Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6770411 | Negatively chargeable toner | Minoru Masuda, Yasuo Asahina, Kazuhiko Umemura, Hideki Sugiura, Kohsuke Suzuki +1 more | 2004-08-03 |
| 6757507 | Image formation apparatus using a dry two-component developer for development | Naohito Shimota, Hiroaki Matsuda, Shinichiro Yagi, Tomomi Tamura, Tatsuya Niimi | 2004-06-29 |
| 6703635 | Method and apparatus for measuring the level of liquid using optical fiber strain gauge | Takamasa Yashiro, Takaharu Yoshitomi | 2004-03-09 |
| 6576600 | Detergent | Tetsuo Imai | 2003-06-10 |
| 6541758 | Liquid-level gauge | Takamasa Yashiro, Takaharu Yoshitomi | 2003-04-01 |
| 6500595 | Carrier for electrophotographic developer, method for manufacturing the carrier, and coating liquid for the method | Yasuo Asahina, Kohsuke Suzuki, Tomomi Suzuki | 2002-12-31 |
| 6406826 | Carrier for image developer for electrophotography | Kousuke Suzuki, Yasuo Asahina, Tomomi Suzuki | 2002-06-18 |
| 6356729 | Electrophotographic toner, toner container containing the toner, image forming apparatus using the toner container and method for supplying the toner from the toner container | Tamoe Sasaki | 2002-03-12 |
| 6303258 | Electrophotographic toner and image forming method using the toner | Kohki Katoh, Yasuo Asahina, Tomomi Suzuki | 2001-10-16 |
| 5771426 | Developing device using a toner and carrier mixture | Seiji Oka, Kiyonori Tsuda, Hajime Oyama, Fumihiro Sasaki, Takahisa Kato | 1998-06-23 |
| 5659860 | Developing device for an image forming apparatus and toner cartridge | Fumihiro Sasaki, Hidefumi Gohhara, Megumi Sakakura, Seiji Oka, Hajime Oyama +2 more | 1997-08-19 |
| 5652079 | Carrier for dry two-component developer and method of producing the same | Fumihiro Sasaki, Hidefumi Gohhara, Norio Yokoyama, Yutaka Sakai, Takahisa Kato +3 more | 1997-07-29 |
| 5366129 | Tape cutter | Shinsuke Nakamura, Naoki Hariu | 1994-11-22 |
| 5311630 | Rotary eraser | Shinsuke Nakamura | 1994-05-17 |