HY

Hiroshi Yoshinaga

Ricoh Company: 223 patents #2 of 9,818Top 1%
Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%
FC Fukuda Metal Foil & Powder Co.: 1 patents #50 of 95Top 55%
SL Sri Sports Limited: 1 patents #123 of 176Top 70%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
IBM: 1 patents #44,794 of 70,183Top 65%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #2,229 of 4,157,543Top 1%
239
Patents All Time

Issued Patents All Time

Showing 26–50 of 239 patents

Patent #TitleCo-InventorsDate
10551777 Fixing device and image forming apparatus Takamasa Hase, Takeshi Uchitani, Yutaka Ikebuchi, Takuya Seshita, Shuutaroh Yuasa 2020-02-04
10527981 Fixing device and image forming apparatus incorporating same Yutaka Naitoh, Daisuke Inoue, Natsuki Watanabe, Takahiro Imada 2020-01-07
10488798 Fixing device with nip former longer than opposed rotator Ippei Fujimoto, Kenji Ishii, Takayuki Seki, Kazunari Sawada, Ryohei Matsuda 2019-11-26
10331062 Image forming apparatus and image forming method Kenji Ishii, Hiroyuki Shimada, Ippei Fujimoto, Takashi Seto, Takayuki Seki +1 more 2019-06-25
10317823 Fixing device and image forming apparatus having a thermal conduction aid contacting a nip formation pad Ippei Fujimoto, Kenji Ishii, Hiroyuki Shimada, Takashi Seto, Takayuki Seki +1 more 2019-06-11
10295937 Fixing device and image forming apparatus Kazunari Sawada, Ippei Fujimoto, Kenji Ishii, Hiroyuki Shimada, Takashi Seto +1 more 2019-05-21
10295939 Fixing device including a pressure rotator and a thermal conduction aid, and image forming apparatus including the fixing device Kenji Ishii, Ippei Fujimoto, Takashi Seto, Takayuki Seki, Kazunari Sawada +1 more 2019-05-21
10289037 Fixing device and image forming apparatus Takayuki Seki, Takashi Seto, Kenji Ishii, Ippei Fujimoto, Kazunari Sawada +1 more 2019-05-14
10281850 Fixing device with nip formation pad having an abutment region and opening portions Ryohei Matsuda, Ippei Fujimoto, Kenji Ishii, Takayuki Seki, Kazunari Sawada 2019-05-07
10241448 Fixing device and image forming apparatus having nip pad including a center bend line Kazunari Sawada, Ippei Fujimoto, Kenji Ishii, Takashi Seto, Takayuki Seki 2019-03-26
10222732 Fixing device having a lateral end heater and image forming apparatus incorporating same Takayuki Seki, Kenji Ishii, Takashi Seto, Ippei Fujimoto, Kazunari Sawada +1 more 2019-03-05
10209654 Fixing device and image forming apparatus Takamasa Hase, Takeshi Uchitani, Yutaka Ikebuchi, Takuya Seshita, Shuutaroh Yuasa 2019-02-19
10197957 Fixing device, image forming apparatus, and fixing device control method Ippei Fujimoto, Kazunari Sawada, Kenji Ishii, Takayuki Seki, Ryohei Matsuda 2019-02-05
10155283 Method for manufacturing mill roll, mill roll and manufacturing apparatus of mill roll Kenji Kimura, Akio Sonoda, Hideaki Nagayoshi 2018-12-18
10082751 Fixing device and image forming apparatus Takashi Seto, Kenji Ishii, Takayuki Seki, Ippei Fujimoto, Hiroyuki Shimada +2 more 2018-09-25
10042297 Fixing device and image forming apparatus incorporating same Kazunari Sawada, Kenji Ishii, Kazuhito Kishi, Takayuki Seki, Ippei Fujimoto +2 more 2018-08-07
10042295 Fixing device, image forming apparatus, and image forming method Kenji Ishii, Kazuhito Kishi, Takashi Seto, Takayuki Seki, Ippei Fujimoto +2 more 2018-08-07
10025247 Fixing device including a pressure pad with at least one mouth, and image forming apparatus incorporating same Kazunari Sawada, Ippei Fujimoto, Kenji Ishii, Takashi Seto, Takayuki Seki +1 more 2018-07-17
10001735 Fixing device and image forming apparatus Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Yuji Arai, Naoki Iwaya +9 more 2018-06-19
9989905 Fixing device and image forming apparatus Takayuki Seki, Takashi Seto, Kenji Ishii, Ippei Fujimoto, Kazunari Sawada 2018-06-05
9983526 Fixing device and image forming apparatus including same Takeshi Uchitani, Masahiko Satoh, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +19 more 2018-05-29
9971289 Image forming apparatus Takamasa Hase, Masahiko Satoh, Shinichi Namekata, Kenji Ishii, Takeshi Uchitani +14 more 2018-05-15
9964905 Fixing device and image forming apparatus Takayuki Seki, Kenji Ishii, Kazuhito Kishi, Takashi Seto, Ippei Fujimoto +2 more 2018-05-08
9933730 Fixing device and image forming apparatus Kenji Ishii, Kazuhito Kishi, Takashi Seto, Takayuki Seki, Ippei Fujimoto +1 more 2018-04-03
9927748 Fixing device and image forming apparatus Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa, Hiromasa Takagi +12 more 2018-03-27