YI

Yasuyuki Ishii

Ricoh Company: 7 patents #63 of 1,683Top 4%
📍 Yokohama, CA: #14 of 147 inventorsTop 10%
Overall (2011): #6,894 of 364,097Top 2%
7
Patents 2011

Issued Patents 2011

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8073350 Developing apparatus, image forming apparatus, and process cartridge Hideki Kosugi, Tomoko Takahashi, Masaaki Yamada, Ichiro Kadota, Yoshinori Nakagawa 2011-12-06
8041267 Developing device, process cartridge, and image forming apparatus Yoshinori Nakagawa, Masaaki Yamada, Hideki Kosugi, Tomoko Takahashi, Ichiro Kadota 2011-10-18
8041268 Developing device, process cartridge, and image forming apparatus Tomoko Takahashi, Yoshinori Nakagawa, Masaaki Yamada, Ichiroh Kadota, Hideki Kosugi 2011-10-18
8005409 Development device Hideki Kosugi, Tomoko Takahashi, Yoshinori Nakagawa, Masaaki Yamada, Ichiro Kadota 2011-08-23
7920812 Development device and image forming apparatus that uses this device Hideki Kosugi, Tomoko Takahashi, Masaaki Yamada, Ichiro Kadota, Yoshinori Nakagawa 2011-04-05
7912410 Developing device, a process cartridge and an image forming apparatus including a toner carrier and a voltage supply Tomoko Takahashi, Hideki Kosugi, Ichiro Kadota, Masaaki Yamada, Yoshinori Nakagawa 2011-03-22
7907856 Development apparatus and image forming apparatus using toner carrier with a plurality of electrodes Takeo Tsukamoto, Nobuaki Kondoh, Masanori Horike, Tomoko Takahashi, Masaaki Yamada +3 more 2011-03-15