Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838665 | Temperature-compensated lens system | Takayuki Yoshioka | 1989-06-13 |
SH
Shinichi Hasegawa
Overall (1989): #57,924 of 140,708Top 45%
1
Patents 1989