YM

Yoshiko Matsuyama

SL Sri Sports Limited: 7 patents #63 of 176Top 40%
DC Dunlop Sports Co.: 6 patents #50 of 168Top 30%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
Overall (All Time): #347,685 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
10195494 Golf ball Takahiro Sajima, Kohei MIMURA 2019-02-05
9873025 Golf ball Masatoshi Yokota, Hirokazu Okamoto, Kazuo Yagi 2018-01-23
9839815 Golf ball Toshiyuki Tarao 2017-12-12
9789364 Golf ball 2017-10-17
9205309 Golf ball Kazuhiko Isogawa, Kosuke TACHIBANA 2015-12-08
9144713 Golf ball Takahiro Sajima 2015-09-29
9011272 Golf ball Kazuhiko Isogawa, Keiji Ohama, Seiichiro Endo 2015-04-21
8998748 Golf ball Kazuhiko Isogawa, Kosuke TACHIBANA 2015-04-07
8951148 Golf ball 2015-02-10
8951147 Golf ball Satoko Okabe, Takahiro Sajima 2015-02-10
8888610 Golf ball Takahiro Sajima, Keiji Ohama 2014-11-18
8882610 Golf ball Takahiro Sajima, Keiji Ohama 2014-11-11
8777779 Golf ball Takahiro Sajima 2014-07-15
8657704 Golf ball Keiji Ohama, Toshiyuki Tarao, Kazuyoshi Shiga, Hirotaka Nakamura, Takahiro Sajima 2014-02-25