SI

Sadayuki Iwai

Ricoh Company: 26 patents #784 of 9,818Top 8%
Overall (All Time): #155,977 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
7962658 Image output apparatus using close range radio contact wherein radio contact element is attached to document on which an image is recorded Yuichiro Kanoshima, Naoto Shiraishi, Hisao Shirasawa, Kazunari Tonami, Yoshinori Hayashi +1 more 2011-06-14
7783209 Image forming apparatus and method of activating the apparatus during filling with developing agent Mugijirou Uno, Yuki Oshikawa 2010-08-24
7715760 Charging device, and process cartridge and image forming apparatus using the same Naomi Sugimoto, Yukimichi Someya, Katsufumi Kumano, Eiichi Ohta 2010-05-11
7715761 Image forming unit, process cartridge, and image forming apparatus Junroh Uda 2010-05-11
7711283 Image forming method and image forming apparatus 2010-05-04
7693466 Method for arranging image forming sections Katsuaki Miyawaki, Takeshi Iijima, Yusuke Takeda, Shuji Hirai, Hideki Kosugi +1 more 2010-04-06
7454528 Image output apparatus using close range radio contact wherein radio contact element is attached to document on which an image is recorded Yuichiro Kanoshima, Naoto Shiraishi, Hisao Shirasawa, Kazunari Tonami, Yoshinori Hayashi +1 more 2008-11-18
7343126 Image forming apparatus including a transfer belt having image forming units disposed thereabout Katsuaki Miyawaki, Takeshi Iijima, Yusuke Takeda, Shuji Hirai, Hideki Kosugi +1 more 2008-03-11
7203452 Tandem image forming device having a side-by-side arrangement of image forming sections Katsuaki Miyawaki, Takeshi Iijima, Yusuke Takeda, Shuji Hirai, Hideki Kosugi +1 more 2007-04-10
7155152 Method of image transfer, method of and apparatus for image forming Tomoko Takahashi, Ayako Iino, Yoshinori Nakagawa, Hideki Kosugi 2006-12-26
7095972 Toner image transfer method, toner image transfer device and image forming apparatus 2006-08-22
6947682 Image forming apparatus for reducing toner scatter Hideki Kosugi, Tomoko Takahashi, Masako Yoshii, Ayako Iino 2005-09-20
6934482 Image formation method for amplifying differences in potential for image and non-image sections of photo sensor 2005-08-23
6912370 Dual sided image printing device and method 2005-06-28
6889030 Image forming apparatus with an intermediate image transfer body and provisions for correcting image transfer distortions Hiroshi Koide 2005-05-03
6792222 Image formation apparatus for amplifying differences in potential for image and non-image sections of photo sensor 2004-09-14
6757512 Tandem image forming device, image forming apparatus and method for using the same Katsuaki Miyawaki, Takeshi Iijima, Yusuke Takeda, Shuji Hirai, Hideki Kosugi +1 more 2004-06-29
6611672 Image forming apparatus, monocolor image forming apparatus, toner recycling apparatus and intermediate transfer member Katsuhiro Aoki, Tsumori Satoh, Misao Tanzawa, Yuuji Sawai, Mitsuru Takahashi +2 more 2003-08-26
6347212 Image forming apparatus having improved image carrier cleaning Hideki Kosugi, Katsuhiro Echigo, Makoto Obu, Takashi Kawashima 2002-02-12
6115576 Image forming apparatus using a developing liquid and including an intermediate transfer body Tohru Nakano, Hideki Kosugi, Yusuke Takeda 2000-09-05
5987281 Image forming apparatus Tsuneo Kurotori, Makoto Obu 1999-11-16
5987282 Image forming apparatus with a developing device using a developing liquid Takeo Tsukamoto, Makoto Obu 1999-11-16
5923930 Apparatus for controlling density of liquid developing solution and apparatus for forming images Takeo Tsukamoto, Makoto Obu, Hideki Kosugi, Mie Yoshino 1999-07-13
5864737 Image forming device which forms an electric field to discharge an object Makoto Obu, Seiichi Miyakawa, Kunio Hibi, Kozoh Sudoh, Hidenori Kanno +3 more 1999-01-26
5809388 Image forming apparatus and fixing device therefor Toshio Inada, Itsuo Ikeda, Tsuneo Kurotori, Yusuke Takeda 1998-09-15