Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329022 | Two group type zoom lens with wide image angle | Akira Tajima, Keiji Ikemori | 1982-05-11 |
| 4310221 | Variable soft-focus lens | Kikuo Momiyama | 1982-01-12 |
SY
Shin Yamaguchi
Overall (1982): #7,717 of 81,411Top 10%
2
Patents 1982