Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828644 | Etching device for semiconductor wafers | Masahi Nakamura | 1989-05-09 |
| 4829534 | Semiconductor laser device having a semiconductor region for creating a depletion layer in a laser active layer for controlling current flow therethrough | Seiichi Miyazawa, Toshitami Hara, Akira Shimizu, Yoshinobu Sekiguchi, Isao Hakamada | 1989-05-09 |
| 4815027 | Optical operation apparatus for effecting parallel signal processing by detecting light transmitted through a filter in the form of a matrix | Jun Tokumitsu, Kenji Saito, Yuichi Handa, Nobuyoshi Tanaka | 1989-03-21 |
| 4799229 | Semiconductor laser array | Seiichi Miyazawa, Toshitami Hara, Yoshinobu Sekiguchi, Mitsutoshi Hasegawa, Sotomitsu Ikeda | 1989-01-17 |
| 4796067 | Semiconductor device having a superlattice structure | Akira Shimizu, Toshitami Hara, Isao Hakamada, Seiichi Miyazawa, Yoshinobu Sekiguchi | 1989-01-03 |
| 4794609 | Semiconductor laser provided with a plurality of lasers in the form of an array | Toshitami Hara, Seiichi Miyazawa, Akira Shimizu, Yoshinobu Sekiguchi, Isao Hakamada | 1988-12-27 |
| 4794611 | Semiconductor laser having superlattice structure | Toshitami Hara, Yoshinobu Sekiguchi, Seiichi Miyazawa, Akira Shimizu, Isao Hakamada | 1988-12-27 |
| 4706254 | Semiconductor device and its fabrication | Seiichi Miyazawa, Isao Hakamada, Yoshioki Hajimoto | 1987-11-10 |
| 4640585 | Semiconductor thin film lens | — | 1987-02-03 |
| 4553317 | Method of obtaining an impact ionization coefficient rate by junction of different kinds of semiconductors | Hiroyuki Sakaki, Tomonori Tanoue | 1985-11-19 |