Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9709714 | Curved face diffraction grating fabrication method, curved face diffraction grating cast, and curved face diffraction grating employing same | Takanori Aono, Yoshisada Ebata, Shigeru Matsui, Tetsuya Watanabe | 2017-07-18 |
| 9631924 | Surface profile measurement method and device used therein | Shigeru Matsui | 2017-04-25 |