Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4808825 | Fluid analyzer | Kimio Miyatake, Takao Imaki | 1989-02-28 |
| 4807227 | Optical wavelength-division switching system with coherent optical detection system | Minoru Shikada, Kazuhisa Kaede | 1989-02-21 |
| 4798435 | Optical switch circuit | Akira Ajisawa, Shuji Suzuki | 1989-01-17 |
| 4795241 | Device and method for providing optical bistability with free carrier recombination centers introduced into an optical guide surrounding semiconductor layer portion | Keiro Komatsu | 1989-01-03 |