Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128231 | Negative photoresist composition comprising a photosensitizer of a polyhalogen compound | Toshio Itoh, Miwa Sakata, Yoshio Yamashita, Takateru Asano, Hiroshi Umehara | 1992-07-07 |