Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379863 | Planographic printing plate precursor and a method for producing a planographic printing plate | Hidekazu Oohashi, Koichi Kawamura, Morio Yagihara, Sumiaki Yamasaki | 2002-04-30 |
| 6340554 | Radiation-sensitive planographic printing plate | Koichi Kawamura, Kazuo Maemoto, Sumiaki Yamasaki, Hiroshi Tashiro, Kiyotaka Fukino | 2002-01-22 |
| 6335144 | Photopolymerizable composition for short wavelength semiconductor laser exposure | Yasufumi Murota | 2002-01-01 |
| 6322950 | Photosensitive composition and 1,3-dihydro-1-oxo-2H-indene derivative | Yasubumi Murota, Koichi Kawamura, Kazuto Kunita | 2001-11-27 |
| 6242155 | Method of making lithographic printing plate and photopolymer composition | Sumiaki Yamasaki | 2001-06-05 |
| 6153352 | Planographic printing plate precursor and a method for producing a planographic printing plate | Hidekazu Oohashi, Koichi Kawamura, Morio Yagihara, Sumiaki Yamasaki | 2000-11-28 |
| 6153660 | Photopolymerizable composition | Kazuhiro Fujimaki, Yasuo Okamoto, Kazuo Fujita | 2000-11-28 |
| 6140384 | Photopolymerizable composition containing a sensitizing dye with cyano or substituted carbonyl groups | Yasuo Okamoto | 2000-10-31 |
| 6114083 | Radiation-sensitive planographic printing plate | Koichi Kawamura, Kazuo Maemoto, Sumiaki Yamasaki, Hiroshi Tashiro, Kiyotaka Fukino | 2000-09-05 |
| 6030748 | Photosensitive lithographic printing plate having a layer of a hydrolyzed and polycondensed organometallic compound | Nobuyuki Nishimiya, Tatsuji Higashi | 2000-02-29 |
| 5837748 | Photopolymerizable composition | — | 1998-11-17 |
| 5776996 | Photopolymerizable composition | Yasuo Okamoto | 1998-07-07 |
| 5721288 | Photopolymerizable composition including a photopolymerization initiation system having excellent light sensitivity to visible light | Yoshimasa Aotani | 1998-02-24 |
| 5609992 | Photopolymerizable composition | Yasuo Okamoto, Syunichi Kondo, Hiromichi Kurita | 1997-03-11 |
| 5061592 | Presensitized plate for use in making lithographic printing plates | Masanori Imai | 1991-10-29 |
| 5049481 | Sensitizers for photopolymerizable compositions | Yasuo Okamoto | 1991-09-17 |