Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5219700 | Photosensitive composition containing 1,2-naphthoquinone-2-diazido-4-sulfonic acid ester, alkali-soluble resin, halomethyloxadiazole compound and a dye | Hideyuki Nakai, Hiroshi Tomiyasu, Yoshiko Fujita | 1993-06-15 |
| 5182183 | Positive photosensitive planographic printing plates containing specific high-molecular weight compound and photosensitive ester of O-napthoquinonediazidosulfonic acid with polyhydroxybenzophenone | Hiroshi Tomiyasu, Yoshiko Kobayashi, Takeshi Yamamoto, Hideyuki Nakai | 1993-01-26 |
| 5110710 | Light-sensitive lithographic printing plate wherein the support is treated with an aqueous solution containing nitrites | Yasuji Tomita, Hideyuki Nakai | 1992-05-05 |
| 4912013 | Photosensitive diazo composition and photosensitive diazo lithographic printing plate with metal complex dyes and color changing agent | Norihito Suzuki, Yoshihiro Maeda, Shigeki Shimizu | 1990-03-27 |
| 4840869 | Light-sensitive composition | Noriyasu Kita | 1989-06-20 |
| 4731316 | Photosensitive composition | Hiroshi Tomiyasu, Yoshihiro Maeda, Norihito Suzuki | 1988-03-15 |
| 4504567 | Light-sensitive lithographic printing plate | Takeshi Yamamoto | 1985-03-12 |
| 4477553 | Photosensitive compositions | Takeshi Yamamoto, Masafumi Uehara | 1984-10-16 |
| 4467027 | Process of developing posi-type lithographic printing plate with inorganic alkali solution | Takeshi Yamamoto, Yoshio Kurita, Noriyasu Kita, Naoshi Kunieda | 1984-08-21 |
| 4467025 | Photosensitive compositions | Hiroh Kawada, Noriyasu Kita | 1984-08-21 |
| 4442195 | Photosensitive composition and article with o-quinone diazide and 6-membered cyclic acid-anhydride | Takeshi Yamamoto | 1984-04-10 |
| 4441032 | Converter control apparatus for parallel connected multi-terminal direct current system | Takeichi Sakurai, Hiroo Konishi, Tadao Kawai | 1984-04-03 |
| 4419591 | Multiterminal DC power transmission system | Shoichi Irokawa, Koji Imai, Takeichi Sakurai | 1983-12-06 |
| 4254234 | Ultraviolet light curable coating compositions | — | 1981-03-03 |
| 4233420 | Process for producing curable coating resins | Shozo Tsuchiya, Hideo Hayashi, Makoto Sasaki, Kazuyoshi Ihida | 1980-11-11 |