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 76–100 of 154 patents

Patent #TitleCo-InventorsDate
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
7783535 Video game apparatus and information storage medium for video game Shigeru Miyamoto, Yoshiaki Koizumi, Toshio Iwawaki 2010-08-24
7744465 Game machine and data storage medium having stored therein game program Ryunosuke Suzuki, Tomoaki Yoshinobu, Takayuki Shimamura 2010-06-29
7731591 Game apparatus and backup writing control method Daiki Iwamoto, Koichi Kawamoto, Naoki Koga 2010-06-08
7713129 Image processing system Tomoaki Yoshinobu 2010-05-11
7653262 Collision detection having cylindrical detection regions Eiji Aonuma, Hajime Nakamura, Hiroshi Umemiya 2010-01-26
7639977 Image forming apparatus that performs charge elimination after secondary transfer to prevent winding of recording medium on intermediate transfer member Mikio Furumizu, Masahiro Maeda, Takatomo Fukumoto 2009-12-29
7635305 Game system and storage medium storing game program Minoru Narita 2009-12-22
7618325 Game apparatus and storage medium storing game program Minoru Narita 2009-11-17
7609993 Image forming apparatus that prevents developer from spilling Masahiro Maeda, Mamoru Mizunokura, Takatomo Fukumoto, Fuyuto Yamashita 2009-10-27
7609990 Image forming apparatus that prevents toner from being jetted when cleaner blade or sealing member is separated from image carrier Masahiro Maeda, Takatomo Fukumoto 2009-10-27
7576739 Storage medium having game program stored therein, and game apparatus and game processing method therefor Koji Kitagawa, Shinko Takeshita, Kazuaki Morita 2009-08-18
7565099 Developing device and image forming apparatus having a toner-particle bearing roller with a helical groove portion Tomohiro Aruga, Noboru Sakurai, Masanao Kunugi, Katsumi Okamoto, Hiroshi Kato 2009-07-21
7555252 Image forming apparatus that prevents conspicuous unevenness in image density Tomohiro Aruga, Noboru Sakurai, Takatomo Fukumoto 2009-06-30
7536126 Apparatus for forming image-quality evaluation image Takayuki Kawakami, Takashi Hama, Takatomo Fukumoto 2009-05-19
7529428 Image processing apparatus and storage medium storing image processing program Soichi Nakajima 2009-05-05
7474103 Storage medium having game program stored thereon and game apparatus Kenji Matsutani, Toshio Iwawaki 2009-01-06
7467998 Puzzle game apparatus, storage medium storing puzzle game program, and puzzle game controlling method Minoru Narita 2008-12-23
7437102 Image forming apparatus with controlled adjustment of toner stored in developing cartridge Ken Ikuma 2008-10-14
7420594 Image processing apparatus with image sensing capability and storage medium storing an image processing program Tsutomu Araki 2008-09-02
7411612 Photographed image composing apparatus and a storage medium storing a photographed image composing program Takao Sawano, Tsutomu Araki 2008-08-12