Title:
ゴルフボール
Document Type and Number:
Japanese Patent JP4387539
Kind Code:
B2
Abstract:
A golf ball includes a core, an intermediate layer, and a cover. At a boundary between the core and the intermediate layer or at a boundary between the intermediate layer and the cover, convex ribs are formed in a network pattern on a first layer such that the convex ribs intrude into a second layer. In addition, columnar projections are formed on the first layer at positions corresponding to the nodes of the network pattern such that the columnar projections intrude into the second layer deeper than the convex ribs.
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Inventors:
Takashi Maruko
Hisashi Yamagishi
Hiroshi Masutani
Hisashi Yamagishi
Hiroshi Masutani
Application Number:
JP2000033085A
Publication Date:
December 16, 2009
Filing Date:
February 10, 2000
Export Citation:
Assignee:
Bridgestone Sports Co., Ltd.
International Classes:
A63B37/12; A63B37/00; A63B37/02; A63B37/14; A63B45/00
Domestic Patent References:
| JP2000005343A | ||||
| JP62270178A | ||||
| JP10216270A | ||||
| JP9285565A | ||||
| JP62246380A | ||||
| JP9215777A | ||||
| JP10337340A | ||||
| JP2000000330A |
Attorney, Agent or Firm:
Yoshimi Hatanaka
Kaoru Osawa
Kaoru Osawa