Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7632613 | Levenson type phase shift mask and manufacturing method thereof | Yosuke Kojima, Toshio Konishi, Keishi Tanaka, Jun Sasaki | 2009-12-15 |
| 5196960 | Lenticular lens sheet | Ichiro Matsuzaki, Hiroshi Kuwada, Ken-ichi Abe | 1993-03-23 |