Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821585 | Ink-jet recording material and ink for ink-jet recording | Koichi Sumioka | 2004-11-23 |
| 6607269 | Ink-jet recording material | Koichi Sumioka, Hiroshi Sakaguchi, Yukihiro Suzuki, Yukio Tokunaga, Masahiro Hanmura +1 more | 2003-08-19 |
| 5437957 | Lithographic printing plate | Motozo Yamano, Akio Yoshida, Hidetoshi Miura | 1995-08-01 |
| 5089366 | Novel hydrazone compound in an electrophotographic receptor | Akira Itoh, Makoto Okaji, Kazuhiro Emoto, Tatsuya Kodera, Kazuchiyo Takaoka | 1992-02-18 |
| 5041349 | Electrophotographic disazo photoreceptor | Kazuhiro Emoto, Akira Itoh, Makoto Okaji | 1991-08-20 |
| 5013623 | Electrophotographic photoreceptor with stilbene compound | Akira Itoh, Makoto Okaji, Kazuhiro Emoto, Tatsuya Kodera | 1991-05-07 |
| 5009976 | Electrophotographic photoreceptor | Akira Itoh | 1991-04-23 |
| 4999269 | Electrophotographic photoreceptor with bisazo compound | Kazuhiro Emoto, Akira Itoh, Makoto Okaji | 1991-03-12 |
| 4913997 | Disazo electrophotographic photoreceptor | Kazuhiro Emoto | 1990-04-03 |
| 4702983 | Electrophotographic photoreceptor comprising bis-azo pigment | Kazuhiro Emoto, Akira Itoh | 1987-10-27 |
| 4687721 | Electrophotographic photoreceptor containing a trisazo compound | Kazuhiro Emoto, Akira Itoh | 1987-08-18 |
| 4631242 | Bisazo electrophotographic sensitive materials with --CF.sub.3 group | Kazuhiro Emoto, Akira Itoh | 1986-12-23 |
| 4567126 | Hydrazone photoconductive materials for electrophotography | Kazuhiro Emoto | 1986-01-28 |
| 4355090 | Method for making a diffusion transfer lithographic printing plates with oxazolidones | Shoji Yamada, Eiji Kanada | 1982-10-19 |
| 4259439 | Direct positive silver halide emulsion | Akira Tanaka, Akio Yoshida | 1981-03-31 |