Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663592 | Semiconductor device having diffraction grating | Mitsuru Ohtsuka, Natsuhiko Mizutani | 1997-09-02 |
SM
Seiichi Miyazawa
Overall (1997): #79,744 of 185,788Top 45%
1
Patents 1997