Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5629118 | Toner for use in developing electrostatic images | Noriyoshi Tarumi, Masayuki Sato | 1997-05-13 |
| 5629123 | Toners for use in developing electrostatic images | Noriyoshi Tarumi, Masayuki Sato | 1997-05-13 |
| 5023158 | Toner for use in developing electrostatic images | Noriyoshi Tarumi, Masayuki Sato | 1991-06-11 |
| 5004666 | Toner for use in developing electrostatic images | Noriyoshi Tarumi, Masayuki Sato | 1991-04-02 |
| 4997739 | Toner for use in developing electrostatic images | Noriyoshi Tarumi, Masayuki Sato | 1991-03-05 |
| 4988598 | Toner for use in developing electrostatic images | Noriyoshi Tarumi, Masayuki Sato | 1991-01-29 |
| 4968574 | Toner for electrophotography | Hideaki Morita, Takahira Kasuya, Goichi Yamakawa, Hirozo Funaki, Minoru Kohara | 1990-11-06 |
| 4921771 | Toner for use in developing electrostatic images containing polypropylene | Noriyoshi Tarumi, Masayuki Sato | 1990-05-01 |
| 4917982 | Toner for use in developing electrostatic images containing polypropylene | Noriyoshi Tarumi, Masayuki Sato | 1990-04-17 |
| 4792512 | Method of developing electrostatic images using two component developer and AC charging | Satoshi Haneda, Takashi Itoh, Ken Nakamura | 1988-12-20 |
| 4675267 | Method of developing electrostatic images using two component developer and AC charging | Satoshi Haneda, Takashi Itoh, Ken Nakamura | 1987-06-23 |
| 4657837 | Toner for developing an electrostatically charged image | Hideaki Morita, Takahira Kasuya, Goichi Yamakawa, Shinichiro Yasuda | 1987-04-14 |
| 4624559 | Developing method for electrostatic latent image | Satoshi Haneda, Masahiko Itaya | 1986-11-25 |
| 4623604 | Triboelectric stabilized toner for developing electrically charged images and a method for the production thereof | Hiroyuki Takagiwa, Kenzi Thuzita, Goichi Yamakawa, Saburo Wakimoto, Sadayasu Miyahara +3 more | 1986-11-18 |
| 4564573 | Electrostatic image forming toner | Hideaki Morita, Takahira Kasuya, Goichi Yamakawa, Isao Furuta, Minoru Tsuneyoshi | 1986-01-14 |
| 4553500 | Apparatus and method for developing electrostatic latent image | Masahiko Itaya, Satoshi Haneda | 1985-11-19 |
| 4543311 | Toner image pressure fixing method | Hiroyuki Takagiwa, Syunji Matsuo | 1985-09-24 |
| 4530595 | Toner cleaning method and apparatus in which voltage is impressed between electrostatic image holder and a film member | Masahiko Itaya, Satoshi Haneda, Noriyoshi Tarumi | 1985-07-23 |
| 4525056 | Developing means for electrostatic latent image | Masahiko Itaya, Satoshi Haneda | 1985-06-25 |
| 4518674 | Developing material for electrophotography, process for preparation | Shotaro Watanabe, Goichi Yamakawa, Takeo Nishimura, Nobuo Takahashi | 1985-05-21 |
| 4499169 | Developing method | Satoshi Haneda, Masahiko Itaya | 1985-02-12 |
| 4491083 | Means for developing an electrostatic latent image | Masahiko Itaya, Satoshi Haneda | 1985-01-01 |
| 4486524 | Toner for developing electrostatic latent images comprising a resin having specified molecular weight parameters | Yasuyuki Fujisaki, Minoru Takahashi, Hiroshi Ogawara, Hirozo Funaki, Ryubun Seimaya +2 more | 1984-12-04 |
| 4480911 | Developing apparatus and a developing method of an electrostatic image | Masahiko Itaya, Satoshi Haneda | 1984-11-06 |
| 4477174 | Developing device | Satoshi Haneda, Masahiko Itaya | 1984-10-16 |