Yasuo Kato

Brother Kogyo: 32 patents #228 of 2,767Top 9%

NT Nuflare Technology: 31 patents #6 of 298Top 3%

DE Denso: 21 patents #378 of 11,792Top 4%

Nichia: 13 patents #138 of 1,531Top 10%

TK Tokyo Kogaku Kikai: 11 patents #3 of 143Top 3%

HI Hitachi: 9 patents #4,653 of 28,497Top 20%

TO Topcon: 8 patents #103 of 684Top 20%

FI Fujifilm Business Innovation: 3 patents #2,355 of 5,238Top 45%

TO Toyota: 3 patents #8,352 of 26,838Top 35%

Tdk: 3 patents #1,522 of 3,796Top 45%

Canon: 3 patents #11,241 of 19,416Top 60%

NP Nippon Telegraph And Telephone Public: 3 patents #61 of 842Top 8%

FC Fuji Seiko Co.: 2 patents #15 of 81Top 20%

TK Toyo Boseki Kabushiki Kaisha: 2 patents #343 of 1,085Top 35%

CA Cataler: 2 patents #135 of 277Top 50%

SL Shiseido Company, Limited: 1 patents #543 of 1,112Top 50%

KO Komori: 1 patents #120 of 219Top 55%

NS Nippon Soken: 1 patents #783 of 1,540Top 55%

DI Dai Nippon Insatsu: 1 patents #197 of 371Top 55%

TC Toshiba Machine Co.: 1 patents #70 of 186Top 40%

U.S. Philips: 1 patents #4,133 of 8,851Top 50%

📍 Yokohama, JP: #47 of 480 inventorsTop 10%

Overall (All Time): #6,022 of 4,157,543Top 1%

152

Patents All Time

Issued Patents All Time

Showing 151–152 of 152 patents

Patent #	Title	Co-Inventors	Date
4277150	Eye refractmeter	Shinzi Wada, Ikuo Kitao, Taketoshi Ishihara	1981-07-07
4187014	Eye fundus camera	Kazuo Nunokawa	1980-02-05