Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689746 | Amount-of-light adjusting device | Hiroshi Akada, Hironori Takano, Masahiko Tsuzuki | 1997-11-18 |
TC
Tatsuo Chigira
Overall (1997): #72,815 of 185,788Top 40%
1
Patents 1997