Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6608061 | Bisaryl compound and medicament for cancer treatment comprising the same | Yoshiyuki Yonetani, Takeshi Takahashi, Yuko Kanda, Tamio Mizukami, Tatsuya Tamaoki +8 more | 2003-08-19 |
| 5827796 | Thermal recording material | Ken Iwakura, Takekatsu Sugiyama, Akira Igarashi | 1998-10-27 |
| 5514518 | Method of improving delamination in an image forming material utilizing 2-diazo-1,2-quinone compounds having fluorine containing substituent groups | Kan Wakamatsu, Yuichi Wakata, Tomizo Namiki | 1996-05-07 |
| 5424164 | Image forming method | Ken Iwakura, Akira Igarashi | 1995-06-13 |
| 5420094 | Recording material | Katsumi Araki, Masanobu Takashima, Shunsaku Higashi | 1995-05-30 |
| 5384227 | Image forming materials prepared using 2-diazo-1,2-naphthoquinone compounds having fluorine atom containing substituent groups | Kan Wakamatsu, Yuichi Wakata, Tomizo Namiki | 1995-01-24 |
| 5334749 | Polymerizable phenol compound | Yuuichi Fukushige, Ken Iwakura | 1994-08-02 |
| 5312905 | 2-diazo-1,2-naphthoquinone compounds | Kan Wakamatsu, Yuichi Wakata, Tomizo Namiki | 1994-05-17 |
| 5235096 | Hydroxybenzenesulfone compound having a polymerizable group and process for producing the same | Yuuichi Fukushige | 1993-08-10 |
| 4994431 | Heat-sensitive recording material | Ken Iwakura, Naoto Yanagihara, Takayuki Hayashi | 1991-02-19 |
| 4990482 | Heat-sensitive recording material | Kazunori Nigorikawa, Mitsuyuki Tsurumi | 1991-02-05 |
| 4942107 | Image-forming material and image recording method using the same | Keiso Saeki, Tosiaki Endo, Fumiaki Shinozaki | 1990-07-17 |
| 4920091 | Recording material | Ken Iwakura, Shojiro Sano, Koreshige Ito, Katsumi Matsuoka | 1990-04-24 |
| 4918047 | Heat-sensitive recording material | Kensuke Ikeda, Ken Iwakura | 1990-04-17 |
| 4914219 | Process for preparing zinc salt of salicylic acid compound | Ken Iwakura | 1990-04-03 |
| 4914213 | Indole derivatives and process for producing the same | — | 1990-04-03 |
| 4895826 | Heat-sensitive recording material with diazonium salt and coupler precursor with ester or urethane group | Katsuhiko Watanabe, Takayuki Hayashi, Hiroshi Kamikawa, Takekatsu Sugiyama | 1990-01-23 |
| 4891297 | Heat-sensitive diazo recording material with thiohydroquinone | Masanobu Takashima, Ken Iwakura, Kimio Ichikawa | 1990-01-02 |
| 4855278 | Heat-sensitive recording material | Akira Igarashi, Ken Iwakura | 1989-08-08 |
| 4855282 | Recording material and method for producing the same | Ken Iwakura, Masanobu Takashima, Akira Igarashi | 1989-08-08 |
| 4847236 | Recording material | Ken Iwakura, Akira Igarashi | 1989-07-11 |
| 4835133 | Recording material | Naoto Yanagihara, Kensuke Ikeda, Yuichi Wakata, Ken Iwakura | 1989-05-30 |
| 4808566 | Recording material | Masanobu Takashima, Ken Iwakura, Katsumi Matsuoka | 1989-02-28 |
| 4800193 | Recording material | Keiso Saeki, Masanobu Takashima, Ken Iwakura, Takekatsu Sugiyama | 1989-01-24 |
| 4792542 | Recording material | Masanobu Takashima, Ken Iwakura, Akira Igarashi | 1988-12-20 |