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    Three-piece golf ball
    2.
    发明专利
    Three-piece golf ball 未知

    公开(公告)号：GB2342295B

    公开(公告)日：2003-02-19

    申请号：GB9923769

    申请日：1999-10-07

    Applicant: SUMITOMO RUBBER IND

    Inventor： SUGIMOTO KAZUSHIGE

    IPC: A63B37/00 ,  A63B37/02 ,  A63B37/12

    Abstract: The present invention provides a three-piece golf ball which has an improved controllability at an approach shot while maintaining a long flight distance inherent to a solid golf ball. In the three-piece golf ball, the hardness, the specific gravity, and deformation amounts of the center and the core are determined in consideration of the relationship between each other.

    3.
    发明专利
    未知

    公开(公告)号：DE69426854D1

    公开(公告)日：2001-04-19

    申请号：DE69426854

    申请日：1994-10-31

    Applicant: SUMITOMO RUBBER IND

    Inventor： MORIYAMA KEIJI ,  EBISUNO TADAHIRO ,  SUGIMOTO KAZUSHIGE

    IPC: A63B37/00 ,  A63B37/06 ,  A63B37/08

    Abstract: A golf ball (G) comprises a liquid center (1), a rubber thread layer (2) formed around the liquid center (1) and a cover (3) covering the rubber thread layer (2), wherein said liquid center (1) has a diameter (L1) of 29.5 to 32.0 mm and the ratio, Y, of the sum total of the flat surface area (5S) of dimples (5) to the surface area (G-1) of the same sphere having no dimples formed thereon is within the range of 0.80 to 0.84. The total volumes of dimples (5) are in the range of 290 to 340 mm . The dimples (5) include a plurality of kinds of dimples having different diameters.

    4.
    发明专利
    未知

    公开(公告)号：DE69415605D1

    公开(公告)日：1999-02-11

    申请号：DE69415605

    申请日：1994-08-12

    Applicant: SUMITOMO RUBBER IND

    Inventor： EBISUNO TADAHIRO ,  SUGIMOTO KAZUSHIGE ,  MORIYAMA KEIJI ,  HIRAU TSUTOMU

    IPC: A63B37/00 ,  A63B37/06 ,  A63B37/08 ,  A63B37/02

    Abstract: Disclosed is a thread wound golf ball having uniform flight performances, which causes little scattering of weight and inclusion of air into the liquid center, such that no separation of the paste occurs. The thread wound golf ball comprises a liquid center, a thread rubber layer and a cover. The liquid center comprises a paste and a center bag for coating the paste. The viscosity at 23 DEG C (measured by a B type viscometer) of the paste is in the range of from 15 to 70 poise.

    Three-piece solid golf ball
    5.
    发明专利
    Three-piece solid golf ball 未知

    公开(公告)号：AU701382B2

    公开(公告)日：1999-01-28

    申请号：AU5047596

    申请日：1996-04-03

    Applicant: SUMITOMO RUBBER IND

    Inventor： HIRAOKA HIDENRI ,  SUGIMOTO KAZUSHIGE ,  MORIYAMA KEIJI ,  KOIZUMI YOSHIMASA ,  HORIUCHI KUNIYASU

    IPC: A63B37/00 ,  A63B37/06

    Abstract: A three-piece solid golf ball which attains a long flight distance with excellent controllability which comprises a core having a two-layer structure of a center and a shell covering the center, and a cover covering the core, wherein the center has a diameter of 25 to 37 mm, a JIS-C hardness of 60 to 85 at its center point, and a JIS-C hardness difference between the center point and a surface of the center of not more than 4, the shell has a JIS-C surface hardness of 75 to 90, and the cover has a stiffness modulus of 1,200 to 3,600 kg/cm2, with; the hardness being measured by a JIS-C type hardness tester.

    6.
    发明专利
    未知

    公开(公告)号：DE69410909D1

    公开(公告)日：1998-07-16

    申请号：DE69410909

    申请日：1994-09-06

    Applicant: SUMITOMO RUBBER IND

    Inventor： YAMADA MIKIO ,  MORIYAMA KEIJI ,  EBISUNO TADAHIRO ,  SUGIMOTO KAZUSHIGE

    IPC: A63B37/00 ,  A63B37/06 ,  A63B37/08

    Abstract: Disclosed is a thread wound golf ball comprising a liquid center comprising a rubber bag containing a liquid, a rubber thread layer provided on the outside of the liquid center and a cover for covering the rubber thread layer, wherein the moment of inertia of the golf ball measured at about 23 DEG C is in the range of from 75 to 80 g.cm and the rate of increase of the moment of inertia measured at about -30 DEG C to that measured at about 23 DEG C is within about 2%.

    Three-piece golf ball
    9.
    发明专利
    Three-piece golf ball 未知

    公开(公告)号：GB2342295A

    公开(公告)日：2000-04-12

    申请号：GB9923769

    申请日：1999-10-07

    Applicant: SUMITOMO RUBBER IND

    Inventor： SUGIMOTO KAZUSHIGE

    IPC: A63B37/00 ,  A63B37/02 ,  A63B37/12

    Abstract: A three-piece golf ball comprises a cover and a core including a centre and a shell wherein the centre has a diameter of 27 to 37 mm and the centre and the shell are related so that the specific gravity of the centre is less than that of the shell, the difference between the total deformation between 10 kgf and 130 kgf of the centre and core respectively is at least 0.5 and the hardness at the surface of the centre is greater than the hardness of the origin by at least 8 JIS-C units, the cover has a Shore D Hardness of less than 60 and the core has a surface hardness of at least JIS-C 80.

    Three-piece solid golf ball
    10.
    发明专利
    Three-piece solid golf ball 未知

    公开(公告)号：GB2313789A

    公开(公告)日：1997-12-10

    申请号：GB9711811

    申请日：1997-06-06

    Applicant: SUMITOMO RUBBER IND

    Inventor： SUGIMOTO KAZUSHIGE ,  MORIYAMA KEIJI

    IPC: A63B37/00 ,  A63B37/04 ,  C08L9/00 ,  C08L21/00

    Abstract: A three-piece solid golf ball comprises an inner core, an outer core and a cover wherein the inner core has a diameter of from 31 to 36 mm and a JIS-C Hardness of from 60 to 85 and the outer core has a lower JIS-C Hardness than the inner core by from 5 to 25. The ball has excellent rebound and flight performance, durability and shot feel at the time of hitting.

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