Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873610 | Dielectric articles and condensers using the same | Norio Kaneko | 1989-10-10 |
| 4833507 | Electron emission device | Takeo Tsukamoto, Akira Suzuki, Masao Sugata, Isamu Shimoda, Masahiko Okunuki | 1989-05-23 |
| 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, Hidetoshi Nojiri, Toshitami Hara, Yoshinobu Sekiguchi, Isao Hakamada | 1989-05-09 |
| 4825082 | Electron emitting apparatus | Masahiko Okunuki, Takeo Tsukamoto, Akira Suzuki, Masao Sugata, Isamu Shimoda | 1989-04-25 |
| 4810934 | Electron emission device | Isamu Shimoda, Takeo Tsukamoto, Akira Suzuki, Masao Sugata, Masahiko Okunuki | 1989-03-07 |
| 4796067 | Semiconductor device having a superlattice structure | Toshitami Hara, Hidetoshi Nojiri, Isao Hakamada, Seiichi Miyazawa, Yoshinobu Sekiguchi | 1989-01-03 |