Inventor
KATAYAMA YUKARI
JP26 patents
⚠️ This page may combine multiple inventors who share the name “KATAYAMA YUKARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
21 patentsUS6651212B1Nov 18, 2003
Recording/reproduction device, semiconductor memory, and memory card using the semiconductor memory
HITACHI LTD142 citations98
US5715105AFeb 3, 1998
Method of and apparatus for recording on and reproducing from disk-type recording medium having recording tracks with sectors each having an ID area and a data area
HITACHI LTD43 citations96
US6317281B1Nov 13, 2001
Disk storage device having identification information for protecting stored data
HITACHI LTD42 citations92
US6108158AAug 22, 2000
Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores
HITACHI LTD33 citations92
US5771248AJun 23, 1998
Apparatus and method for error correction
HITACHI LTD33 citations92
US7155015B2Dec 26, 2006
Optical disk apparatus and data randomizing method using for optical disk apparatus
HITACHI LTD13 citations84
US6492915B2Dec 10, 2002
Method for recording information, method for reproducing information, and information recording apparatus
HITACHI LTD14 citations84
US6646574B2Nov 11, 2003
Method for recording information, method for reproducing information, and information recording apparatus
HITACHI LTD6 citations74
US6400523B1Jun 4, 2002
Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores
HITACHI LTD10 citations74
US6236528B1May 22, 2001
Method and apparatus for recording and reproducing disk-type recording medium with dual head including reading head and writing head having offset cores
HITACHI LTD8 citations74
US7216286B2May 8, 2007
Data reproducing method and data reproducing apparatus
HITACHI LTD4 citations63
US7124344B2Oct 17, 2006
Error correction coding and decoding apparatuses
HITACHI LTD3 citations63
US6918079B2Jul 12, 2005
Recording method, reproducing method, recording apparatus, and reproducing apparatus
HITACHI LTD2 citations63
USRE39253EAug 29, 2006
Apparatus and method for error correction
HITACHI LTD3 citations58
US8356235B2Jan 15, 2013
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
HITACHI LTD0 citations52
US7657817B2Feb 2, 2010
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
HITACHI LTD0 citations52
US7647542B2Jan 12, 2010
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
HITACHI LTD0 citations52
US7620874B2Nov 17, 2009
Recording method for recording data on a recording medium
HITACHI LTD0 citations52
US7594155B2Sep 22, 2009
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
HITACHI LTD0 citations52
US7590915B2Sep 15, 2009
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
HITACHI LTD0 citations52
US7281194B2Oct 9, 2007
Recording method for recording data on a recording medium
HITACHI LTD0 citations52
KATAYAMA YUKARI
4 patentsUS8699803B2Apr 15, 2014
Display driving circuit
KATAYAMA YUKARI6 citations71
US8576255B2Nov 5, 2013
Image correction method and image display device
KATAYAMA YUKARI2 citations62
US8325128B2Dec 4, 2012
Display device and driving circuit thereof
KATAYAMA YUKARI4 citations61
US8154498B2Apr 10, 2012
Display device
KATAYAMA YUKARI3 citations61