HT

Hiromasa Takagi

Ricoh Company: 114 patents #26 of 9,818Top 1%
Overall (All Time): #10,849 of 4,157,543Top 1%
115
Patents All Time

Issued Patents All Time

Showing 26–50 of 115 patents

Patent #TitleCo-InventorsDate
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
9618887 Fixing device and image forming apparatus Kenji Ishii, Kazuhito Kishi, Takashi Seto, Takayuki Seki, Hiroshi Yoshinaga +2 more 2017-04-11
9618888 Fixing device and image forming apparatus Keitaro Shoji, Kenji Ishii, Takayuki Seki 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
9529309 Fixing device and image forming apparatus including a multi-layer nip formation pad Kenji Ishii, Takayuki Seki, Keitaro Shoji 2016-12-27
9507306 Fixing device with a temperature detector adjacent an easily deformable location and image forming apparatus including same Takeshi Uchitani, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa +13 more 2016-11-29
9454114 Fixing device and image forming apparatus including same Takamasa Hase, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga +13 more 2016-09-27
9405270 Fixing device and image forming apparatus incorporating same Tadashi Ogawa, Kenji Ishii, Teppei Kawata, Arinobu Yoshiura, Toshihiko Shimokawa +8 more 2016-08-02
9405250 Fixing device capable of minimizing damage of endless rotary body and image forming apparatus incorporating same Tadashi Ogawa, Masahiko Satoh, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii +12 more 2016-08-02
9405242 Fixing device and image forming device Takamasa Hase, Kenji Ishii, Tadashi Ogawa, Teppei Kawata, Arinobu Yoshiura +12 more 2016-08-02
9367010 Fixing device and image forming device Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Tadashi Ogawa +13 more 2016-06-14
9316972 Fixing device and image forming apparatus incorporating same Yuji Arai, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +8 more 2016-04-19
9298146 Fixing device and image forming apparatus Arinobu Yoshiura, Hideo Nagafuji, Yuji Arai, Kohichi Utsunomiya, Shohei Saito +5 more 2016-03-29
9291967 Fixing device and image forming apparatus incorporating same Naoki Iwaya, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga +13 more 2016-03-22
9291966 Fixing device and image forming apparatus Keitaro Shoji, Kenji Ishii, Takayuki Seki 2016-03-22
9239559 Fixing device and image forming apparatus including same Takeshi Uchitani, Masahiko Satoh, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +19 more 2016-01-19
9239553 Fixing device and image forming apparatus Yuji Arai, Takayuki Seki, Yoshiki Yamaguchi, Shuntaroh Tamaki, Yutaka Ikebuchi +17 more 2016-01-19
9235177 Fixing device and image forming apparatus incorporating same Takuya Seshita, Masahiko Satoh, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii +15 more 2016-01-12
9229389 Fixing device and image forming apparatus Kenji Ishii, Arinobu Yoshiura 2016-01-05
9207596 Image forming apparatus including a fixing device Takamasa Hase, Masahiko Satoh, Shinichi Namekata, Kenji Ishii, Takeshi Uchitani +14 more 2015-12-08