Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4283632 | Electron beam aperture device | Takayoshi Ikeda | 1981-08-11 |
| 4219732 | Magnetic electron lens | Akira Yonezawa, Masatsugu Kikuchi | 1980-08-26 |
SN
Seiichi Nakagawa
Jeol: 4 patents #90 of 669Top 15%
Panasonic: 2 patents #9,678 of 21,108Top 50%
Nihon Denshi Kabushiki Kaisha: 2 patents #1 of 11Top 10%
Sony: 1 patents #17,262 of 25,231Top 70%
Fuji Oozx: 1 patents #22 of 37Top 60%
E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
Overall (All Time): #142,728 of 4,157,543Top 4%
27
Patents All Time