Issued Patents All Time
Showing 151–164 of 164 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248949 | Method for stabilizing organic substrate materials including photographic dye images against the action of light and a photographic material so stabilized | Kotaro Nakamura, Yoshiaki Suzuki | 1981-02-03 |
| 4246329 | Method for improving the light fastness of organic substrate materials including photographic dye images | Kotaro Nakamura, Yoshiaki Suzuki | 1981-01-20 |
| 4246330 | Stabilization of organic substrate materials including photographic dye images against the action of light | Kotaro Nakamura, Yoshiaki Suzuki | 1981-01-20 |
| 4245018 | Method for stabilizing organic substrate materials including photographic dye images to light and a color diffusion transfer material | Kotaro Nakamura, Yoshiaki Suzuki | 1981-01-13 |
| 4242431 | Method for stabilizing organic substrate materials including photographic dye images to light and a photographic material so stabilized | Kotaro Nakamura, Yoshiaki Suzuki | 1980-12-30 |
| 4242429 | Method of stabilizing organic substrate materials against light | Yoshiaki Suzuki | 1980-12-30 |
| 4242430 | Method for stabilizing organic substrate materials including photographic dye images against light | Kotaro Nakamura, Yoshiaki Suzuki | 1980-12-30 |
| 4241154 | Method of stabilizing organic substrates against the action of light | Yoshiaki Suzuki | 1980-12-23 |
| 4241155 | Method for stabilizing organic substrates including photographic dye images against light | Kotaro Nakamura, Yoshiaki Suzuki, Shigeru Oono | 1980-12-23 |
| 4239843 | Method of stabilizing organic substrates against the action of light | Yoshiaki Suzuki | 1980-12-16 |
| 4234305 | Transfer sheet guiding device | Hiroyuki Miyake, Kazumi Umezawa, Hiroshi Ogawa, Hitotoshi Kishi, Seiji Sagara | 1980-11-18 |
| 4233474 | Telephone transmitter amplifier | Esao Hishinuma, Akinobu Tomimori | 1980-11-11 |
| 4205622 | Electrophotographic developing apparatus having developer and refreshing rollers for liquid developers | Hiroyuki Miyake, Hiroshi Ogawa, Hirotoshi Kishi, Kazumi Umezawa, Seiji Sagara | 1980-06-03 |
| 4191576 | Light-sensitive silver halide photographic element containing UV absorber | Yoshiharu Fuseya, Atsuo Inoue, Tadashi Ikeda | 1980-03-04 |