Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6727508 | Method and apparatus for irradiating active energy ray | Hiroshi Tominaga, Akihiko Kizaki, Kunihiko Ozaki | 2004-04-27 |
| 5317063 | Water-soluble polymer sensitive to salt | Masanori Komatsu | 1994-05-31 |
| 4690882 | Positive acting resist material comprised of novoloc resin derived from phenylphenol | Katsumi Tanigaki | 1987-09-01 |
| 4356223 | Semiconductor device having a registration mark for use in an exposure technique for micro-fine working | Katumi Suzuki, Nobuhiro Endo | 1982-10-26 |