Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884859 | Optical attenuator and manufacturing method for making same | Toshiharu Takesue, Naoki Kawawada | 1989-12-05 |
| 4863240 | Apparatus for actuating objective lens | Atsunobu Nakajima, Seiji Hoshi, Chikara Miyata, Ikuo Nanno, Shigeru Inagaki +1 more | 1989-09-05 |