YI

Yukiko Iwasaki

Ricoh Company: 30 patents #620 of 9,818Top 7%
Canon: 23 patents #2,685 of 19,416Top 15%
Overall (All Time): #49,399 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 1–25 of 53 patents

Patent #TitleCo-InventorsDate
9891548 Image forming method, toner, and image forming apparatus Takamasa Hase, Minoru Masuda, Tsuneyasu Nagatomo, Kenji Yoneda 2018-02-13
9104159 Image forming apparatus Jun Shiori, Jun Yura, Masaki Sukesako, Hiroyuki Sugiyama, Kazuaki Kamihara +1 more 2015-08-11
9042802 Image forming apparatus Takamasa Hase, Shinya Nakayama, Atsushi Yamamoto, Hideyuki Santo, Minoru Masuda +1 more 2015-05-26
8903256 Image forming apparatus and image forming method used in the apparatus Jun Shiori, Masaki Sukesako, Hiroyuki Sugiyama, Kazuaki Kamihara, Hironobu Takeshita 2014-12-02
8849142 Image forming device Hiroyuki Sugiyama, Jun Yura, Tokuya Ohjimi, Jun Shiori, Masaki Sukesako +3 more 2014-09-30
8737866 Image forming apparatus including a controller to control a cooling device to cool the image forming apparatus Jun Shiori, Jun Yura, Masaki Sukesako, Hiroyuki Sugiyama, Kazuaki Kamihara +1 more 2014-05-27
8731417 Image forming apparatus with temperature dependent control unit Jun Shiori, Masaki Sukesako, Hiroyuki Sugiyama, Kazuaki Kamihara, Hironobu Takeshita 2014-05-20
8655214 Image forming apparatus for fixing a not-yet-fixed image Hiroyuki Sugiyama, Jun Yura, Tokuya Ojimi, Jun Shiori, Masaki Sukesako +2 more 2014-02-18
8199381 Pasting apparatus and image forming apparatus Kazuhisa Sudo, Mikio Ishibashi, Reki Nakamura, Megumi Ohtoshi, Kazuhiko Yuki +3 more 2012-06-12
8023877 Image forming apparatus capable of forming glossy color image Kazuhisa Sudo, Mikio Ishibashi, Megumi Ohtoshi, Reki Nakamura, Masafumi Yamada +2 more 2011-09-20
7997320 Sheet cutter and image forming apparatus including the sheet cutter Kohsuke Yamamoto, Kazuhisa Sudo, Reki Nakamura, Takehide Mizutani, Mikio Ishibashi +5 more 2011-08-16
7960084 Method of preparing information recording medium Nobuyuki Koinuma, Mikio Ishibashi, Kazuhisa Sudo, Megumi Ohtoshi, Reki Nakamura +2 more 2011-06-14
7909081 Sheet laminator, image forming apparatus, and sheet laminating method Kazuhisa Sudo, Mikio Ishibashi, Reki Nakamura, Megumi Ohtoshi, Kazuhiko Yuki +5 more 2011-03-22
7883089 Image forming apparatus Kazuhisa Sudo, Mikio Ishibashi, Megumi Ohtoshi, Reki Nakamura, Masafumi Yamada +3 more 2011-02-08
7865121 Image forming apparatus and recording medium Kazuhisa Sudo, Reki Nakamura, Mikio Ishibashi, Nobuyuki Koinuma, Toshihiro Sugiyama +3 more 2011-01-04
7817953 Image recording medium, sheet feeding device, and image forming apparatus Mikio Ishibashi, Reki Nakamura, Kazuhisa Sudo, Megumi Ohtoshi, Masafumi Yamada +4 more 2010-10-19
7344615 Method and apparatus for performing a charging process on an image carrying device Masumi Sato, Hiroshi Yoshinaga, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more 2008-03-18
7175706 Process of producing multicrystalline silicon substrate and solar cell Masaki Mizutani, Shunichi Ishihara, Katsumi Nakagawa, Hiroshi Sato, Takehito Yoshino +3 more 2007-02-13
7027747 Method of and apparatus for forming image using a Non-Contact Charger Ken Amemiya 2006-04-11
6977022 Method and apparatus for performing a charging process on an image carrying device Masumi Sato, Hiroshi Yoshinaga, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more 2005-12-20
6873809 Image forming apparatus and cleaning device therefor Ken Amemiya 2005-03-29
6818104 Anodizing apparatus Shoji Nishida, Kiyofumi Sakaguchi, Noritaka Ukiyo 2004-11-16
6802926 Method of producing semiconductor thin film and method of producing solar cell using same Masaki Mizutani, Isao Tanikawa, Katsumi Nakagawa, Tatsumi Shoji, Noritaka Ukiyo 2004-10-12
6778790 Fixing device capable of preventing excessive increase in temperature Hiroshi Yoshinaga, Motokazu Yasui, Masanao Ehara, Hideo Furukawa 2004-08-17
6778797 Charging roller having elastic member Masumi Sato, Hitoshi Ishibashi, Hiroshi Yoshinaga, Takatsugu Fujishiro, Masami Hiramatsu 2004-08-17