Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323258 | Homodyne optical receiver equipment | Hideaki Tsushima, Ryoji Takeyari, Shigeki Kitajima, Katsuhiko Kuboki | 1994-06-21 |
| 5305134 | Optical frequency division multiplexing transmitter and optical frequency division multiplexing transmission apparatus | Hideaki Tsushima, Shigeki Kitajima, Kiichi Yamashita | 1994-04-19 |