Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274714 | Method for producing 1,2-naphthoquinone-2-diazide-4-sulfonyl chloride | Hirotada Iida, Naoki Sato, Nobuhiro Yoneyama, Yuki Hotta, Toshio Itahana +1 more | 2001-08-14 |
| 6077941 | Method for producing 1,2-naphthoquinone-2-diazide derivatives | Hirotada Iida, Nobuhiro Yoneyama, Toshio Itahana, Kunihiko Kojima | 2000-06-20 |