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Yoichi Yamada

SE Seiko Epson: 20 patents #4 of 1,442Top 1%
Nintendo Co.: 1 patents #52 of 189Top 30%
Overall (2011): #475 of 364,097Top 1%
22
Patents 2011

Issued Patents 2011

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
8086152 Developing device, image forming apparatus, image forming system, developing method, and toner bearing member Takatomo Fukumoto 2011-12-27
8086150 Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device Tomohiro Aruga, Noboru Sakurai 2011-12-27
8081911 Development roller, development device, and image forming apparatus Masahiro Maeda, Junichi Suzuki, Takatomo Fukumoto 2011-12-20
8081910 Image forming apparatus and image forming method Atsunori Kitazawa, Takatomo Fukumoto 2011-12-20
8032064 Developer apparatus, image forming apparatus and developing method Takatomo Fukumoto 2011-10-04
8027624 Developer apparatus, an image forming apparatus and an image forming method Masahiro Maeda, Takatomo Fukumoto 2011-09-27
8023868 Development roller, development device, and image forming apparatus Masahiro Maeda, Junichi Suzuki, Takatomo Fukumoto 2011-09-20
8010024 Developer apparatus with restriction member removing toner from convex sections of toner carrier roller Takatomo Fukumoto 2011-08-30
8005407 Developer apparatus with restriction member that restricts thickness of toner layer on toner carrier roller 2011-08-23
7991329 Developer apparatus, image forming apparatus and developing method Takatomo Fukumoto 2011-08-02
7983591 Image forming apparatus method for removing toner from seal member by rotation of toner carrier roller 2011-07-19
7979012 Image forming apparatus and image forming method Atsunori Kitazawa 2011-07-12
7967680 Storage medium having game program stored thereon and game apparatus Hideya Akasaka, Masaaki Tatsumi 2011-06-28
7965965 Development device and image forming apparatus Masahiro Maeda, Yoshiyuki Kurebayashi, Daisuke Matsumoto, Masaru Kobashi, Takatomo Fukumoto 2011-06-21
7945194 Image forming apparatus and image forming system reducing electrical discharge Hiroshi Kato, Tomohiro Aruga, Takatomo Fukumoto 2011-05-17
7929889 Image forming apparatus and image forming method Atsunori Kitazawa 2011-04-19
7907877 Developing device, image forming apparatus, and image forming system 2011-03-15
7907879 Development roller, development device, image forming apparatus, and method of manufacturing development roller Masahiro Maeda, Junichi Suzuki, Takatomo Fukumoto 2011-03-15
7904012 Image carrier cleaning device, image carrier cleaning method, and image forming apparatus Masaru Kobashi, Masahiro Maeda, Atsunori Kitazawa 2011-03-08
7897817 Resin-platinum complex and resin-supported platinum cluster catalyst Yasuhiro Uozumi, Takayasu Arakawa 2011-03-01
7899376 Developing device, image forming apparatus, and image forming system Takatomo Fukumoto, Hiroshi Kato 2011-03-01
7885554 Developing device, image forming apparatus, image forming system, cartridge, developing unit and photoconductor unit Junji Shirokoshi, Katsumi Okamoto, Yuichi Segawa, Satoru Miyamoto, Yasushige Hori +1 more 2011-02-08