P

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 patents
US6651212B1Nov 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 patents

KUROKAWA YOSHIKI

1 patent