Issued Patents All Time
Showing 1–25 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11506995 | Developing device and image forming apparatus | Tomoyuki Yoshii, Norihiro TAMAZAWA, Yoshifumi Ozaki | 2022-11-22 |
| 11181854 | Image forming apparatus | Kaori Hemmi, Koichi Kato, Kimiharu Yamazaki, Kazuyoshi Fushinobu, Shunsuke Kawasaki | 2021-11-23 |
| 10996588 | Powder transport apparatus | Masanori Kato, Yoshifumi Ozaki, Tomoyuki Yoshii, Yoshitaka Nakajima, Norihiro TAMAZAWA +2 more | 2021-05-04 |
| 10921733 | Developing device and image forming apparatus having developer replenishing blade | Norihiro TAMAZAWA, Yoshifumi Ozaki, Yoshitaka Nakajima, Tomoyuki Yoshii | 2021-02-16 |
| 10908528 | Developing device and image forming apparatus | Yoshitaka Nakajima, Tomoyuki Yoshii, Norihiro TAMAZAWA, Yoshifumi Ozaki, Masanori Kato | 2021-02-02 |
| 10877400 | Developing device and image forming apparatus | Yoshifumi Ozaki, Yoshitaka Nakajima, Norihiro TAMAZAWA, Tomoyuki Yoshii | 2020-12-29 |
| 10739699 | Developing device having a delivery unit to transport collected developer and image forming apparatus having the same | Masanori Kato, Yoshifumi Ozaki, Tomoyuki Yoshii, Yoshitaka Nakajima, Norihiro TAMAZAWA | 2020-08-11 |
| 10613454 | Developing device and image forming apparatus with exhaust port for discharging air | Ayumi Noguchi, Norihiro TAMAZAWA, Yoshitaka Nakajima, Tomoyuki Yoshii, Masanori Kato +1 more | 2020-04-07 |
| 10496012 | Developing device and image forming apparatus | Ayumi Noguchi | 2019-12-03 |
| 10496010 | Developing device and image forming apparatus | Ayumi Noguchi | 2019-12-03 |
| 10162284 | Developing device and image forming apparatus | Yoshitaka Nakajima, Ayumi Noguchi | 2018-12-25 |
| 10088771 | Developing device and image forming apparatus | — | 2018-10-02 |
| 9804524 | Developing device and image forming apparatus | Yoshifumi Ozaki, Ryota Tomishi, Junichi Uchiyama, Yoshitaka Nakajima, Norihiro TAMAZAWA | 2017-10-31 |
| 9733590 | Developing device and image forming apparatus including the same | Shigemi Murata, Yoshitaka Nakajima, Ryota Tomishi | 2017-08-15 |
| 9423721 | Developing device, visible-image-forming device, and image forming apparatus | Shigemi Murata, Yoshitaka Nakajima, Ryota Tomishi, Shigeru Inaba | 2016-08-23 |
| 9244376 | Developing device | Yasutomo Ishii, Ryota Tomishi, Shinji Okuyama | 2016-01-26 |
| 9195168 | Developing device and image forming apparatus | Yasutomo Ishii, Hiroaki Okuma, Ryota Tomishi, Shinji Okuyama, Kiyohito HORII +3 more | 2015-11-24 |
| 8923733 | Developer supplying device and image forming apparatus | Satoru Yugeta, Hirokazu Murase | 2014-12-30 |
| 8811863 | Developing device and image forming apparatus | Takashi Ochi, Shota Oba, Shigeru Inaba, Yoshitaka Nakajima | 2014-08-19 |
| 8660470 | Developing device and image forming apparatus including the same | Yoichi Watanabe, Makoto Hirota, Tomoyuki Yoshii, Jun Abe, Yasuaki Watanabe +1 more | 2014-02-25 |
| 8594536 | Developing unit and image-forming apparatus | Taichi Yamada, Masahiro Uchida, Mutsumi Kikuchi | 2013-11-26 |
| 8548364 | Developing device and image-forming apparatus | Shota Oba, Shigeru Inaba, Takashi Yamamuro, Takashi Ochi | 2013-10-01 |
| 8447216 | Development unit, image forming apparatus, and gap adjusting method | Shota Oba, Shigeru Inaba, Takashi Ochi, Yoshitaka Nakajima | 2013-05-21 |
| 8178273 | Carrier and manufacturing method thereof, developer, process cartridge, image forming apparatus, and image forming method | Ryota Inoue, Chiaki Tanaka | 2012-05-15 |
| 8034521 | Toner for developing electrostatic charge image, image forming method and image forming apparatus | Shinji Ohtani | 2011-10-11 |