Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5219693 | Printing plate for electrophotographic process comprising trisazo incorporated in an alkali-soluble resin binder | Akio Akao, Seiji Kuwakubo, Takao Soma | 1993-06-15 |
| 5213919 | Process for preparation of lithographic printing plate and eluting solution used for said process containing alkali chelating agent | Seiji Kuwakubo, Akio Akao, Takao Soma | 1993-05-25 |
| 4602866 | Exposure device for platemaking apparatus | Minehiro Sakata, Tamio Iwamoto, Seiichi Honma, Yousuke Igarashi | 1986-07-29 |