Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691396 | Polysiloxane compounds and positive resist compositions | Katsuya Takemura, Osamu Watanabe, Toshinobu Ishihara | 1997-11-25 |
| 5612170 | Positive resist composition | Katsuya Takemura, Toshinobu Ishihara, Akinobu Tanaka, Yoshio Kawai, Jiro Nakamura | 1997-03-18 |