Issued Patents All Time
Showing 76–86 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170274 | Optical transmitter | Naoki Kuwata | 1992-12-08 |
| 5157756 | Optical waveguide circuit with intersections | — | 1992-10-20 |
| 5074631 | Optical modulator | Hiroshi Hamano, Izumi Amemiya, Takefumi Namiki, Izumi Yokota, Tadashi Okiyama +1 more | 1991-12-24 |
| 5050947 | Optical waveguide control device employing directional coupler on substrate | Hisao Kawashima | 1991-09-24 |
| 4989949 | Arrangement for discriminating whether or not semiconductor laser is functional | Hajime Imai | 1991-02-05 |
| 4983006 | Polarization-independent optical waveguide switch | — | 1991-01-08 |
| 4884278 | Semiconductor laser modulation control system | Takashi Touge, Tadashi Okiyama, Naoki Kuwata, Yasunari Arai | 1989-11-28 |
| 4875087 | Integrated circuit device having strip line structure therein | Akira Miyauchi, Tadashi Okiyama, Hiroo Kitasagami, Masahiro Sugimoto, Haruo Tamada +1 more | 1989-10-17 |
| 4827327 | Integrated circuit device having stacked conductive layers connecting circuit elements therethrough | Akira Miyauchi, Tadashi Okiyama, Hiroo Kitasagami, Masahiro Sugimoto, Haruo Tamada +1 more | 1989-05-02 |
| 4725878 | Semiconductor device | Akira Miyauchi, Tadashi Okiyama, Hiroo Kitasagami, Masahiro Sugimoto, Haruo Tamada +1 more | 1988-02-16 |
| 4495410 | Light receiving automatic gain control circuit | Takatoshi Minami | 1985-01-22 |