Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5235389 | Replaceable toner cartridge with internal stirring member, and electrophotographic printer employing the same | Hiroshi Kikuchi, Yukio Ota, Yoshitomo Koga, Kazuki Obara, Yoshiharu Momiyama +2 more | 1993-08-10 |
| 5184177 | Electrophotographic printing apparatus | Hiroshi Kikuchi, Shigeki Nakajima, Yoshiharu Momiyama | 1993-02-02 |
| D332962 | Image drum cartridge | Hiroshi Kikuchi, Yoshiharu Momiyama, Shigeki Nakajima | 1993-02-02 |
| 5182343 | Homopolymers of sulfonated isoprene and 1,3-butadiene and agents containing the same | Katsumi Ito, Tatuo Uekawa, Katsuhiro Ishikawa | 1993-01-26 |
| 5078303 | Mechanism for mounting and removing a toner cartridge of a development device | Hiroshi Kikuchi, Kiyoshi Matsuda, Yoshiharu Momiyama | 1992-01-07 |
| D321716 | Toner cartridge | Hiroshi Kikuchi, Yoshiharu Momiyama, Shigeki Nakajima | 1991-11-19 |
| 5055519 | Thermoplastic elastomer compositions and process for the preparation thereof | Masanobu Nagano, Yasuo Ieki, Takumi Miyachi | 1991-10-08 |
| 4987017 | Thermoplastic elastomer composition and Freon gas hose made thereof | Hozumi Sato, Humito Shimada, Akio Sakaguchi, Yasuhiko Takemura, Tadaaki Nishi +2 more | 1991-01-22 |
| 4954125 | Catalyst for polymerization of conjugated diene and process for producing conjugated diene polymer | Ryuji Sato, Takumi Miyachi | 1990-09-04 |
| 4940222 | Paper feed device and paper cassette therefor | Mikihiko Maeno, Yukio Ohta, Yoshiharu Momiyama, Katsumasa Takahata, Kazuyuki Ozono +2 more | 1990-07-10 |
| 4874159 | Paper feed device and paper cassette therefor | Mikihiko Maeno, Yukio Ohta, Yoshiharu Momiyama, Katsumasa Takahata, Kazuyuki Ozono +2 more | 1989-10-17 |
| 4742137 | Polymer particles and process for producing the same | Nobuyuki Ito, Kiyoshi Kasai, Nobuo Sakurai, Eitaro Okuya | 1988-05-03 |
| 4588782 | Diene polymers and process for producing the same | Fumio Tsutsumi, Mitsuhiko Sakakibara, Eitaro Okuya | 1986-05-13 |