Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838665 | Temperature-compensated lens system | Shinichi Hasegawa | 1989-06-13 |
TY
Takayuki Yoshioka
Overall (1989): #51,920 of 140,708Top 40%
1
Patents 1989