TH

Takamasa Hase

Ricoh Company: 130 patents #10 of 9,818Top 1%
Overall (All Time): #8,281 of 4,157,543Top 1%
131
Patents All Time

Issued Patents All Time

Showing 76–100 of 131 patents

Patent #TitleCo-InventorsDate
8918042 Fixing device and image forming apparatus including the fixing device Takahiro Imada, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa +13 more 2014-12-23
8891990 Image forming apparatus and method for forming toner image on recording medium Shuutaroh Yuasa, Tadashi Ogawa, Takeshi Uchitani, Satoshi Ueno, Teppei Kawata +2 more 2014-11-18
8886103 Fixing device capable of minimizing damage of endless belt and image forming apparatus incorporating same Kensuke Yamaji, Masahiko Satoh, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii +12 more 2014-11-11
8886101 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 2014-11-11
8867976 Fixing device, image forming apparatus incorporating same, and method of heating fixing member Ippei Fujimoto, Kenji Ishii, Masaaki Yoshikawa, Hiroshi Yoshinaga, Naoki Iwaya +6 more 2014-10-21
8855506 Image forming apparatus Masahiko Satoh, Shinichi Namekata, Kenji Ishii, Takeshi Uchitani, Tadashi Ogawa +14 more 2014-10-07
8831494 Fixing device and image forming apparatus including same Yutaka Ikebuchi, Hiroshi Yoshinaga, Toshihiko Shimokawa, Masaaki Yoshikawa, Yoshiki Yamaguchi +8 more 2014-09-09
8831498 Fixing device and guide mechanism included therein Naoki Iwaya, Masahiko Satoh, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii +12 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
8811842 Fixing device and image forming apparatus Masanao Ehara, Kenji Ishii, Tadashi Ogawa, Satoshi Ueno, Hiroshi Seo +2 more 2014-08-19
8811843 Image forming apparatus for forming toner image on recording medium Tadashi Ogawa, Takeshi Uchitani, Satoshi Ueno, Teppei Kawata, Kazuya Saito +2 more 2014-08-19
8774666 Fixing device and image forming apparatus incorporating same Kazuya Saito, Takeshi Uchitani, Shuutaroh Yuasa, Ippei Fujimoto, Shinichi Namekata +3 more 2014-07-08
8750776 Fixing roller, and fixing device and image forming apparatus incorporating same Tadashi Ogawa, Takeshi Uchitani, Satoshi Ueno, Teppei Kawata, Kazuya Saito +2 more 2014-06-10
8737859 Image forming apparatus capable of reducing jam in fixing unit Shuutaroh Yuasa, Takeshi Uchitani, Yutaka Ikebuchi, Hiroshi Yoshinaga, Takuya Seshita 2014-05-27
8737861 Fixing device and image forming apparatus Masanao Ehara, Tadashi Ogawa, Takeshi Uchitani, Satoshi Ueno, Teppei Kawata +3 more 2014-05-27
8718502 Fixing device and image forming apparatus incorporating same having a tube which penetrates through a heater and passes infrared rays to a temperature detector Shuutaroh Yuasa, Masanao Ehara, Tadashi Ogawa, Satoshi Ueno, Hiroshi Seo +4 more 2014-05-06
8706016 Fixing device and image forming apparatus incorporating the fixing device Takahiro Imada, Masanao Ehara, Tadashi Ogawa, Satoshi Ueno, Hiroshi Seo +1 more 2014-04-22
8682192 Image forming apparatus Yutaka Ikebuchi, Yoshiki Yamaguchi, Toshihiko Shimokawa, Kenji Ishii, Naoki Iwaya +5 more 2014-03-25
8676078 Fixing device, image forming apparatus incorporating same, and method for fixing toner image on recording medium Kazuya Saito, Tadashi Ogawa, Takeshi Uchitani, Satoshi Ueno, Teppei Kawata +2 more 2014-03-18
8655246 Fixing device and image forming apparatus incorporating same Tetsuo Tokuda, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Naoki Iwaya +6 more 2014-02-18
8655244 Fixing device and image forming apparatus incorporating same Kenichi Hasegawa, Masaaki Yoshikawa, Akira Shinshi, Kenji Ishii, Hiroshi Yoshinaga +8 more 2014-02-18
8630572 Fixing device and image forming apparatus including same Ippei Fujimoto, Hiroshi Yoshinaga, Tetsuo Tokuda, Toshihiko Shimokawa, Kenji Ishii +7 more 2014-01-14
8626018 Fixing unit and image forming apparatus Tadashi Ogawa, Masanao Ehara, Satoshi Ueno, Hiroshi Seo, Takahiro Imada 2014-01-07
8615175 Fixing unit and image forming apparatus including same Takahiro Imada, Masaaki Yoshikawa, Kenji Ishii, Akira Shinshi, Hiroshi Yoshinaga +7 more 2013-12-24