HK

Hiroki Kuramoto

ND Nitto Denko: 21 patents #121 of 2,479Top 5%
HI Hitachi: 8 patents #5,191 of 28,497Top 20%
HM Hitachi Maxell: 4 patents #247 of 1,211Top 25%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
📍 Ibaraki, JP: #189 of 6,779 inventorsTop 3%
Overall (All Time): #123,591 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
6700852 Information recording medium with recording film with cobalt oxide crystalline particles, and information recording device including the same Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Sumio Hosaka, Motoyasu Terao +2 more 2004-03-02
6665123 Projector Aki Nakajo, Makoto Iida, Masakazu Ogawa, Tatsumi Hasebe, Yoshie Kodera +1 more 2003-12-16
6534206 Information recording media and information recording drive Fumiyoshi Kirino, Nobuyuki Inaba, Hiroki Yamamoto, Takashi Naitou, Ken Takahashi +3 more 2003-03-18
6472047 Magnetic recording disk Fumiyoshi Kirino, Nobuyuki Inaba, Hiroki Yamamoto, Ken Takahashi, Takashi Naitou +3 more 2002-10-29
6410133 Magnetic recording disk, method of the magnetic recording disk and magnetic recording apparatus Fumiyoshi Kirino, Nobuyuki Inaba, Ken Takahashi, Takashi Naitou, Sumio Hosaka +3 more 2002-06-25