Katsuji Matsunaga
Kawagoe-shi, JP
Katsuji Matsunaga Patent applications | ||
Patent application number | Title | Published |
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20090082136 | Golf ball - The present invention aims to improve spin performance and abrasion resistance for a golf ball having a cover using a nonionic polyurethane as a resin component. The golf ball of the present invention is a golf ball including a core and a cover covering the core and in which the cover contains a nonionic polyurethane as a resin component and the nonionic polyurethane has a hard segment content of 24.5% to 34.7% by mass. | 03-26-2009 |