Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7501035 | Method of manufacturing replica diffraction grating | — | 2009-03-10 |
| 7074342 | Method of manufacturing optical crystal element of laser | — | 2006-07-11 |
| 6942812 | Method of manufacturing etalon | Masaru Koeda, Satoshi Irikuchi | 2005-09-13 |
| 6507398 | Czerny-turner spectroscope | Akihiro Arai, Yoshihisa Harada | 2003-01-14 |