IF

Ippei Fujimoto

Ricoh Company: 120 patents #18 of 9,818Top 1%
Overall (All Time): #9,982 of 4,157,543Top 1%
120
Patents All Time

Issued Patents All Time

Showing 51–75 of 120 patents

Patent #TitleCo-InventorsDate
9285737 Fixing device and image forming apparatus Yasunori Ishigaya, Kazuhito Kishi, Keisuke Kawabata, Misaki Shimizu, Yoshiki Yamaguchi +1 more 2016-03-15
9223268 Fixing device, belt device, and image forming apparatus Yoshiki Yamaguchi, Kazuhito Kishi, Masahiro Samei, Misaki Shimizu, Yukiko Nakajima +3 more 2015-12-29
9176440 Fixing device and image forming apparatus Haruyuki Honda, Yoshiki Yamaguchi, Kazuhito Kishi, Yasunori Ishigaya, Misaki Shimizu +1 more 2015-11-03
9158250 Fixing device and image forming apparatus Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Yuji Arai +9 more 2015-10-13
9146512 Fixing device and image forming device Kazuya Saito, Takeshi Uchitani, Takamasa Hase, Shuutaroh Yuasa, Shinichi Namekata +3 more 2015-09-29
9128426 Fixing device and image forming apparatus including same Akira Shinshi, Naoki Iwaya, Yoshiki Yamaguchi, Shuntaroh Tamaki, Hiroshi Yoshinaga +3 more 2015-09-08
9122212 Fixing device and image forming apparatus including same Kazuhito Kishi, Masahiro Samei, Hiroshi Ono, Hiroshi Seo, Yasunori Ishigaya +3 more 2015-09-01
9075357 Fixing device and image forming apparatus including same Kazuhito Kishi, Takumi Waida, Masahiro Samei, Hiroshi Ono, Takeshi Yamamoto +4 more 2015-07-07
9075365 Fixing device Hiroshi Seo, Ryota Yamashina, Takumi Waida 2015-07-07
9069302 Fixing device and image forming apparatus including same Masahiro Samei, Takumi Waida, Hiroshi Ono, Takeshi Yamamoto, Hiroshi Seo +3 more 2015-06-30
9046837 Fixing device and method, and image forming apparatus incorporating same Yutaka Ikebuchi, Masaaki Yoshikawa, Kenji Ishii, Yuji Arai, Hiromasa Takagi +9 more 2015-06-02
8983353 Fixing apparatus and image forming apparatus Arinobu Yoshiura, Masaaki Yoshikawa, Yuji Arai, Yoshiki Yamaguchi, Tetsuo Tokuda +9 more 2015-03-17
8977156 Fixing device and image forming apparatus including same Takeshi Yamamoto, Kazuhito Kishi, Takumi Waida, Masahiro Samei, Hiroshi Ono +3 more 2015-03-10
8965230 Fixing device Ryota Yamashina, Hiroshi Seo, Takumi Waida 2015-02-24
8953993 Fixing device and image forming apparatus incorporating same Tetsuo Tokuda, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Yuji Arai +9 more 2015-02-10
8948641 Fixing device and control method used therein Hiroshi Seo, Ryota Yamashina, Takumi Waida 2015-02-03
8929789 Fixing device with resistance heating element capable of accurately generating heat and image forming apparatus with fixing device Hiroshi Yoshinaga, Masaaki Yoshikawa, Kenji Ishii, Yuji Arai, Hiromasa Takagi +9 more 2015-01-06
8903296 Fixing device and image forming apparatus incorporating same Toshihiko Shimokawa, Yuji Arai, Hiromasa Takagi, Yoshiki Yamaguchi, Arinobu Yoshiura +9 more 2014-12-02
8886064 Fixing device, heater control method, and image forming apparatus incorporating same 2014-11-11
8867976 Fixing device, image forming apparatus incorporating same, and method of heating fixing member Kenji Ishii, Masaaki Yoshikawa, Hiroshi Yoshinaga, Naoki Iwaya, Yoshiki Yamaguchi +6 more 2014-10-21
8843043 Fixing device and image forming apparatus incorporating same Naoki Iwaya, Masaaki Yoshikawa, Akira Shinshi, Kenji Ishii, Kenichi Hasegawa +6 more 2014-09-23
8831494 Fixing device and image forming apparatus including same Yutaka Ikebuchi, Hiroshi Yoshinaga, Toshihiko Shimokawa, Masaaki Yoshikawa, Yoshiki Yamaguchi +8 more 2014-09-09
8811874 Belt device with mechanism capable of minimizing increase of rotation torque of endless belt and fixing device and image forming apparatus incorporating same Toshihiko Shimokawa, Kenji Ishii, Masaaki Yoshikawa, Hiroshi Yoshinaga, Naoki Iwaya +6 more 2014-08-19
8811837 Fixing device and image forming apparatus including same Hiroshi Yoshinaga, Kenichi Hasegawa, Masaaki Yoshikawa, Kenji Ishii, Akira Shinshi +7 more 2014-08-19
8792797 Fixing device, image forming apparatus, and heater control method Yutaka Ikebuchi, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Yuji Arai +9 more 2014-07-29