Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6372105 | Apparatus for measuring a silver or halogen ion concentration | Hirokazu Saito | 2002-04-16 |
| 5702851 | Method of producing a silver halide photographic emulsion, apparatus for the same, method of measuring a silver or halogen ion concentration and an apparatus for the same | Hirokazu Saito | 1997-12-30 |
| 5584953 | Method of manufacturing a photographic printing paper support | Takahito Miyoshi, Yasuo Nishikawa | 1996-12-17 |
| 5366854 | Photographic printing paper support | Takahito Miyoshi, Yasuo Nishikawa, Takanori Sato | 1994-11-22 |
| 5312682 | Photographic printing paper support | Yasuo Nishikawa, Takahito Miyoshi | 1994-05-17 |
| 4664734 | Process for producing a magnetic recording medium | Tsutomu Okita | 1987-05-12 |
| 4567057 | Method of making magnetic recording medium | Kenichi Masuyama, Toshimitu Okutu, Takahito Miyoshi, Hiroshi Ogawa, Masahiro Utumi +1 more | 1986-01-28 |
| 4499121 | Method of preparing a magnetic recording medium with a calendering treatment | Nobutaka Yamaguchi, Masaaki Fujiyama, Eiichi Tadokoro, Katsumi Ryoke, Masahiro Utsumi +1 more | 1985-02-12 |
| 4234392 | Oil soluble photographic coupler reclamation process | Kazuhiko Yanagihara, Jun Arakawa | 1980-11-18 |
| 4233397 | Process for the preparation of coupler dispersions | Yuzo Inukai | 1980-11-11 |