Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924912 | Photosensitive resin composition for sandblast resist | Tetsuo Yamamoto, Hiroyuki Obiya, Ryuma Mizusawa | 1999-07-20 |
| 5916738 | Photosensitive resin composition for sandblast resist | Tetsuo Yamamoto, Hiroyuki Obiya, Ryuma Mizusawa | 1999-06-29 |
| 5756261 | Photosensitive resin composition for sandblast resist | Tetsuo Yamamoto, Hiroyuki Obiya, Ryuma Mizusawa | 1998-05-26 |
| 4966915 | L-dopa derivatives or their acid addition salts, process for producing same and their use | Yoshimi Tsuchiya, Masahiro Hayashi, Akihiro Hisaka, Yoshio Sawasaki, Masaki Ihara | 1990-10-30 |