Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4959692 | Developing device with retractable cutoff member | Yuji Hayashi, Katsumi Maeda | 1990-09-25 |
| 4803513 | Toner supplying device | Hideya Nishise, Masaru Imaizumi | 1989-02-07 |
| 4752802 | Magnetic brush type developing apparatus for development of electrostatic latent image | Kouji Ito, Hideya Nishise | 1988-06-21 |
| 4676192 | Dry process developing apparatus | Shizuo Yuge | 1987-06-30 |
| 4623943 | Head positioning apparatus using a DC motor | Yutaka Osada, Hideo Nomura | 1986-11-18 |
| 4603411 | Periodical signal detection circuit within a variable window length | Hiroyuki Sugiyama, Ryozo Abe | 1986-07-29 |
| 4572102 | Method of controlling replenishment of toners | Shizuo Yuge, Tateki Oka, Naoki Toyoshi | 1986-02-25 |
| 4486790 | Drive circuit for feeding a reproducing element across a rotary medium having signals recorded thereon | Hiroyuki Sugiyama, Ryozo Abe | 1984-12-04 |
| 4480280 | Rotary recording medium reproducing apparatus address search | Hiroyuki Sugiyama, Masaki Sakurai, Ryozo Abe, Kenji Yoshihara | 1984-10-30 |
| 4472795 | Periodical signal detection circuit within a variable window length | Hiroyuki Sugiyama, Ryozo Abe | 1984-09-18 |
| 4447517 | Method of developing electrostatic latent images | Shizuo Yuge, Takuma Ishikawa, Nobuo Kito, Toshio Yamamoto | 1984-05-08 |
| 4433402 | Reference signal detection circuit in a rotary recording medium reproducing apparatus | Isami Kaneda, Yasushi Sano | 1984-02-21 |
| 4408312 | Rotary recording medium reproducing apparatus with a tracking control defeating circuit for rapid track access | Hiroyuki Sugiyama, Isami Kaneda, Ryozo Abe, Yasushi Sano | 1983-10-04 |
| 4402070 | Transfer control device for a reproducing transducer in a rotary recording medium reproducing apparatus | Hiroyuki Sugiyama, Isami Kaneda, Ryozo Abe, Yasushi Sano | 1983-08-30 |
| 4376813 | Reversal development method of electrostatic latent image by the use of high-resistivity magnetic toner | Shizuo Yuge, Toshio Yamamoto | 1983-03-15 |