SY

Seiji Yamada

KT Kabushiki Kaisha Toshiba: 15 patents #1,982 of 21,451Top 10%
SO Sony: 14 patents #3,108 of 25,231Top 15%
MI Minolta: 14 patents #132 of 1,109Top 15%
IC Ishida Scales Mfg. Co.: 10 patents #2 of 63Top 4%
CH Chuo Hatsujo: 5 patents #12 of 122Top 10%
NL Noritake Co., Limited: 4 patents #23 of 334Top 7%
Kyocera: 4 patents #773 of 3,732Top 25%
TO Toyota: 3 patents #8,352 of 26,838Top 35%
Bridgestone: 3 patents #795 of 2,860Top 30%
KW Kanto Auto Works: 3 patents #2 of 39Top 6%
IBM: 2 patents #32,839 of 70,183Top 50%
IS Ishida Koki Seisakusho: 2 patents #19 of 57Top 35%
DC Dai Nippon Toryo Co.: 1 patents #73 of 196Top 40%
SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
TC Taihei Chemical Industrial Co.: 1 patents #4 of 17Top 25%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
TU Tohoku University: 1 patents #615 of 1,680Top 40%
TK Topy Kogyo Kabushiki Kaisha: 1 patents #71 of 189Top 40%
CI Chubu Electric Power Company, Incorporated: 1 patents #104 of 314Top 35%
AI Akihisa Inoue: 1 patents #4 of 24Top 20%
MC Mitsubishi Yuka Fine Chemicals Co.: 1 patents #16 of 39Top 45%
Overall (All Time): #22,138 of 4,157,543Top 1%
81
Patents All Time

Issued Patents All Time

Showing 76–81 of 81 patents

Patent #TitleCo-InventorsDate
4235544 Data imprinting lamp control circuit Norio Beppu 1980-11-25
4214827 Automatic focus control camera Shinji Tominaga, Toshinori Imura, Yasuzi Kogure 1980-07-29
4213682 Programmed exposure control system for a camera 1980-07-22
4212523 Auto-focus camera having rangefinder system Shinji Tominaga, Yasuzi Kogure, Toshinori Imura 1980-07-15
4212000 Position-to-digital encoder 1980-07-08
4182573 Exposure meter Ichiro Yoshiyama, Mashio Kitaura 1980-01-08