Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702861 | Positive photoresist composition | Satoshi Niikura, Takako Suzuki, Hidekatsu Kohara, Toshimasa Nakayama | 1997-12-30 |
| 5601961 | High-sensitivity positive-working photoresist composition | Kazuhiko Nakayama, Taku Nakao, Nobuo Tokutake, Hidekatsu Kohara, Toshimasa Nakayama | 1997-02-11 |