Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7554733 | Diffractive optical element and method for manufacturing same | — | 2009-06-30 |
| 7042642 | Diffractive optical element | Kenzaburo Suzuki | 2006-05-09 |
| 5739898 | Exposure method and apparatus | Toshihiko Ozawa, Masaya Komatsu, Masato Shibuya, Hiroshi Ooki, Masaomi Kameyama | 1998-04-14 |