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 101–125 of 154 patents

Patent #TitleCo-InventorsDate
7409171 Image forming apparatus and method having an intermediate transfer member with a multilayer structure that prevents abnormal images due to abnormal discharges Masahiro Maeda 2008-08-05
7394731 Information playback apparatus Tomohiko Kimura, Koichiro Sakata, Takeaki Funada, Hiroyuki Isobe, Junichi Takagaki +3 more 2008-07-01
7379679 Image forming apparatus and method with plural developers each storing toner of the same color Keiichi Taguchi 2008-05-27
7359662 Image forming apparatus with control blade having an arcuate shape Katsumi Okamoto 2008-04-15
7356272 Image forming apparatus with developing roller that rotates during standby to ensure toner uniformity Keiichi Taguchi 2008-04-08
7349749 Audio signal mixer for long mix editing Takeaki Funada, Gen Inoshita 2008-03-25
7340188 Image forming apparatus and system containing detachable developer containers Keiichi Taguchi 2008-03-04
7327973 Image forming apparatus, method for forming an image, computer-readable storage medium, and computer system Takayuki Shiraki, Tatsuro Osawa 2008-02-05
7233757 Image forming apparatus, method for forming an image, computer-readable storage medium, and computer system Takayuki Shiraki, Tatsuro Osawa 2007-06-19
7229349 Multi-player game system and multi-player game program 2007-06-12
7190923 Image forming apparatus, method for forming an image, computer-readable storage medium, and computer system Takayuki Shiraki, Tatsuro Osawa 2007-03-13
7123863 Image forming apparatus with rotary unit that can accommodate a plurality of development cartridges Ken Ikuma 2006-10-17
7085520 Developing device, image forming apparatus, and image forming system Keiichi Taguchi 2006-08-01
7065310 Image forming apparatus that quickly removes ozone present in the vicinity of a corona charger Masahiro Maeda, Takatomo Fukumoto 2006-06-20
7042814 Information playback apparatus Tomohiko Kimura, Koichiro Sakata, Takeaki Funada, Hiroyuki Isobe, Junichi Takagaki +3 more 2006-05-09
7031243 Beat density detecting apparatus and information playback apparatus Tomohiko Kimura, Koichiro Sakata, Hiroyuki Isobe, Yuuji Murai, Mituo Fukuda +3 more 2006-04-18
6992648 Brightness adjusting apparatus of reflective type liquid crystal display device and program of game machine 2006-01-31
6970177 Image processing system Tomoaki Yoshinobu 2005-11-29
6941100 Developer bearing member, method for producing developer bearing member, developing device, image-forming apparatus, and computer system Takehiko Okamura 2005-09-06
6923722 Game system and game program for providing multi-player gameplay on individual displays and a common display Daiki Iwamoto, Kouichi Kawamoto, Naoki Koga 2005-08-02
6889299 Semiconductor integrated circuit 2005-05-03
6889024 Image-forming apparatus and computer system Takayuki Shiraki 2005-05-03
6845073 Playback apparatus for displaying angular position based on remainder corresponding to elapsed time Tomohiko Kimura, Koichiro Sakata, Takeaki Funada, Hiroyuki Isobe, Junichi Takagaki +3 more 2005-01-18
6821204 Game system and game program Eiji Aonuma 2004-11-23
6751167 Information playback apparatus Tomohiko Kimura, Koichiro Sakata, Takeaki Funada, Hiroyuki Isobe, Junichi Takagaki +3 more 2004-06-15