Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375009 | Optical isolator device having a wider cutoff wavelength band for a return light beam | Kenichi Koike | 1994-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375009 | Optical isolator device having a wider cutoff wavelength band for a return light beam | Kenichi Koike | 1994-12-20 |