Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889791 | Positive type photoresist material | Nobuo Aoki, Shinichiro Suzuki | 1989-12-26 |
| 4849486 | Polyphenylene ether resin composition | Makoto Sasaki, Yukio Kobayashi | 1989-07-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889791 | Positive type photoresist material | Nobuo Aoki, Shinichiro Suzuki | 1989-12-26 |
| 4849486 | Polyphenylene ether resin composition | Makoto Sasaki, Yukio Kobayashi | 1989-07-18 |