Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881005 | Flat type display device | Hiroshi Watanabe, Shigeo Itoh, Yukio Ogawa, Satoshi Uzawa | 1989-11-14 |
| 4879578 | Paper feeding device and a paper guiding device in a copying apparatus | Masahiko Hisajima, Hiroshi Kimura, Yutaka Shigemura, Isao Yada, Yoichiro Irie +1 more | 1989-11-07 |
| 4861013 | Mechanism for preventing the feeding of more than one sheet of paper at one time | Kiyotaka Shibata | 1989-08-29 |
| 4856941 | High density pneumatic transport method for use in powder or granular material and system for practicing the method | Akikazu Iwamoto, Masuo Moriyama, Atsuroh Sonoda | 1989-08-15 |
| 4851325 | Process for producing silver halide color photographic materials comprising a heterocyclic developing agent | Hideaki Naruse | 1989-07-25 |
| 4814833 | Document size detecting device | Tetsuya Matsushita, Kikunosuke Tsuji, Akira Nakakuma, Hideaki Tsudaka, Hiroshi Kobayashi +1 more | 1989-03-21 |
| 4804618 | Method of treating silver halide color photographic material with at least one ferric complex salt of an organic chelating compound | Shinji Ueda | 1989-02-14 |
| 4800153 | Method for processing silver halide color photographic materials and a color photographic developer composition comprising hydroxylamine and stabilizer | Takatoshi Ishikawa | 1989-01-24 |