YY

Yoshikazu Yabuki

SI Sumitomo Rubber Industries: 31 patents #39 of 1,637Top 3%
SL Sri Sports Limited: 8 patents #57 of 176Top 35%
Overall (All Time): #83,477 of 4,157,543Top 3%
39
Patents All Time

Issued Patents All Time

Showing 26–39 of 39 patents

Patent #TitleCo-InventorsDate
5633322 Golf ball Yoshinori Sano 1997-05-27
5585440 Rubber composition for golf balls Mikio Yamada, Seiichiro Endo 1996-12-17
5565524 Golf ball Akihiko Hamada, Yoshinori Sano 1996-10-15
5552190 Golf ball and method of manufacturing the same Kiyoto Maruoka, Kuniyasu Horiuchi 1996-09-03
5542663 Thread wound golf ball Akira Kato 1996-08-06
5516110 Two piece golf ball Seiichiro Endo 1996-05-14
5506004 Method for coating golf balls Kiyoto Maruoka, Kuniyasu Horiuchi, Masatoshi Takahashi 1996-04-09
5490674 Three-piece solid golf ball Akihiko Hamada, Yoshimasa Koizumi, Hidenori Hiraoka 1996-02-13
5482285 Three-piece solid golf ball Hidenori Hiraoka, Yoshimasa Koizumi 1996-01-09
5403010 Two-piece golf ball Seiichiro Endo 1995-04-04
5304608 Two piece golf ball Seiichiro Endo 1994-04-19
5156404 Golf ball Kengo Oka, Kiyoto Maruoka 1992-10-20
5090705 Golf ball Kengo Oka, Susumu Yoshida, Yoshiyuki Mimoto, Tadahiro Ebisuno 1992-02-25
5072945 Golf ball Kengo Oka 1991-12-17