Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5204211 | Image receiver element for use in silver salt diffusion transfer | Hidetoshi Kobayashi | 1993-04-20 |
| 4853262 | Cover film for microscopy | Masashi Ishiyama, Teiichi Tomizuka | 1989-08-01 |
| 4833063 | Color diffusion transfer element comprising two neutralizing layers and two timing layers | Hideki Tomiyama, Masaki Satake | 1989-05-23 |
| 4267265 | Photographic light-sensitive material | Naohiko Sugimoto, Kameji Nagao, Masakazu Yoneyama, Yasuhiro Nakayama, Nobuo Yamamoto | 1981-05-12 |
| 4264719 | Method for preventing adhesion of silver halide photographic light-sensitive material | Kimitaka Kameoka, Hukuji Sakakibara, Takashi Naoi, Masamichi Shimazaki | 1981-04-28 |
| 4190448 | Diffusion transfer photographic material having a crosslinked carboxylic acid polymer layer | Hidefumi Sera | 1980-02-26 |
| 4190449 | Antiadhesive photographic materials and method of improving antiadhesive property of photographic light-sensitive materials | Takashi Naoi | 1980-02-26 |