Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6433940 | Zoom optical system | Masashi Hankawa, Kazuteru Kawamura | 2002-08-13 |
| 6411443 | Zoom optical system | Shigeru Kato, Seiji Shimizu | 2002-06-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6433940 | Zoom optical system | Masashi Hankawa, Kazuteru Kawamura | 2002-08-13 |
| 6411443 | Zoom optical system | Shigeru Kato, Seiji Shimizu | 2002-06-25 |