SK

Shinichi Kawahara

Ricoh Company: 39 patents #374 of 9,818Top 4%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
Overall (All Time): #76,774 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 26–41 of 41 patents

Patent #TitleCo-InventorsDate
7463852 Image forming apparatus having a developer conveying system and associated methodology Keiichi Yoshida, Yoshio Hattori, Takatsugu Fujishiro, Shuji Tanaka 2008-12-09
7391991 Process cartridge and image forming apparatus Takeo Suda, Takaaki Tawada, Choutaroh Kataoka 2008-06-24
7315723 Method and apparatus for image forming capable of effectively transporting toner Takeo Suda, Keiichi Yoshida, Yoshio Hattori, Yutaka Takahashi 2008-01-01
7292816 Method and apparatus for electrophotographic image forming capable of effectively removing residual toner, a cleaning mechanism used therein, a process cartridge including the cleaning mechanism used in the apparatus, and toner used in the apparatus Tokuya Ojimi, Toshio Koike, Takaaki Tawada, Takeshi Shintani, Yuji Arai +4 more 2007-11-06
7209698 Method and apparatus for image forming capable of using minuscule spherical particles of toner, a process cartridge in use for the apparatus and a toner used in the image forming for obtaining an image with a high thin line reproducibility Takaaki Tawada, Takeo Suda, Chohtaroh Kataoka, Keiichi Yoshida, Haruji Mizuishi 2007-04-24
7106991 Process cartridge smoothly and stably attached to and detached from an image forming apparatus, and an image forming apparatus including the process cartridge Hiroshi Hosokawa, Tetsuroh Miura, Takaaki Tawada, Yoshiyuki Kimura, Hideki Zemba 2006-09-12
7035582 Image forming apparatus and process cartridge including lubricant applying device that prevents waste of lubricant Takeo Suda, Takaaki Tawada, Chohtaroh Kataoka 2006-04-25
6961535 Image forming apparatus Satoshi Takano, Toshihiro Sugiyama, Hiroshi Saitoh, Hirokazu Ishii, Yuji Arai +1 more 2005-11-01
6895209 Cleaning device and image forming apparatus using the same Satoshi Takano, Hiroshi Saitoh, Toshihiro Sugiyama, Hirokazu Ishii, Yuji Arai 2005-05-17
6813467 Image forming apparatus Satoshi Takano, Toshihiro Sugiyama, Hiroshi Saitoh, Hirokazu Ishii, Yuji Arai +1 more 2004-11-02
6807390 Image forming apparatus Takeo Suda, Masanori Kawasumi, Ken Amemiya, Hiroshi Ono, Hiroshi Mizusawa 2004-10-19
6522855 Image forming apparatus and developing apparatus preventing uneven image density Shunji Katoh, Hideo Yoshizawa, Shinji Tamaki, Junichi Terai, Kiyonori Tsuda +3 more 2003-02-18
6337957 Image forming apparatus and developing device with improved self toner density control Shinji Tamaki, Tsuyoshi Imamura, Hideo Yoshizawa, Junichi Terai, Masayuki Yamane +5 more 2002-01-08
5909609 Image forming apparatus with provisions for supplying toner therein Masasumi Yahata, Shunji Kato, Yuji Kitajima, Satoshi Takano, Nobuo Kikuchi +1 more 1999-06-01
5493365 Operating section for an image forming apparatus Hideaki Matsui, Nobuaki Tomidokoro, Shigeru Yoshiki, Shigeru Watanabe, Yasuhiro Kawashima +6 more 1996-02-20
4988853 Ticket checking/issuing apparatus in which friction holds a ticket while recording/reproducing data Masayoshi Nagashima 1991-01-29