Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5287422 | Integrated type optical node and optical information system using the same | Hidetoshi Nojiri, Hajime Sakata | 1994-02-15 |
| 5222163 | Integrated type optical node and optical information system using the same | Hidetoshi Nojiri, Hajime Sakata | 1993-06-22 |
| 5109444 | Integrated type optical node and optical information system using the same | Hidetoshi Nojiri, Hajime Sakata | 1992-04-28 |
| 4832428 | Waveguide optical system | Mamoru Miyawaki | 1989-05-23 |