Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602645 | Photosensitive composition and planographic printing plate base using same | Tatsuo Nakamura, Kazuto Kunita | 2003-08-05 |
| 6403283 | Negative working image recording material | Keitaro Aoshima, Fumikazu Kobayashi | 2002-06-11 |
| 6162574 | Image recording material | Fumikazu Kobayashi, Yasuhito Oshima | 2000-12-19 |
| 6017677 | Planographic printing plate | Kazuo Maemoto, Koichi Kawamura, Fumikazu Kobayashi | 2000-01-25 |
| 5840467 | Image recording materials | Keitaro Aoshima, Yuichi Shiraishi, Kazuto Kunita, Hiroaki Yokoya | 1998-11-24 |
| 5741619 | Negative image-recording material comprising an acrylic resin, a diazo compound and carbon black | Keitaro Aoshima, Hiroaki Yokoya, Yuichi Shiraishi | 1998-04-21 |
| 5582952 | Photosensitive lithographic printing plate containing a two-equivalent coupler residue-containing polymer | Koichi Kawamura, Keiji Akiyama, Toshifumi Inno | 1996-12-10 |
| 5521039 | Electrophotographic photosensitive material and printing plate for electrophotographic process | Satoshi Hoshi, Naonori Makino | 1996-05-28 |
| 5518846 | Electrophotographic photoreceptor and electrophotographic printing plate precursor | Satoshi Hoshi, Naonori Makino | 1996-05-21 |
| 5328800 | Color image forming method using silver halide, reducing agent, polymerizable compound and colorant | Hiroaki Yokoya, Keiji Takeda, Osami Tanabe | 1994-07-12 |
| 5326667 | Image forming method and light-sensitive material using silver halide, reducing agent and polymerizable compound | Hiroaki Yokoya, Keiji Takeda, Osami Tanabe | 1994-07-05 |
| 5304454 | Image forming method using silver halide, reducing agent and polymerizable compound | Hiroaki Yokoya, Keiji Takeda, Osami Tanabe | 1994-04-19 |
| 5073465 | Electrophotographic photoreceptor comprising a trisazo charge generating compound | Naonori Makino, Satoshi Hoshi, Shigeru Ohno | 1991-12-17 |
| 5053302 | Electrophotographic photoreceptor containing an azo compound and a charge transporting material | Naonori Makino, Satoshi Hoshi | 1991-10-01 |
| 5019474 | Electrophotographic photoreceptor | Naonori Makino, Shigeru Ohno, Satoshi Hoshi | 1991-05-28 |
| 4985324 | Electrophotographic photoreceptor | Naonori Makino, Satoshi Hoshi, Hideo Sato, Shigeru Ohno | 1991-01-15 |
| 4977051 | Trisazo electrophotographic photoreceptor | Shigeru Ohno, Naonori Makino, Satoshi Hoshi, Hideo Sato | 1990-12-11 |
| 4948688 | Layered electrophotographic photoreceptor comprises bis-azo charge generator compound | Satoshi Hoshi | 1990-08-14 |
| 4734351 | Liquid developer for electrostatic charge image | Hiroaki Yokoya, Syu Watarai | 1988-03-29 |
| 4663260 | Electrophotographic light-sensitive material comprising organic photoconductor and pyrylium sensitizer | Kenji Sano | 1987-05-05 |