Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5393641 | Radiation-sensitive resin composition | Toshio Ito | 1995-02-28 |
| 5128231 | Negative photoresist composition comprising a photosensitizer of a polyhalogen compound | Toshio Itoh, Yoshio Yamashita, Takateru Asano, Yuuzi Kosuga, Hiroshi Umehara | 1992-07-07 |
| 4845143 | Pattern-forming material | Toshio Ito, Yoshio Yamashita, Takateru Asano, Kenji Kobayashi | 1989-07-04 |
| 4826943 | Negative resist material | Toshio Ito, Yoshio Yamashima | 1989-05-02 |