TO

Toshio Ogiso

Ricoh Company: 17 patents #1,283 of 9,818Top 15%
RS Ricoh Printing Systems: 8 patents #6 of 200Top 3%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
Overall (All Time): #136,091 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12025930 Fixing device including a pressure rotator setting an exit guide angle and image forming apparatus incorporating same Tamotsu Ikeda 2024-07-02
11927900 Fixing device and image forming apparatus incorporating same Tamotsu Ikeda 2024-03-12
11703787 Fixing device and image forming apparatus incorporating same Tamotsu Ikeda 2023-07-18
10078300 Fixing device and image forming apparatus Masahiro Samei, Tamotsu Ikeda, Shigeo Nanno 2018-09-18
10036987 Removable fixing device having a convex guide and image forming apparatus Shigeo Nanno, Masahiro Samei, Tamotsu Ikeda 2018-07-31
8873988 Fixing device capable of minimizing overshoot and image forming apparatus with same Kohichi Ono, Akinobu Nakamura 2014-10-28
8874021 Media guide mechanism, fixing device and image forming apparatus incorporating same Kohta Sakaya, Yasuhide Ohkubo, Tamotsu Ikeda, Yoshiharu Takahashi, Chikara Hiraoka 2014-10-28
8588639 Fixing device and image forming apparatus Yoshiharu Takahashi 2013-11-19
8509644 Fixing device, image forming apparatus incorporating same, and fixing method Yoshiharu Takahashi 2013-08-13
8417137 Fixing device and image forming apparatus employing the fixing device Yutaka Naitoh, Tamotsu Ikeda 2013-04-09
8340543 Temperature control method for fixing device and image forming apparatus incorporating same Shin Yamamoto 2012-12-25
8301051 Fixing device, image forming apparatus, and method of controlling fixing device Shin Yamamoto 2012-10-30
8135298 Image forming apparatus and image forming method for controlling image formation based on a temperature of a fusing rotating body Shin Yamamoto 2012-03-13
7953361 Fixing device and image forming apparatus Shigeru Obata, Yoshihiro Fukuhata, Masahiro Yagi 2011-05-31
7831186 Fixing device and image forming apparatus Shigeru Obata, Masahiro Yagi, Yoshihiro Fukuhata, Shin Yamamoto 2010-11-09
7769332 Pressurizing unit, fixing device, and image forming apparatus Shin Yamamoto, Yutaka Naito 2010-08-03
7761044 Fixing device and image forming apparatus using the same Masahiro Yagi, Shigeru Obata, Chikara Hiraoka, Toru Hanashima, Osamu Saito 2010-07-20
7477867 Fixing device having cleaner and temperature detector Chikara Hiraoka, Toru Hanashima, Masahiko Saito, Shunichi Oohara 2009-01-13
7433640 Fixing apparatus and image forming apparatus including heating member Masahiro Yagi, Shunichi Oohara, Shigeru Obata, Toru Hanashima, Osamu Saito 2008-10-07
7406287 Fixing device and image forming apparatus provided with fixing device Hiroyoshi Matsumoto, Shigeru Obata, Masahiro Yagi, Chikara Hiraoka, Chiharu Kamoshida 2008-07-29
7298981 Fixing device and image forming apparatus with guide having adjustable biasing angle Shunichi Oohara, Hiroyuki Seki, Shigeru Obata, Chikara Hiraoka, Toru Hanashima +1 more 2007-11-20
7167670 Electro-photographic apparatus with a heating roller and pressurizing member Shigeru Obata, Shunichi Oohara, Kenji Asuwa, Toru Hanashima, Chikara Hiraoka 2007-01-23
7142803 Fixing device and image forming apparatus Tuyoshi Koyama, Chikara Hiraoka, Kazuo Kikuchi, Tetsuji Takegoshi, Toru Hanashima +1 more 2006-11-28
7136615 Heat fixing unit with improved belt handling Shunjchi Oohara, Tetsuji Takegoshi, Shigeru Obata, Kenji Asuwa 2006-11-14
6928257 Image forming and recording apparatus with three pressure members Masaru Nakano, Hiromitsu Fukuda, Shigeru Obata, Toru Hanashima, Kazushige Oonishi +8 more 2005-08-09