Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11150578 | Developing device having air discharge duct and image forming apparatus including the developing device | Minoru Wada, Yuji Kamiyama, Yu Sasaki, Yukari Ota, Ryo Yamada | 2021-10-19 |
| 11112730 | Developing device allowing selection of a stirring/conveying member to be used from a plurality of types of stirring/conveying members with rotary shafts with different shaft-diameters and image forming apparatus therewith | Ryo Yamada, Yuji Kamiyama, Yu Sasaki | 2021-09-07 |
| 10698359 | Image forming apparatus and image forming method | Toshiki Fujita, Masahito Ishino, Nariaki Tanaka, Kiyotaka Kobayashi | 2020-06-30 |
| 10018942 | Developing device and image forming apparatus | — | 2018-07-10 |
| 10012926 | Developing device with spaces between toner supply port and development housing disposed to prevent aggregation of toner and image forming apparatus provided with same | Takahisa Nakaue | 2018-07-03 |
| 9513579 | Developer replenishing apparatus including container having moving wall | Hiroyuki Hamakawa | 2016-12-06 |
| 9261819 | Developer supply device and image forming apparatus provided with same | — | 2016-02-16 |
| 9235162 | Developer storage container and image forming apparatus with same | Kenichi Tamaki, Minoru Wada, Shizuka Okada, Tamotsu Shimizu | 2016-01-12 |
| 9063468 | Developing device and image forming apparatus provided therewith | Minoru Wada, Takahisa Nakaue, Tamotsu Shimizu, Kenichi Tamaki, Takefumi Yotsutsuji +1 more | 2015-06-23 |
| 8989634 | Developer case that suppresses clogging due to developer, developer replenishment unit having the same, and image forming apparatus having the same | Kenichi Tamaki, Takahisa Nakaue, Tamotsu Shimizu, Eiji Nimura, Koji Kuramashi +2 more | 2015-03-24 |
| 8942600 | Developing apparatus and image forming apparatus | Takahisa Nakaue, Tamotsu Shimizu, Kenichi Tamaki, Minoru Wada, Takefumi Yotsutsuji +1 more | 2015-01-27 |
| 8666292 | Developer case and image forming apparatus to which developer case is applied | Tamotsu Shimizu, Takahisa Nakaue, Teruhiko Nagashima, Takashi Morita, Eiji Nimura +4 more | 2014-03-04 |
| 8532539 | Image forming apparatus | Hideya Muramoto, Hirohisa Endou, Eiji Nimura, Masaki Hayashi, Yoshihiro Yamagishi | 2013-09-10 |
| 8406661 | Developing device and image forming apparatus provided therewith | Yoshihiro Yamagishi, Eiji Nimura, Takahisa Nakaue, Masaki Hayashi, Koji Kuramashi +1 more | 2013-03-26 |
| 5995799 | Image forming machine toner replenishing device capable of agitating the toner to avoid toner stagnation | Takashi Nagashima, Ryoji Nishimura, Satoru Yonemoto, Toshinori Nishimura | 1999-11-30 |
| 5893010 | Toner density controlling method and apparatus | Takashi Nagashima, Satoru Yonemoto, Toshinori Nishimura, Ryoji Nishimura | 1999-04-06 |
| 5746505 | Electrical conductor for an optical system | Junichi Hirobe, Yukihiro Aikawa, Tsutomu Sugaya, Hiroyuki Sadamori | 1998-05-05 |
| 5438390 | Image forming apparatus having monocoque housing structure including unitary toner collecting vessel | Masahiko Kobayashi, Masakatsu Akashi, Junichi Hirobe, Tsutomu Sugaya, Yoshihisa Tanaka +4 more | 1995-08-01 |
| 5425481 | Toner cartridge | Toshiaki Kusuda, Eiji Okamoto, Yoshihisa Tanaka, Kazuya Kamidaira | 1995-06-20 |
| 5400119 | Image forming apparatus | Toshiaki Kusuda, Yoshihisa Tanaka, Yukihiro Aikawa, Satoshi Ishii | 1995-03-21 |