Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6248497 | Light-sensitive and heat-sensitive recording material | Shojiro Sano | 2001-06-19 |
| 6228553 | Pyrrolo [1,2-A] pyrimidine compound and heat-sensitive recording material using the same | Tetsunori Matsushita, Naoto Yanagihara, Mitsuyuki Tsurumi | 2001-05-08 |
| 6190824 | Photosensitive composition | Yuuichi Fukushige | 2001-02-20 |
| 5925489 | Heat-sensitive recording material | Tatsuo Kawabuchi, Hiroshi Sato, Kimiatsu Nomura | 1999-07-20 |
| 5773186 | Heat-sensitive recording material | — | 1998-06-30 |
| 5691271 | Indolylazaphthalides and recording materials containing the same | Naoto Yanagihara, Kiyoshi Takeuchi, Toyohisa Oya, Naoki Asanuma, Syunsaku Higashi | 1997-11-25 |
| 5480765 | Recording material | Naoto Yanagihara, Masato Shimazaki, Ken Iwakura, Tomohiro Kodama | 1996-01-02 |
| 5420094 | Recording material | Katsumi Araki, Masato Satomura, Shunsaku Higashi | 1995-05-30 |
| 5242886 | Pressure-sensitive recording sheet | Shojiro Sano | 1993-09-07 |
| 4985391 | Heat-sensitive recording material | Kenji Ikeda, Ken Iwakura | 1991-01-15 |
| 4918045 | Recording material | Katsumi Matsuoka, Ken Iwakura, Keiso Saeki | 1990-04-17 |
| 4891297 | Heat-sensitive diazo recording material with thiohydroquinone | Ken Iwakura, Masato Satomura, Kimio Ichikawa | 1990-01-02 |
| 4882311 | Heat-sensitive recording material | Kenji Ikeda, Ken Iwakura | 1989-11-21 |
| 4876233 | Recording material | Keiso Saeki, Shojiro Sano, Katsumi Matsuoka, Ken Iwakura | 1989-10-24 |
| 4870048 | Color developer sheet | Katsumi Matsuoka, Shojiro Sano, Keiso Saeki, Ken Iwakura | 1989-09-26 |
| 4861748 | Recording material | Keiso Saeki, Ken Iwakura | 1989-08-29 |
| 4855282 | Recording material and method for producing the same | Masato Satomura, Ken Iwakura, Akira Igarashi | 1989-08-08 |
| 4808566 | Recording material | Ken Iwakura, Masato Satomura, Katsumi Matsuoka | 1989-02-28 |
| 4803192 | Recording material | Keiso Saeki, Ken Iwakura | 1989-02-07 |
| 4800193 | Recording material | Keiso Saeki, Ken Iwakura, Takekatsu Sugiyama, Masato Satomura | 1989-01-24 |
| 4792542 | Recording material | Masato Satomura, Ken Iwakura, Akira Igarashi | 1988-12-20 |
| 4707464 | Recording material | Masato Satomura, Ken Iwakura, Akira Igarashi | 1987-11-17 |