Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863829 | Positive type high gamma-value photoresist composition with novolak resin possessing | Akihiro Furuta, Makoto Hanabata, Seimei Yasui, Osamu Hiroaki | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863829 | Positive type high gamma-value photoresist composition with novolak resin possessing | Akihiro Furuta, Makoto Hanabata, Seimei Yasui, Osamu Hiroaki | 1989-09-05 |