KY

Keiji Yamashita

TO Toyota: 25 patents #786 of 26,838Top 3%
Canon: 17 patents #3,927 of 19,416Top 25%
CC Chugoku Electric Power Co.: 6 patents #8 of 143Top 6%
SR Sessile Research: 5 patents #1 of 8Top 15%
MC Menicon Co.: 5 patents #37 of 263Top 15%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
SO Sony: 1 patents #17,262 of 25,231Top 70%
📍 Seto, JP: #4 of 328 inventorsTop 2%
Overall (All Time): #50,699 of 4,157,543Top 2%
52
Patents All Time

Issued Patents All Time

Showing 51–52 of 52 patents

Patent #TitleCo-InventorsDate
5630901 Method and jig for holding contact lens material, using light-scattering bonding adhesive Yasuyoshi Yamamoto, Atsuhiro Doke, Hiroyuki Ohyama, Seiichi Ichikawa 1997-05-20
5532768 Contact lens Takayuki Onogi, Kazuya Miyamura 1996-07-02