): R3=D1/T3 is less than 50. In mathematical formulas (1) to (3), Df1 represents an amount of compressive deformation of the core, Df2 represents an amount of compressive deformation of a sphere including the core and the mid layer, Df3 represents an amount of compressive deformation of the golf ball, T2 represents a thickness of the mid layer, H2 represents a hardness of the mid layer, H3 represents a hardness of the cover, D1 represents a diameter of the core, and T3 represents a thickness of the cover.
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