YY

Yasuyuki Yamashita

Ricoh Company: 5 patents #145 of 1,683Top 9%
Overall (2011): #13,407 of 364,097Top 4%
5
Patents 2011

Issued Patents 2011

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
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