Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210657 | Optical attenuator apparatus without steep level variation | Hiroshi Komazawa, Kenichiro Umesaki, Yuuichi Watanabe, Yoshiharu Sasaki | 1993-05-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210657 | Optical attenuator apparatus without steep level variation | Hiroshi Komazawa, Kenichiro Umesaki, Yuuichi Watanabe, Yoshiharu Sasaki | 1993-05-11 |