YY

Yasuyuki Yamashita

Ricoh Company: 36 patents #442 of 9,818Top 5%
Overall (All Time): #91,509 of 4,157,543Top 3%
36
Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
8224224 Cleaning blade and image forming apparatus, process cartridge, and image forming method using the same Masahiro Ohmori, Yohta Sakon, Masanobu Gondoh, Sayaka Katoh 2012-07-17
8041281 Cleaning device, image forming apparatus, and process cartridge Naomi Sugimoto, Hidetoshi Yano, Kenji Sugiura, Osamu Naruse 2011-10-18
8007972 Electrophotographic photoconductor, and image forming apparatus, process cartridge and image forming method using the same Eiji Kurimoto, Keisuke Shimoyama, Michio Kimura, Shinichi Kawamura, Takeshi Takada +2 more 2011-08-30
7960081 Electrophotographic photoreceptor having N-alkoxymethylated nylon intermediate layer, and image forming apparatus having the electrophotographic photoreceptor Takeshi Orito, Naohiro Toda 2011-06-14
7929897 Cleaning unit, process cartridge, and image forming apparatus using the same Naomi Sugimoto, Hidetoshi Yano, Kenji Sugiura, Osamu Naruse 2011-04-19
7873298 Cleaning device, process cartridge, and image forming apparatus Hidetoshi Yano, Oasamu Naruse, Naomi Sugimoto, Kenji Sugiura 2011-01-18
7560204 Latent electrostatic image bearing member, and the method for producing the same, image forming method, image forming apparatus, and process cartridge Naohiro Toda, Takeshi Orito 2009-07-14
7537872 Image bearing member with charge blocking layer and moire prevention layer, and image forming apparatus and process cartridge using the same Naohiro Toda, Takeshi Orito 2009-05-26
7341810 Electrophotographic photoreceptor method of manufacturing electrophotographic photoreceptor, and electrophotographic apparatus and process cartridge using electrophotographic photoreceptor Eiji Kurimoto 2008-03-11
7314693 Electrophotographic photoconductor, electrophotographic process, electrophotographic apparatus, and process cartridge Takaaki Ikegami, Shinji Nohsho, Eiji Kurimoto, Hidetoshi Kami, Akihiro Sugino +2 more 2008-01-01
7267916 Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the electrophotographic photoreceptor Akihiro Sugino, Shinji Nousho, Takaaki Ikegami, Eiji Kurimoto, Hideo Nakamori +1 more 2007-09-11