Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324953 | Reduced-projection exposure system with chromatic aberration correction system including diffractive lens such as holographic lens | Yasuhiro Yoshitake, Yoshitada Oshida, Masataka Shiba | 1994-06-28 |