YY

Yoshiki Yamaguchi

Ricoh Company: 115 patents #24 of 9,818Top 1%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
MM Mitsubishi Mining: 2 patents #467 of 2,247Top 25%
IBM: 1 patents #44,794 of 70,183Top 65%
HC Hirose Electric Co.: 1 patents #259 of 407Top 65%
TT The University Of Tokyo: 1 patents #1,000 of 2,633Top 40%
GL Glory: 1 patents #217 of 385Top 60%
Overall (All Time): #8,739 of 4,157,543Top 1%
127
Patents All Time

Issued Patents All Time

Showing 26–50 of 127 patents

Patent #TitleCo-InventorsDate
9581945 Fixing exit guide plate, fixing device, and image forming apparatus Haruyuki Honda, Ryuuichi Mimbu, Yoshio Hattori, Toshihiko Shimokawa 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
9529308 Image forming apparatus and image forming method Yutaka Ikebuchi, Yoshio Hattori, Ryuuichi Mimbu, Yasunori Ishigaya, Kazuya Saito +2 more 2016-12-27
9518736 Water-containing solid fuel drying apparatus and drying method Katsuhiko Yokohama, Kenichiro Kosaka, Keigo Matsumoto, Noboru Kawamoto, Masaaki Kinoshita +6 more 2016-12-13
9501011 Fixing device and image forming apparatus including same Ippei Fujimoto, Akira Shinshi, Naoki Iwaya, Shuntaroh Tamaki, Hiroshi Yoshinaga +3 more 2016-11-22
9501006 Fixing device, image forming apparatus, and fixing method Toshihiko Shimokawa, Ryuuichi Mimbu, Kazuya Saito, Haruyuki Honda, Yasunori Ishigaya +1 more 2016-11-22
9494901 Fixing device and image forming apparatus with a rotatable light shield Kazuya Saito, Ryuuichi Mimbu, Toshihiko Shimokawa, Haruyuki Honda, Yasunori Ishigaya +3 more 2016-11-15
9405270 Fixing device and image forming apparatus incorporating same Tadashi Ogawa, Kenji Ishii, Teppei Kawata, Arinobu Yoshiura, Toshihiko Shimokawa +8 more 2016-08-02
9405239 Fixing device, image forming apparatus, and fixing method Yutaka Ikebuchi, Takayuki Seki, Yuji Arai, Shuntaroh Tamaki, Kazuya Saito 2016-08-02
9389550 Fixing device, image forming apparatus, and fixing method Kazuya Saito, Takayuki Seki, Yuji Arai, Ryuuichi Mimbu, Shuntaro Tamaki +4 more 2016-07-12
9383693 Fixing device, image forming apparatus, and fixing method Shuutaroh Yuasa, Shuntaro Tamaki, Takayuki Seki, Hiroshi Yoshinaga, Yuji Arai +4 more 2016-07-05
9348272 Fixing device including a reinforced heat shield and image forming apparatus Shuntaroh Tamaki, Takayuki Seki, Hiroshi Yoshinaga, Yuji Arai, Ryuuichi Mimbu +4 more 2016-05-24
9316972 Fixing device and image forming apparatus incorporating same Yuji Arai, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa, Teppei Kawata +8 more 2016-04-19
9316968 Fixing device and image forming apparatus Kazuya Saito, Takayuki Seki, Hiroshi Yoshinaga, Yuji Arai, Ryuuichi Mimbu +4 more 2016-04-19
9316964 Fixing device and image forming apparatus Yoshio Hattori, Ryuuichi Mimbu, Yasunori Ishigaya, Toshihiko Shimokawa, Kazuya Saito +1 more 2016-04-19
9310735 Fixing device and image forming apparatus having temperature detector Kazuhito Kishi, Masahiro Samei, Ippei Fujimoto, Misaki Shimizu, Yukiko Nakajima +1 more 2016-04-12
9310733 Fixing device and image forming apparatus including same Hiroshi Yoshinaga, Masaaki Yoshikawa, Kenichi Hasegawa, Kenji Ishii, Akira Shinshi +8 more 2016-04-12
9285728 Image forming apparatus including a heat shield interposed between a heater and a fixing rotary body and image forming method Hiroshi Yoshinaga, Takayuki Seki, Yuji Arai, Yutaka Ikebuchi, Ryuuichi Mimbu +4 more 2016-03-15
9285737 Fixing device and image forming apparatus Yasunori Ishigaya, Kazuhito Kishi, Ippei Fujimoto, Keisuke Kawabata, Misaki Shimizu +1 more 2016-03-15
9250579 Separator, fixing device, and image forming apparatus Kentaroh Takahashi, Yasutoshi Iwata 2016-02-02
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, Shuntaroh Tamaki, Yutaka Ikebuchi, Kazuya Saito +17 more 2016-01-19
9229379 Fixing device and image forming apparatus Shuntaroh Tamaki, Takayuki Seki, Yuji Arai, Yutaka Ikebuchi, Kazuya Saito +2 more 2016-01-05
9221661 Pressure adjuster, fixing device, and image forming apparatus Ryuuichi Mimbu, Takayuki Seki, Hiroshi Yoshinaga, Yuji Arai, Yutaka Ikebuchi +5 more 2015-12-29
9223268 Fixing device, belt device, and image forming apparatus Kazuhito Kishi, Masahiro Samei, Ippei Fujimoto, Misaki Shimizu, Yukiko Nakajima +3 more 2015-12-29