KK

Keisuke Kubota

Ricoh Company: 30 patents #620 of 9,818Top 7%
HS Hitachi Printing Solutions: 6 patents #6 of 99Top 7%
KO Komatsu: 3 patents #609 of 2,087Top 30%
HC Hitachi Industrial Equipment Systems Co.: 3 patents #164 of 550Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
RS Ricoh Printing Systems: 2 patents #64 of 200Top 35%
HC Hitachi Koki Co.: 1 patents #557 of 888Top 65%
Overall (All Time): #64,479 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 26–45 of 45 patents

Patent #TitleCo-InventorsDate
8740288 Cab Takeshi Kamimae, Takeshi Esaki 2014-06-03
8725019 Fixing device, fixing device control method, and image forming apparatus 2014-05-13
8699904 Fixing device and image forming apparatus capable of suppressing variation image density Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2014-04-15
8666270 Image forming apparatus Toshiharu Hachisuka, Atsushi Nagata, Takashi Kagami 2014-03-04
8346143 Fixing device and image forming apparatus capable of effectively circulating and applying oil for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2013-01-01
8224220 Fixing device and image forming apparatus capable of adjusting amount of oil applied for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2012-07-17
8112022 Fixing device, image forming apparatus, and image fixing method capable of stably applying oil for fixing without adhering oil to sheet Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2012-02-07
8027627 Fixing device and image forming apparatus with improved mechanism for stably applying oil for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Yoshihiro Sonohara +4 more 2011-09-27
8023850 Image forming apparatus capable of stably applying oil for fixing Masami Okamoto, Jun Okamoto, Kazuo Suno, Kenji Nozawa, Naoto Suzuki +4 more 2011-09-20
7945198 Fixing device and image forming apparatus comprising same Teruaki Mitsuya, Takashi Suzuki, Yoshihiro Sonohara, Daisuke Hara 2011-05-17
7548718 Fixing device for fixing an unfixed toner image on a recording medium and image forming apparatus including the fixing device Teruaki Mitsuya, Takashi Suzuki, Yoshihiro Sonohara 2009-06-16
7324778 Fixing device including heating roller and pressure roller Takashi Suzuki, Teruaki Mitsuya, Masato Miwa, Yoshitaka Fujinuma, Tsutomu Nakagawa 2008-01-29
7106983 Color image forming apparatus Masayoshi Nakayama, Teruaki Mitsuya, Hisao Okada, Takashi Rokutanda 2006-09-12
6829449 Image forming apparatus with transfer bias inverting function Hiroyoshi Matsumoto, Teruaki Mitsuya, Tsuneaki Kawanishi, Hisao Okada, Natsuki Kuribayashi +1 more 2004-12-07
6813462 Electro-photographic developing unit Teruaki Mitsuya, Tsuneaki Kawanishi, Masayoshi Ishii, Hisao Okada, Hiroyoshi Matsumoto +1 more 2004-11-02
6792235 Electrophotographic apparatus including transferring device Masayoshi Ishii, Teruaki Mitsuya, Hideki Ando 2004-09-14
6760553 Electrophotographic cluster printing system with controlled image quality Teruaki Mitsuya, Masayoshi Ishii, Shintaro Yamada 2004-07-06
6738586 Print control method of electrophotograph and image formation apparatus with potential sensor using the method Teruaki Mitsuya, Hiroyuki Mabuchi, Masayoshi Ishii, Shinichi Akatsu 2004-05-18
6686943 Control method of an electrophotographic record apparatus and image formation apparatus including controlling developing bias and photoconductor surface potential Masayoshi Ishii, Teruaki Mitsuya, Shintaro Yamada 2004-02-03
6684036 Image forming apparatus Teruaki Mitsuya, Hiroyuki Mabuchi, Masayoshi Ishii, Shinichi Akatsu 2004-01-27