Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689746 | Amount-of-light adjusting device | Tatsuo Chigira, Hironori Takano, Masahiko Tsuzuki | 1997-11-18 |
| 5644440 | Optical apparatus | — | 1997-07-01 |
HA
Hiroshi Akada
Overall (1997): #38,683 of 185,788Top 25%
2
Patents 1997