Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356753 | Positive resist material | Osamu Watanabe, Akinobu Tanaka, Hiroshi Ban, Yoshio Kawai | 1994-10-18 |
| 5314931 | Resist compositions | Tomoyoshi Furihata, Osamu Watanabe, Fujio Yagihashi | 1994-05-24 |