Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831402 | Camera with changeable focal length | Yoshihiro Fujita, Takao Umetsu, Minoru Takahashi | 1989-05-16 |
YM
Ysuyoshi Masaoka
Overall (All Time): #3,928,063 of 4,157,543Top 95%
1
Patents All Time