Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992837 | Light emitting semiconductor device | Kazuo Sakai, Kohsuke Nishimura | 1991-02-12 |
| 4837526 | Semiconductor external optical modulator | Masatoshi Suzuki, Yukio Noda, Shigeyuki Akiba | 1989-06-06 |
| 4820655 | Method for manufacturing semiconductor optical integrated device with optical waveguide regions | Yukio Noda, Masatoshi Suzuki, Shigeyuki Akiba | 1989-04-11 |
| 4811352 | Semiconductor integrated light emitting device | Masatoshi Suzuki, Shigeyuki Akiba, Hideaki Tanaka | 1989-03-07 |
| 4811353 | Semiconductor optical modulator | Yukio Noda, Masatoshi Suzuki, Shigeyuki Akiba | 1989-03-07 |
| 4743087 | Optical external modulation semiconductor element | Katsuyuki Utaka, Shigeyuki Akiba, Yukio Noda | 1988-05-10 |
| 4731641 | Avalanche photo diode with quantum well layer | Yuichi Matsushima, Kazuo Sakai, Shigeyuki Akiba, Yukio Noda, Katsuyuki Utaka | 1988-03-15 |
| 4720835 | Integrated semiconductor light emitting element with oscillation wavelength and phase modulated light output | Shigeyuki Akiba, Katsuyuki Utaka, Yukio Noda | 1988-01-19 |
| 4456998 | Semiconductor laser | Fujio Tanaka, Yasuyuki Okamura, Chuichi Ota, Shigeyuki Akiba | 1984-06-26 |