YI

Yasushi Ichikawa

BC Bridgestone Sports Co.: 105 patents #4 of 224Top 2%
Nike: 46 patents #145 of 2,652Top 6%
Nissan Motor Co.: 15 patents #389 of 8,689Top 5%
SK Showa Denko K.K.: 5 patents #278 of 1,736Top 20%
NE NS Sumikin Engineering: 2 patents #16 of 113Top 15%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
SC Showa Highpolymer Co.: 1 patents #45 of 102Top 45%
FC Feng Tay Enterprises Co.: 1 patents #9 of 18Top 50%
📍 Tualatin, OR: #2 of 324 inventorsTop 1%
🗺 Oregon: #74 of 28,073 inventorsTop 1%
Overall (All Time): #4,462 of 4,157,543Top 1%
176
Patents All Time

Issued Patents All Time

Showing 151–175 of 176 patents

Patent #TitleCo-InventorsDate
6054550 Wound golf ball Junji Umezawa, Shinichi Kakiuchi, Nobuhiko Matsumura, Kunitoshi Ishihara 2000-04-25
6051654 Golf ball Yoshinori Egashira, Hideo Watanabe 2000-04-18
6037419 Golf ball Rinya Takesue, Shunichi Kashiwagi 2000-03-14
6034182 Golf ball cover stocks and golf balls Shunichi Kashiwagi, Rinya Takesue 2000-03-07
6022279 Golf ball Hisashi Yamagishi, Shunichi Kashiwagi, Rinya Takesue, Akira Kawata 2000-02-08
5994472 Ionomer covered golf ball Yoshinori Egashira, Shunichi Kashiwagi 1999-11-30
5976035 Wound golf ball Junji Umezawa, Shinich Kakiuchi, Yutaka Masutani 1999-11-02
5977264 Golf ball Shunichi Kashiwagi, Rinya Takesue 1999-11-02
5967908 Golf ball Hisashi Yamagishi, Hiroshi Higuchi, Junji Hayashi 1999-10-19
5935021 Golf ball Shunichi Kashiwagi, Rinya Takesue 1999-08-10
5929189 Golf ball Shunichi Kashiwagi 1999-07-27
5902192 Golf ball Shunichi Kashiwagi, Rinya Takesue 1999-05-11
5872185 Golf ball Hisashi Yamagishi, Hiroshi Higuchi, Shunichi Kashiwagi 1999-02-16
5830085 Three-piece solid golf ball Hiroshi Higuchi, Hisashi Yamagishi 1998-11-03
5807192 Solid golf ball Hisashi Yamagishi, Junji Hayashi, Atsushi Nakamura 1998-09-15
5800286 Golf ball Shinichi Kakiuchi, Takashi Maruko, Junji Umezawa, Kunitoshi Ishihara, Nobuhiko Matsumura 1998-09-01
5792008 Golf ball Shinichi Kakiuchi, Takashi Maruko, Junji Umezawa, Kunitoshi Ishihara, Nobuhiko Matsumura 1998-08-11
5779563 Multi-piece solid golf ball Hisashi Yamagishi, Atsushi Nakamura 1998-07-14
5756583 Golf ball cover composition Yoshinori Egashira, Hisashi Yamagishi, Hideo Watanabe 1998-05-26
5752889 Two-piece solid golf ball Hisashi Yamagishi, Atsushi Nakamura 1998-05-19
5714546 Golf ball cover composition Yoshinori Egashira, Hisashi Yamagishi, Hideo Watanabe 1998-02-03
5714569 Aliphatic polyester resin and method for producing same Mitsuhiro Imaizumi, Hideharu Kimura, Ryutaro Fujihira, Jun Suzuki, Yoshihiro Moteki +2 more 1998-02-03
5695413 Solid golf ball Hisashi Yamagishi, Hiroto Sasaki, Hideo Watanabe, Hiroshi Higuchi 1997-12-09
5688595 Multi-piece solid golf ball Hisashi Yamagishi, Hiroshi Higuchi, Junji Hayashi 1997-11-18
5605967 Golf ball Yoshinori Egashira, Hideo Watanabe 1997-02-25