MO

Masayuki Ohsawa

Ricoh Company: 6 patents #96 of 1,683Top 6%
Overall (2011): #10,981 of 364,097Top 4%
6
Patents 2011

Issued Patents 2011

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8023867 Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatus Yoshiyuki Takano, Tsuyoshi Imamura, Kyohta Koetsuka, Noriyuki Kamiya, Hiroya Abe +3 more 2011-09-20
7917067 Magnetic field generating member and manufacturing method thereof, magnetic particle support body, image development device, process cartridge and image forming apparatus Yoshiyuki Takano, Kyohta Koetsuka, Noriyuki Kamiya, Mieko Terashima, Rei Suzuki +3 more 2011-03-29
7907876 Developer carrier, development device, process cartridge, and image forming apparatus Tadaaki Hattori, Kyohta Koetsuka, Yoshiyuki Takano, Noriyuki Kamiya, Rei Suzuki +2 more 2011-03-15
7899374 Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same Hiroya Abe, Tsuyoshi Imamura, Kyohta Koetsuka, Tadaaki Hattori, Yoshiyuki Takano +3 more 2011-03-01
7891094 Method of manufacturing a hollow body used in an image forming apparatus Tsuyoshi Imamura, Kyohta Koetsuka, Yoshiyuki Takano, Hiroya Abe, Mieko Terashima +3 more 2011-02-22
7890030 Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatus Takashi Innami, Kyohta Koetsuka, Yoshiyuki Takano, Tadaaki Hattori, Noriyuki Kamiya +3 more 2011-02-15