TO

Tadashi Ogawa

Ricoh Company: 92 patents #44 of 9,818Top 1%
Fujitsu Limited: 38 patents #487 of 24,456Top 2%
Pioneer Electronic: 8 patents #194 of 1,840Top 15%
TC Toyo Ink Mfg. Co.: 3 patents #62 of 499Top 15%
LE Lec: 2 patents #1 of 13Top 8%
UI Ube Industries: 2 patents #593 of 1,686Top 40%
YE Yokogawa Hokushin Electric: 2 patents #13 of 112Top 15%
KC Komatsu Electronic Metals Co.: 2 patents #57 of 160Top 40%
TO Toyota: 2 patents #10,861 of 26,838Top 45%
SC Sumitomo Cement Co.: 1 patents #32 of 113Top 30%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
JI Japan Atomic Energy Research Institute: 1 patents #188 of 609Top 35%
IW Iwatani: 1 patents #23 of 73Top 35%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #5,732 of 4,157,543Top 1%
156
Patents All Time

Issued Patents All Time

Showing 1–25 of 156 patents

Patent #TitleCo-InventorsDate
10935911 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 2021-03-02
10409196 Image forming apparatus including developing devices, developing containers, and changeable conveyance paths between the developing devices and the developing containers Toshio Koike, Jun Shiori, Teppei Kikuchi, Michiharu Suzuki, Kazuhiro Aso +2 more 2019-09-10
9983526 Fixing device and image forming apparatus including same Takeshi Uchitani, Masahiko Satoh, Kenji Ishii, Teppei Kawata, Arinobu Yoshiura +19 more 2018-05-29
9971289 Image forming apparatus Takamasa Hase, Masahiko Satoh, Shinichi Namekata, Kenji Ishii, Takeshi Uchitani +14 more 2018-05-15
9927748 Fixing device and image forming apparatus Hiroshi Yoshinaga, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiromasa Takagi +12 more 2018-03-27
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, Teppei Kawata, Arinobu Yoshiura +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
9658576 Developing device, and process cartridge and image forming apparatus incorporating same Hideki Kimura, Hiroyuki Mabuchi, Junichi Terai, Hiroshi Kikuchi, Yukio Otome +1 more 2017-05-23
9529297 Developing device, process cartridge, and image forming apparatus including same Hiroaki Okamoto, Hiroyuki Mabuchi, Yukio Otome, Junichi Terai, Hideki Kimura +1 more 2016-12-27
9507313 Image forming apparatus with removable unit and a connectable device to connect to the removable unit Junichi Terai, Hiroyuki Mabuchi, Yukio Otome, Hideki Kimura, Hiroshi Kikuchi +1 more 2016-11-29
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, Takahiro Imada +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 Kenji Ishii, Teppei Kawata, Arinobu Yoshiura, Toshihiko Shimokawa, Kensuke Yamaji +8 more 2016-08-02
9405242 Fixing device and image forming device Takamasa Hase, Kenji Ishii, Teppei Kawata, Arinobu Yoshiura, Toshihiko Shimokawa +12 more 2016-08-02
9405250 Fixing device capable of minimizing damage of endless rotary body and image forming apparatus incorporating same Masahiko Satoh, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii, Takeshi Uchitani +12 more 2016-08-02
9395652 Developing unit, process cartridge, and image forming apparatus Hiroshi Kikuchi, Hiroyuki Mabuchi, Junichi Terai, Hideki Kimura, Yukio Otome +2 more 2016-07-19
9367010 Fixing device and image forming device Hiromasa Takagi, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga +13 more 2016-06-14
9360816 Toner bottle driving device control method and image forming apparatus Hiroyuki Mabuchi, Hiroaki Okamoto, Junichi Terai, Yukio Otome, Hiroshi Kikuchi +2 more 2016-06-07
9341986 Developing device, image forming apparatus, and process cartridge Atsushi Nakamoto, Koichi Yamazaki, Hironori Ohshima 2016-05-17
9323176 Powder supply device and image forming apparatus incorporating same Junichi Terai, Hiroyuki Mabuchi, Yukio Otome, Hiroshi Kikuchi, Hiroaki Okamoto +2 more 2016-04-26
9316971 Image forming method for forming toner image on recording medium Takamasa Hase, Takeshi Uchitani, Satoshi Ueno, Teppei Kawata, Kazuya Saito +2 more 2016-04-19
9316972 Fixing device and image forming apparatus incorporating same Yuji Arai, Masaaki Yoshikawa, Kenji Ishii, Teppei Kawata, Arinobu Yoshiura +8 more 2016-04-19
9291967 Fixing device and image forming apparatus incorporating same Naoki Iwaya, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga +13 more 2016-03-22