YK

Yukari Katayama

HI Hitachi: 21 patents #1,645 of 28,497Top 6%
HD Hitachi Displays: 2 patents #384 of 752Top 55%
RE Renesas Electronics: 2 patents #1,855 of 4,529Top 45%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
Overall (All Time): #155,550 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 25 most recent of 26 patents

Patent #TitleCo-InventorsDate
8699803 Display driving circuit Akihito Akai, Yoshiki Kurokawa, Yusuke Uchida 2014-04-15
8576255 Image correction method and image display device Yasuyuki Kudo, Norio Mamba, Yoshinori Tanaka 2013-11-05
8552946 Display device, display driver and image display method Yoshiki Kurokawa, Hiroki Awakura, Naoki Takada, Yasuyuki Kudo, Akihito Akai +3 more 2013-10-08
8356235 Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2013-01-15
8325128 Display device and driving circuit thereof Yoshiki Kurokawa, Akihito Akai, Goro Sakamaki 2012-12-04
8154498 Display device Yasuyuki Kudo, Norio Mamba, Toshimitsu Matsudo 2012-04-10
7657817 Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2010-02-02
7647542 Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2010-01-12
7620874 Recording method for recording data on a recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2009-11-17
7594155 Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2009-09-22
7590915 Recording and reproducing data to/from a recording medium having a user data area and an information area for storing information about the recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2009-09-15
7281194 Recording method for recording data on a recording medium Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2007-10-09
7216286 Data reproducing method and data reproducing apparatus Taku Hoshizawa 2007-05-08
7155015 Optical disk apparatus and data randomizing method using for optical disk apparatus Takeshi Maeda, Shigeki Taira, Harukazu Miyamoto, Osamu Kawamae 2006-12-26
7124344 Error correction coding and decoding apparatuses Shigeki Taira, Takeshi Maeda, Harukazu Miyamoto 2006-10-17
RE39253 Apparatus and method for error correction Shoichi Miyazawa, Hitoshi Ogawa, Masatoshi Nishina 2006-08-29
6918079 Recording method, reproducing method, recording apparatus, and reproducing apparatus Osamu Kawamae, Taku Hoshizawa, Harukazu Miyamoto, Shigeki Taira 2005-07-12
6651212 Recording/reproduction device, semiconductor memory, and memory card using the semiconductor memory Kazuo Nakamura 2003-11-18
6646574 Method for recording information, method for reproducing information, and information recording apparatus Takeshi Maeda, Hiroyuki Minemura 2003-11-11
6492915 Method for recording information, method for reproducing information, and information recording apparatus Takeshi Maeda, Hiroyuki Minemura 2002-12-10
6400523 Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores Hitoshi Ogawa, Motoyasu Tsunoda, Tsuneo Hirose, Akira Kojima, Eisaku Saiki +4 more 2002-06-04
6317281 Disk storage device having identification information for protecting stored data Hitoshi Ogawa, Motoyasu Tsunoda, Akira Kojima, Eisaku Saiki 2001-11-13
6236528 Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores Hitoshi Ogawa, Motoyasu Tsunoda, Tsuneo Hirose, Akira Kojima, Eisaku Saiki +4 more 2001-05-22
6108158 Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores Hitoshi Ogawa, Motoyasu Tsunoda, Tsuneo Hirose, Akira Kojima, Eisaku Saiki +4 more 2000-08-22
5771248 Apparatus and method for error correction Shoichi Miyazawa, Hitoshi Ogawa, Masatoshi Nishina 1998-06-23