KY

Kazutaka Yamamoto

Ricoh Company: 28 patents #700 of 9,818Top 8%
Brother Kogyo: 15 patents #599 of 2,767Top 25%
PA Panasonic: 11 patents #2,326 of 21,108Top 15%
SE Seiko Epson: 3 patents #3,864 of 7,774Top 50%
MC Mamiya-Op Co.: 3 patents #1 of 10Top 10%
SE Seikagaku: 3 patents #48 of 253Top 20%
SO Sony: 1 patents #17,262 of 25,231Top 70%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
AB Asahi Breweries: 1 patents #26 of 116Top 25%
Overall (All Time): #32,556 of 4,157,543Top 1%
66
Patents All Time

Issued Patents All Time

Showing 51–66 of 66 patents

Patent #TitleCo-InventorsDate
7278452 Filler for filling drink liquid Masatake Taguchi, Kaoru Ichihashi 2007-10-09
7245569 Optical disc apparatus 2007-07-17
7215625 Optical disk recording apparatus that records a visible image on an optical disk 2007-05-08
7196990 Information recording scheme for preventing recording failure resulting from impact or vibration 2007-03-27
7057987 Optical disc apparatus 2006-06-06
7020058 Optical disc device varying, detecting and noticing a recording velocity during a recording 2006-03-28
6975573 Information recording scheme for preventing recording failure resulting from impact of vibration 2005-12-13
6967910 Information recording apparatus and method for controlling data writing rate based on data transfer rate so as to improve data writing performance 2005-11-22
6876608 Optical disc apparatus 2005-04-05
6661755 Optical disc apparatus 2003-12-09
6570832 Optical disc apparatus 2003-05-27
6418099 Optical disk apparatus 2002-07-09
6198707 Optical disc apparatus capable of multiple write sessions in a single track 2001-03-06
6163515 Optical disk writing control device 2000-12-19
5686876 Superconducting magnet apparatus Tamaki Masegi, Yutaka Yamada, Shunji Nomura, Toru Kuriyama, Takashi Yazawa 1997-11-11
4835754 Tracking control device of an optical pick-up Toshihiro Shigemori 1989-05-30