Issued Patents All Time
Showing 126–143 of 143 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4499172 | Heat-developable color light-sensitive material with alkyl carboxylic acid base precursor containing triple bond | Hiroyuki Hirai | 1985-02-12 |
| 4483914 | Heat-developable color photographic material | Hideki Naito, Hiroshi Hara | 1984-11-20 |
| 4478927 | Heat-developable color photographic materials | Hideki Naito, Hiroshi Hara, Toshiaki Aono | 1984-10-23 |
| 4474867 | Heat-developable color photographic material | Hideki Naito, Hiroshi Hara, Toshiaki Aono | 1984-10-02 |
| 4473631 | Heat-developable color photographic material | Hiroyuki Hirai, Hideki Naito, Hiroshi Hara | 1984-09-25 |
| 4473632 | Heat-developable color photographic material | Hiroshi Kitaguchi, Shinsaku Fujita, Hideki Naito | 1984-09-25 |
| 4463079 | Heat developable color photographic materials with redox dye releasers | Hideki Naito, Hiroshi Hara | 1984-07-31 |
| 4439513 | Color photographic light-sensitive material with naphthol redox dye releaser | Shinsaku Fujita, Hideki Naito, Hiroshi Hara | 1984-03-27 |
| 4436920 | Image recording members | Ken Iwakura, Akira Igarashi | 1984-03-13 |
| 4433156 | Process for preparing fluoran derivatives | Sadao Ishige, Ken Iwakura | 1984-02-21 |
| 4430415 | Heat-developable photographic material with fine droplets containing silver halide, organic silver salt oxidizing agent and color image forming substance | Toshiaki Aono, Hiroshi Hara, Hideki Naito | 1984-02-07 |
| 4390616 | Image recording members | Ken Iwakura, Akira Igarashi | 1983-06-28 |
| 4341403 | Fluoran compounds, process for preparation thereof, and recording sheets using same | Akira Igarashi, Ken Iwakura | 1982-07-27 |
| 4340643 | Fluid antioxidant | — | 1982-07-20 |
| 4283458 | Heat-sensitive recording paper containing a novel electron accepting compound | Akira Igarashi | 1981-08-11 |
| 4277811 | Static type circuit breaker | — | 1981-07-07 |
| 4269893 | Recording material containing a novel color developer | Hajime Kato, Masato Satomura | 1981-05-26 |
| 4219219 | Developers for pressure-sensitive recording and developing sheets containing them | Hajime Kato | 1980-08-26 |