JU

Junji Umezawa

BC Bridgestone Sports Co.: 59 patents #14 of 224Top 7%
Bridgestone: 2 patents #1,066 of 2,860Top 40%
📍 Chichibu, JP: #6 of 144 inventorsTop 5%
Overall (All Time): #38,186 of 4,157,543Top 1%
61
Patents All Time

Issued Patents All Time

Showing 51–61 of 61 patents

Patent #TitleCo-InventorsDate
6054550 Wound golf ball Shinichi Kakiuchi, Yasushi Ichikawa, Nobuhiko Matsumura, Kunitoshi Ishihara 2000-04-25
5993968 Wound golf ball Shinichi Kakiuchi, Yutaka Masutani, Nobuhiko Matsumura, Kunitoshi Ishihara 1999-11-30
5976035 Wound golf ball Shinich Kakiuchi, Yutaka Masutani, Yasushi Ichikawa 1999-11-02
5846142 Golf ball Shinichi Kakiuchi 1998-12-08
5823888 Wound golf ball Takashi Maruko 1998-10-20
5823890 Golf ball Takashi Maruko, Shinichi Kakiuchi 1998-10-20
5810677 Thread-wound golf balls and their production process Takashi Maruko, Shinichi Kakiuchi 1998-09-22
5800286 Golf ball Shinichi Kakiuchi, Yasushi Ichikawa, Takashi Maruko, Kunitoshi Ishihara, Nobuhiko Matsumura 1998-09-01
5792008 Golf ball Shinichi Kakiuchi, Yasushi Ichikawa, Takashi Maruko, Kunitoshi Ishihara, Nobuhiko Matsumura 1998-08-11
5755628 Thread-wound golf ball and a method for manufacturing the same Shinichi Kakiuchi 1998-05-26
5685785 Wound golf ball Shinichi Kakiuchi 1997-11-11