YS

Yasumasa Shimizu

BC Bridgestone Sports Co.: 4 patents #8 of 26Top 35%
Yamaha: 1 patents #63 of 215Top 30%
Overall (2005): #5,190 of 245,428Top 3%
5
Patents 2005

Issued Patents 2005

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6939250 Multi-piece golf ball Junji Hayashi, Hisashi Yamagishi, Yasushi Ichikawa 2005-09-06
6921346 Two-piece solid golf ball Junji Hayashi, Hiroshi Higuchi, Rinya Takesue 2005-07-26
6887168 Two-piece solid golf ball Junji Hayashi, Hiroshi Higuchi, Yasushi Ichikawa 2005-05-03
6875132 Multi-piece solid golf ball Junji Hayashi, Hiroshi Higuchi, Rinya Takesue 2005-04-05
6838604 Wooden bars arranged for percussion instruments Hiroyasu Abe, Masayuki Kato, Yasuyuki Semba 2005-01-04