Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876173 | Photopolymerizable composition on polyethylene terephthalate film support | Kazuo Maemoto, Masayuki Iwasaki, Minoru Maeda | 1989-10-24 |
| 4842986 | Positively working resist material | Nobuaki Matsuda, Tadayoshi Kokubo, Toshiaki Aoai, Akira Umehara | 1989-06-27 |
| 4837128 | Light-sensitive composition | Kouichi Kawamma, Yukio Abe, Tatsuji Higashi | 1989-06-06 |