AA

Akiyasu Amita

Ricoh Company: 47 patents #255 of 9,818Top 3%
Overall (All Time): #59,850 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDate
12326680 Fixing device and image forming apparatus incorporating the same 2025-06-10
11809107 Fixing device and image forming apparatus incorporating same Tetsuo Tokuda, Fumihiro Hirose, Daisuke Arai 2023-11-07
11550246 Image forming apparatus Tetsuo Tokuda, Masateru Ujiie, Fumihiro Hirose, Daisuke Arai 2023-01-10
11150583 Belt device and image forming apparatus incorporating same Fumihiro Hirose, Masateru Ujiie, Tetsuo Tokuda 2021-10-19
11099506 Sheet conveying device, fixing device incorporating the sheet conveying device, and image forming apparatus incorporating the sheet conveying device Fumihiro Hirose, Naoto Suzuki, Yohhei Watanabe, Masateru Ujiie, Shinichi Namekata +2 more 2021-08-24
10488796 Fixing device controller, image forming apparatus, fixing device control method, and non-transitory computer-readable recording medium storing fixing device control program Teppei Kawata, Shinichi Namekata, Masateru Ujiie, Yohhei Watanabe, Fumihiro Hirose +1 more 2019-11-26
10234798 Fixing device and image forming apparatus incorporating same Yohhei Watanabe, Naoto Suzuki, Shinichi Namekata, Takashi Sakamaki, Teppei Kawata +2 more 2019-03-19
10191423 Image forming apparatus including a fixing device Ryohhei Sugiyama, Hironori Yamaoka, Takashi Sakamaki, Tetsuo Tokuda, Shinichi Namekata +4 more 2019-01-29
9715201 Fixing device and image forming apparatus including a rotation load applicator Takamasa Hase, Takashi Fujita, Seiji Saitoh, Kenji Ishii, Kenichi Hasegawa +4 more 2017-07-25
9229412 Gloss applier and image forming apparatus incorporating same Hiroyuki Kunii 2016-01-05
9213295 Glossing device and image forming apparatus incorporating same Hiroyuki Shimada 2015-12-15
9195201 Gloss applicator and image forming apparatus including the gloss applicator Hiroyuki Shimada 2015-11-24
9046841 Gloss applicator and image forming apparatus including same Hiroyuki Shimada 2015-06-02
8913941 Gloss applicator and image forming apparatus including same Hiroyuki Shimada 2014-12-16
8892015 Fixing device and image forming apparatus incorporating same Hiroyuki Kunii 2014-11-18
8849172 Glossing device, fixing device, and image forming apparatus incorporating same Hiroyuki Kunii, Kunihiko Tomita, Satoshi Muramatsu 2014-09-30
8774692 Fixing device and image forming apparatus incorporating same Satoshi Muramatsu, Kunihiko Tomita, Hiroyuki Kunii 2014-07-08
8755730 Glossing device and image forming apparatus incorporating same Hiroyuki Kunii, Satoshi Muramatsu, Kunihiko Tomita 2014-06-17
8724178 Image forming apparatus Hiroyuki Kunii, Shuntaroh Tamaki 2014-05-13
8688021 Glossing device, fixing device, and image forming apparatus incorporating same Hiroyuki Kunii, Satoshi Muramatsu, Kunihiko Tomita 2014-04-01
8655253 Glossing device and image forming apparatus incorporating same Hiroyuki Kunii 2014-02-18
8401452 Fixing device with gloss control unit and image forming apparatus Hiroyuki Kunii, Shuntaroh Tamaki 2013-03-19
8331839 Gloss applicator and image forming apparatus Hiroyuki Kunii, Shuntaroh Tamaki 2012-12-11
8131198 Image forming apparatus, fixing unit, and image forming method with improved heating mechanism Kenji Ishii, Keizo Yasuda, Kenichi Hasegawa, Yasuhiro Kohira, Yasutada Tsukioka +2 more 2012-03-06
7957663 Heater, fixing unit and image forming apparatus Kazuhito Kishi, Yasuhisa Kato, Masami Okamoto, Yasutada Tsukioka, Hiromasa Takagi +1 more 2011-06-07