Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680497 | Optical waveguide device | Minoru Seino, Tadao Nakazawa, Takashi Yamane, Yoshinobu Kubota, Masaharu Doi +1 more | 1997-10-21 |
| 5404412 | Optical waveguide device | Minoru Seino, Tadao Nakazawa, Takashi Yamane, Yoshinobu Kubota, Masaharu Doi +1 more | 1995-04-04 |