YI

Yasunori Ishigaya

Ricoh Company: 59 patents #144 of 9,818Top 2%
Overall (All Time): #39,750 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 26–50 of 59 patents

Patent #TitleCo-InventorsDate
9405242 Fixing device and image forming device Takamasa Hase, Kenji Ishii, Tadashi Ogawa, Teppei Kawata, Arinobu Yoshiura +12 more 2016-08-02
9354567 Fixing device, fixing device control method, and image forming apparatus Takumi Waida, Ryota Yamashina, Masahiro Samei 2016-05-31
9341999 Image forming apparatus which adjusts a time interval between successive recording media and the changing time at which the time interval is changed Takuya Seshita, Takeshi Yamamoto, Hajime Gotoh, Takahiro Imada, Akira Suzuki 2016-05-17
9335683 Fixing device and image forming apparatus Keita Maejima 2016-05-10
9316964 Fixing device and image forming apparatus Yoshiki Yamaguchi, Yoshio Hattori, Ryuuichi Mimbu, Toshihiko Shimokawa, Kazuya Saito +1 more 2016-04-19
9285737 Fixing device and image forming apparatus Kazuhito Kishi, Ippei Fujimoto, Keisuke Kawabata, Misaki Shimizu, Yoshiki Yamaguchi +1 more 2016-03-15
9235177 Fixing device and image forming apparatus incorporating same Takuya Seshita, Masahiko Satoh, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii +15 more 2016-01-12
9223268 Fixing device, belt device, and image forming apparatus Yoshiki Yamaguchi, Kazuhito Kishi, Masahiro Samei, Ippei Fujimoto, Misaki Shimizu +3 more 2015-12-29
9213281 Fixing device with mechanism capable of heating fixing rotary body by electromagnetic induction effectively and image forming apparatus incorporating same Masahiro Samei 2015-12-15
9176440 Fixing device and image forming apparatus Haruyuki Honda, Yoshiki Yamaguchi, Kazuhito Kishi, Ippei Fujimoto, Misaki Shimizu +1 more 2015-11-03
9164438 Fixing device temperature control method, fixing device, and image forming apparatus Masahiro Samei, Ryota Yamashina, Takumi Waida 2015-10-20
9141047 Fixing device and image forming apparatus Takeshi Uchitani, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa +15 more 2015-09-22
9122212 Fixing device and image forming apparatus including same Ippei Fujimoto, Kazuhito Kishi, Masahiro Samei, Hiroshi Ono, Hiroshi Seo +3 more 2015-09-01
9075357 Fixing device and image forming apparatus including same Kazuhito Kishi, Takumi Waida, Masahiro Samei, Hiroshi Ono, Takeshi Yamamoto +4 more 2015-07-07
9069302 Fixing device and image forming apparatus including same Masahiro Samei, Takumi Waida, Hiroshi Ono, Takeshi Yamamoto, Ippei Fujimoto +3 more 2015-06-30
9042761 Fixing device and image forming apparatus Takeshi Uchitani, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Tadashi Ogawa +15 more 2015-05-26
9031439 Fixing device and image forming device Takamasa Hase, Kenji Ishii, Tadashi Ogawa, Teppei Kawata, Arinobu Yoshiura +12 more 2015-05-12
8977156 Fixing device and image forming apparatus including same Takeshi Yamamoto, Kazuhito Kishi, Takumi Waida, Masahiro Samei, Hiroshi Ono +3 more 2015-03-10
8886071 Fixing device, fixing device control method, and image forming apparatus Ryota Yamashina, Masahiro Samei, Takumi Waida 2014-11-11
8867943 Fixing device and image forming apparatus incorporating same Masahiro Samei 2014-10-21
8818225 Temperature control method of thermal fixing device, thermal fixing device, and image forming apparatus Masahiro Samei, Ryota Yamashina, Takumi Waida 2014-08-26
8744330 Fixing device having a plurality of heat sources and a plurality of temperature detectors and image forming apparatus including same Hiroshi Yoshinaga, Akira Shinshi, Kenichi Hasegawa, Ryota Yamashina 2014-06-03
8718506 Fixing device and image forming apparatus incorporating same Masahiro Samei 2014-05-06
8699896 Failure predictor, fixing device, image forming apparatus, and failure prediction system Yasunari Mikutsu, Ryota Yamashina 2014-04-15
8682237 Fixing device and image forming apparatus including same Akira Shinshi, Kenichi Hasegawa, Hiroshi Yoshinaga, Ryota Yamashina 2014-03-25