Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679913 | Vari-focal objective lens of short total length | Yasuhisa Sato, Yasuyuki Yamada, Hiroki Nakayama | 1987-07-14 |
KO
Kouji Oizumu
Overall (All Time): #3,978,373 of 4,157,543Top 100%
1
Patents All Time