Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9378917 | Chip-type fuse | Yasushi Yoshida | 2016-06-28 |
| 8081331 | Image forming apparatus | Takuro Sekiya | 2011-12-20 |
| 7072127 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2006-07-04 |
| 6870652 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2005-03-22 |
| 6744545 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2004-06-01 |
| 6400391 | Optical scanning lens, optical scanning device and image forming apparatus | Hiroyuki Suhara, Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi +5 more | 2002-06-04 |
| 4700659 | Developing unit of dry type | Masumi Ikesue | 1987-10-20 |
| 4487501 | Process of exposing photosensitive member | Shigeru Suzuki, Yutaka Koizumi, Nobuyuki Yanagawa, Chikara Imai | 1984-12-11 |
| 4408863 | Transfer medium separating device | Yoshihiro Ogata, Koji Sakamoto, Harumi Takahashi | 1983-10-11 |
| 4389972 | Toner concentration control apparatus | Yasuo Sawada, Kenta Watase, Takeshi Iijima | 1983-06-28 |
| 4369733 | Toner concentration control apparatus | Yasuo Sawada, Kenta Watase, Takahiko Kitamura | 1983-01-25 |
| 4367032 | Electrostatic copying apparatus | Koji Sakamoto, Yoshihiro Ogata, Harumi Takahashi | 1983-01-04 |
| 4268157 | Toner image transfer method and apparatus for electrostatic photography | Yutaka Ebi, Fuyuhiko Matsumoto, Wasaburo Ohta, Satoru Tomita | 1981-05-19 |
| 4266141 | Toner developing ability measuring system for electrostatography | Yasuo Sawada, Kenta Watase | 1981-05-05 |
| 4242434 | Toner composition for multiple copy electrostatic photography | Itsuo Ikeda, Wasaburo Ohta, Zenjiro Okuno | 1980-12-30 |