Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908659 | Image-forming machine having a cover member and comprising engaging means and hampering means for controlling closure of the cover | Yoshifumi Ishii | 1990-03-13 |
| 4860048 | Image forming apparatus | Masahiro Itoh, Yoshihiro Murasawa, Atsushi Takeda, Kimio Nakahata | 1989-08-22 |
| 4719488 | Imaging optical system using distributed index optical elements | Michitaka Setani, Mitsuhiro Tokuhara, Haruhisa Honda | 1988-01-12 |
| 4680669 | Corona discharging apparatus | Kazuki Tanaka, Keishi Osawa | 1987-07-14 |
| 4672505 | Corona discharging device | Kimio Nakahata | 1987-06-09 |
| 4655844 | Process for producing azo pigments | Ryuzo Ueno, Shigeru Itoh, Shine Fujimoto, Yumiko Komatsu | 1987-04-07 |
| 4641944 | Image exposing apparatus | Haruhisa Honda, Michitaka Setani, Mitsuhiro Tokuhara | 1987-02-10 |
| 4585465 | Method for causing bubbles in a fluid to coalesce | Ryushi Suzuki, Joji Yamaga, Kunio Matsui | 1986-04-29 |
| 4530724 | Azo pigments derived from 2-hydroxynaphthalene-3-carboxylic acid or its salts having improved color | Ryuzo Ueno, Shigeru Itoh | 1985-07-23 |
| 4480909 | Potential control on photosensitive member | — | 1984-11-06 |
| 4390351 | Gas-liquid separator | Kunio Matsui, Ryushi Suzuki | 1983-06-28 |
| 4375328 | Electrophotographic device with light quantity control | Yasuhide Kurosaki | 1983-03-01 |
| 4335953 | Variable magnification copying apparatus | Ikuo Soma | 1982-06-22 |
| 4290791 | Gas-liquid separator | Kunio Matsui, Ryushi Suzuki, Takayoshi Omura | 1981-09-22 |
| 4239913 | Process for preparing 2-hydroxynaphthalenecarboxylic acids | Ryuzo Ueno, Yasukazu Muramoto, Yoshihiko Kuwae | 1980-12-16 |