Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5458979 | Magnetic recording medium having a magnetic layer comprising ferromagnetic particles, polyurethane resin and polyvinylacetal resin | Hiroshi Hashimoto, Yuuichirou Murayama, Tsutomu Okita | 1995-10-17 |
| 4996130 | Silver halide photographic material | Shuzo Suga, Senzo Sasaoka | 1991-02-26 |
| 4985338 | Silver halide photographic material | Minoru Sakai, Kazunobu Katoh, Jiro Yamaguchi, Hisashi Okada, Tomokazu Yasuda | 1991-01-15 |
| 4859576 | Silver halide photographic material comprising a protective layer containing a polyoxyethylene surface active agent | Nobuaki Miyasaka, Shigeki Yokoyama, Shuzo Suga, Takashi Naoi | 1989-08-22 |
| 4833063 | Color diffusion transfer element comprising two neutralizing layers and two timing layers | Hideki Tomiyama, Ikutaro Horie | 1989-05-23 |
| 4797353 | Method for developing of silver halide photographic materials utilizing reduced amounts of organic substances | Sumito Yamada, Hiroshi Kawasaki | 1989-01-10 |
| 4710456 | Silver halide photographic material | Takashi Naoi, Takashi Fujioka, Hisashi Okamura | 1987-12-01 |
| 4551410 | Photographic element for color diffusion transfer with two neutralizing layers | Hideki Tomiyama | 1985-11-05 |