Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5386310 | Parallel optical switching apparatus | Makoto Haneda, Katuaki Chiba | 1995-01-31 |
| 5346626 | Method of removing scale | Katsuhiko Momozaki, Masako Kusunoki, Fumio Kawamura, Hisao Ono, Katsumi Itoh +1 more | 1994-09-13 |
| 4827483 | Semiconductor laser device and method of fabricating the same | Tadashi Fukuzawa, Naoki Chinone, Shin'ichi Nakatsuka, Katsutoshi Saito, Takashi Kajimura | 1989-05-02 |