YY

Yoichi Yamada

SE Seiko Epson: 82 patents #54 of 7,774Top 1%
Nintendo Co.: 54 patents #16 of 1,476Top 2%
Pioneer Electronic: 7 patents #244 of 1,840Top 15%
Pioneer: 5 patents #362 of 1,730Top 25%
Fujitsu Limited: 4 patents #7,093 of 24,456Top 30%
Overall (All Time): #5,890 of 4,157,543Top 1%
154
Patents All Time

Issued Patents All Time

Showing 51–75 of 154 patents

Patent #TitleCo-InventorsDate
8202147 Storage medium having game program stored therein and game apparatus Daiki Iwamoto, Shirou Mouri 2012-06-19
8175498 Image forming apparatus and method that charges latent image carrier Masaru Kobashi, Mikio Furumizu 2012-05-08
8175497 Image forming apparatus applying protective agent Masaru Kobashi, Masahiro Maeda, Takatomo Fukumoto 2012-05-08
8170454 Image forming apparatus and image forming method Daisuke Matsumoto, Takatomo Fukumoto 2012-05-01
8147304 Storage medium having game program stored thereon and game apparatus 2012-04-03
8103128 Graphic object collision detection with axis-aligned bounding regions calculated from inclination angle Eiji Aonuma, Hajime Nakamura, Hiroshi Umemiya 2012-01-24
8100765 Storage medium having game program and game apparatus Yoshiyuki Oyama, Keisuke Nishimori, Kazuaki Morita 2012-01-24
8087170 Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus Noboru Sakurai, Junichi Nakahara, Masanao Kunugi, Tomohiro Aruga, Katsumi Okamoto 2012-01-03
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
8086152 Developing device, image forming apparatus, image forming system, developing method, and toner bearing member Takatomo Fukumoto 2011-12-27
8081910 Image forming apparatus and image forming method Atsunori Kitazawa, Takatomo Fukumoto 2011-12-20
8081911 Development roller, development device, and image forming apparatus Masahiro Maeda, Junichi Suzuki, 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
7907879 Development roller, development device, image forming apparatus, and method of manufacturing development roller Masahiro Maeda, Junichi Suzuki, Takatomo Fukumoto 2011-03-15