Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696998 | Optical apparatus equipped with sight line detector | Akira Yamada, Yoshiaki Irie, Akihiko Nagano | 1997-12-09 |
KN
Keiji Nagata
Overall (1997): #119,486 of 185,788Top 65%
1
Patents 1997