KU

Kazuyo Umezawa

KT Kabushiki Kaisha Toshiba: 53 patents #302 of 21,451Top 2%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
Overall (All Time): #47,796 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #TitleCo-InventorsDate
7778144 Optical recording medium, information recording method, and information reproducing method Koji Takazawa, Seiji Morita, Naoki Morishita, Yasuaki Ootera, Hideo Ando +1 more 2010-08-17
7715304 Optical recording medium, information recording method, and information reproducing method Koji Takazawa, Seiji Morita, Naoki Morishita, Yasuaki Ootera, Hideo Ando +1 more 2010-05-11
7512046 Optical disk apparatus and method for controlling the same Ryosuke Yamamoto, Yoshiyuki Ishizawa 2009-03-31
7033659 Optical information recording medium and method of recording and reproducing information on and from optical information recording medium Hiroshi Shirai, Reiji Tamura, Makoto Iimura, Akira Kashiwakura, Kazuyoshi Adachi 2006-04-25