Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812551 | Novolak resin for positive photoresist | Fumio Oi, Haruyoshi Osaki, Akihiro Furuta, Takao Ninomiya, Yasunori Uetani +1 more | 1989-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812551 | Novolak resin for positive photoresist | Fumio Oi, Haruyoshi Osaki, Akihiro Furuta, Takao Ninomiya, Yasunori Uetani +1 more | 1989-03-14 |