Issued Patents All Time
Showing 126–138 of 138 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4906894 | Photoelectron beam converting device and method of driving the same | Yukio Masuda, Ryuichi Arai, Nobutoshi Mizusawa, Takahiko Ishiwatari, Hitoshi Oda | 1990-03-06 |
| 4904895 | Electron emission device | Takeo Tsukamoto, Tetsuya Kaneko, Akira Suzuki, Isamu Shimoda, Toshihiko Takeda +1 more | 1990-02-27 |
| 4897552 | Multi-electron-beam pattern drawing apparatus | Masahiko Okunuki, Isamu Shimoda, Takeo Tsukamoto, Akira Suzuki, Tetsuya Kaneko +2 more | 1990-01-30 |
| 4894611 | System for measuring characteristics of electron emitting sources | Isamu Shimoda, Akira Suzuki, Tetsuya Kaneko, Takeo Tsukamoto, Toshihiko Takeda +1 more | 1990-01-16 |
| 4886587 | Method of producing thin film optical element by ion injection under electric field | — | 1989-12-12 |
| 4856861 | Light waveguide lens | Shigetaro Ogura, Kazuya Matsumoto | 1989-08-15 |
| 4853919 | Information processing apparatus in which a deflected light and O-order light are respectively used for information recording/reproduction and tracking, and a method therefor | Kazuya Matsumoto | 1989-08-01 |
| 4832428 | Waveguide optical system | Uuichi Handa | 1989-05-23 |
| 4823014 | Position detecting device usable with an object having a surface | — | 1989-04-18 |
| 4799750 | Optical function element and a method for manufacturing the same | — | 1989-01-24 |
| 4778236 | Thin film optical element | — | 1988-10-18 |
| 4705346 | Thin film type optical device | — | 1987-11-10 |
| 4691982 | Optical coupler | Yukuo Nishimura, Noriyuki Nose, Takashi Nakagiri | 1987-09-08 |