Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680497 | Optical waveguide device | Minoru Seino, Tadao Nakazawa, Takashi Yamane, Yoshinobu Kubota, Kunio Sugeta +1 more | 1997-10-21 |
MD
Masaharu Doi
Overall (1997): #111,226 of 185,788Top 60%
1
Patents 1997