Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9346640 | Sheet feeder and image forming apparatus | Hirofumi Horita, Ikuo Fujii, Mizuna Tanaka, Tomoya Tanaka, Toshikane Nishii +3 more | 2016-05-24 |
| 7965952 | Remaining amount of developer detection device, development device, process unit, and image forming apparatus | Hongjie Tan, Junlin Cai, Chuanyi Yang | 2011-06-21 |
| 7254357 | Method and apparatus for image forming capable of effectively regulating a toner layer, developing mechanism for the apparatus, and a process cartridge provided in the apparatus | Nobuhiko Umezawa, Takafumi Miyazaki | 2007-08-07 |
| 6174639 | Positive charging color toner | Takahiro Ishihara, Hiroshi Shimoyama, Toyotsune Inoue, Takashi Nishino, Kazuya Nagao +3 more | 2001-01-16 |
| 6096467 | Positive charging color toner | Takahiro Ishihara, Hiroshi Shimoyama, Toyotsune Inoue, Takashi Nishino, Kazuya Nagao +3 more | 2000-08-01 |
| 5750301 | Toner for a two-component type developer | Masatomi Funato, Seijiro Ishimaru, Norio Kubo, Kazuya Nagao, Terumichi Asano | 1998-05-12 |
| 5580691 | Toner for a two-component type developer | Masatomi Funato, Seijiro Ishimaru, Norio Kubo, Kazuya Nagao, Terumichi Asano | 1996-12-03 |
| 5521045 | Toner for a two-component-type magnetic developing agent having excellent spent resistance | Masatomi Funato, Seijiro Ishimaru, Kazuya Nagao | 1996-05-28 |
| 5500319 | Toner for a two-component-type magnetic developing agent having excellent spent resistance | Masatomi Funato, Seijiro Ishimaru, Kazuya Nagao | 1996-03-19 |
| 5376489 | Two-component developer | Naruo Yabe, Tetsuya Nakano, Masahide Inoue, Teruaki Teratani, Koichi Tsuyama +1 more | 1994-12-27 |
| 5360690 | Two-component developer | Tetsuya Nakano, Mikiko Tamori, Naruo Yabe, Masahide Inoue, Kouichi Tsuyama | 1994-11-01 |
| 5281505 | Toner composition | Masahide Inoue, Tetsuya Nakano, Naruo Yabe, Teruaki Teratani, Koichi Tsuyama +1 more | 1994-01-25 |
| 5275904 | Start developer and method of controlling toner density | Koichi Tsuyama, Masahide Inoue, Tetsuya Nakano | 1994-01-04 |
| 5264311 | Electrophotographic toner | Tetsuya Nakano, Naruo Yabe, Masahide Inoue, Koichi Tsuyama, Mitsushi Kuroki | 1993-11-23 |
| 5240804 | Electrophotographic developer comprising resin coated carrier | Tetsuya Nakano, Naruo Yabe, Masahide Inoue, Teruaki Teratani, Koichi Tsuyama +1 more | 1993-08-31 |
| 5232807 | Electrophotographic developer | Tetsuya Nakano, Naruo Yabe, Masahide Inoue, Teruaki Teratani, Koichi Tsuyama +1 more | 1993-08-03 |
| 5223367 | Start developer | Seijiro Ishimaru, Tetsuya Nakano, Masahide Inoue, Koichi Tsuyama, Teruaki Teratani +1 more | 1993-06-29 |
| 5213935 | Start developer and method of controlling toner density | Koichi Tsuyama, Masahide Inoue, Tetsuya Nakano | 1993-05-25 |
| 5119758 | Developing process | Masahide Inoue, Koichi Tsuyama | 1992-06-09 |
| 5110704 | Toner for developing statically charged images and process for preparation thereof | Masahide Inoue, Tetsuya Nakano, Naruo Yabe, Koichi Tsuyama, Mitsushi Kuroki | 1992-05-05 |
| 5104766 | Toner for developing statically charged images and process for preparation thereof | Tetsuya Nakano, Naruo Yabe, Masahide Inoue, Koichi Tsuyama, Mitsushi Kuroki | 1992-04-14 |
| 5077169 | Toner composition and a method for preparing the same | Masahide Inoue, Koichi Tsuyama | 1991-12-31 |