HT

Hiromasa Takagi

Ricoh Company: 16 patents #3 of 1,810Top 1%
Overall (2017): #2,655 of 506,227Top 1%
16
Patents 2017

Issued Patents 2017

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
9851663 Fixing device and image forming apparatus Shohta Kobashigawa, Kenji Ishii, Kazuhito Kishi, Takayuki Seki, Hiroshi Yoshinaga +6 more 2017-12-26
9829840 Fixing device and image forming apparatus Takashi Seto, Kenji Ishii, Susumu Matsusaka, Yasuhiko Ogino, Shohta Kobashigawa +6 more 2017-11-28
9811031 Fixing device capable of enhancing durability of endless belt and image forming apparatus incorporating the same Teppei Kawata, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga +13 more 2017-11-07
9727008 Fixing device and image forming apparatus including the fixing device Teppei Kawata, Masahiko Satoh, Kenji Ishii, Masaaki Yoshikawa, Hiroshi Yoshinaga +13 more 2017-08-08
9715203 Fixing device and image forming apparatus including same Takeshi Uchitani, Masahiko Satoh, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +19 more 2017-07-25
9690243 Image forming apparatus including a fixing device that includes a radiant heat heating source and a fixing member that rotates before an abnormality solved Takamasa Hase, Masahiko Satoh, Shinichi Namekata, Kenji Ishii, Takeshi Uchitani +14 more 2017-06-27
9678460 Fixing device, image forming apparatus, and fixing method Takamasa Hase, Susumu Matsusaka, Yasuhiko Ogino, Shohta Kobashigawa, Kenji Ishii +6 more 2017-06-13
9651905 Fixing device and image forming apparatus Ippei Fujimoto, Kazuhito Kishi, Takashi Seto, Takayuki Seki, Kazunari Sawada +5 more 2017-05-16
9639042 Fixing device and image forming apparatus Kenji Ishii, Susumu Matsusaka, Yasuhiko Ogino, Shohta Kobashigawa, Kazuhito Kishi +5 more 2017-05-02
9618888 Fixing device and image forming apparatus Keitaro Shoji, Kenji Ishii, Takayuki Seki 2017-04-11
9618887 Fixing device and image forming apparatus Kenji Ishii, Kazuhito Kishi, Takashi Seto, Takayuki Seki, Hiroshi Yoshinaga +2 more 2017-04-11
9618886 NIP formation assembly, fixing device, and image forming apparatus Takashi Seto, Kenji Ishii, Kazuhito Kishi, Ippei Fujimoto, Takayuki Seki +3 more 2017-04-11
9612556 Fixing device and image forming apparatus Yasuhiko Ogino, Kenji Ishii, Takashi Seto, Ippei Fujimoto, Kazuhito Kishi +6 more 2017-04-04
9599940 Fixing device with nip forming member having a high thermal-conductive layer with a low thermal conductive portion Motoyoshi Yamano, Kohichi Utsunomiya, Kenji Ishii, Takayuki Seki, Keitaro Shoji +6 more 2017-03-21
9581948 Fixing device and image forming apparatus Kenji Ishii, Takayuki Seki, Keitaro Shoji 2017-02-28
9557692 Fixing device and image forming apparatus Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Yuji Arai +9 more 2017-01-31