Inventor
HIGUCHI SHIGEMITSU
JP42 patents
⚠️ This page may combine multiple inventors who share the name “HIGUCHI SHIGEMITSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
41 patentsUS6501718B1Dec 31, 2002
Disk, recording and reproduction apparatus, and recording and reproduction method
HITACHI LTD56 citations96
US6243340B1Jun 5, 2001
Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessed
HITACHI LTD68 citations96
US4907081AMar 6, 1990
Compression and coding device for video signals
HITACHI LTD137 citations96
US5636316AJun 3, 1997
Picture signal digital processing unit
HITACHI LTD63 citations95
US4401971AAug 30, 1983
Alarm device for a vehicle including priority control for plural alarm conditions
HITACHI LTD105 citations95
US6463022B1Oct 8, 2002
Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same
HITACHI LTD28 citations93
US6373799B1Apr 16, 2002
Optical disk and recording/reproduction apparatus using the same
HITACHI LTD27 citations93
US6657666B1Dec 2, 2003
Method and apparatus for recording image information
HITACHI LTD39 citations92
US6359842B1Mar 19, 2002
Disc having a semiconductor memory
HITACHI LTD39 citations92
US5808824ASep 15, 1998
Tape feed control system
HITACHI LTD30 citations92
US5617535AApr 1, 1997
Recording and playbackk apparatus
HITACHI LTD20 citations92
US5057949AOct 15, 1991
Digital magnetic reproducing apparatus with variable tape speed
HITACHI LTD38 citations92
US4825299AApr 25, 1989
Magnetic recording/reproducing apparatus utilizing phase comparator
HITACHI LTD54 citations92
US5495371AFeb 27, 1996
Magnetic tape library device and method for maintaining magnetic recording and reproducing device and magnetic head
HITACHI LTD30 citations91
US4422109ADec 20, 1983
Magnetic recording and reproducing apparatus automatically adjustable to each individual magnetic tape
HITACHI LTD46 citations91
US6754442B1Jun 22, 2004
Method and apparatus for recording/reproducing digital video signal or audio signal, and optical disk apparatus
HITACHI LTD13 citations84
US4551777ANov 5, 1985
Tracking servo system for magnetic recording and reproducing apparatus using flexible magnetic disk
HITACHI LTD24 citations82
US7174092B2Feb 6, 2007
Method and apparatus for recording/reproducing digital video signal or audio signal, and optical disk apparatus
HITACHI LTD7 citations74
US6788346B2Sep 7, 2004
Camera information recording apparatus for recording image data in an optical disk wherein managing information is stored when the residual storage of a battery decreases
HITACHI LTD8 citations74
US6680897B2Jan 20, 2004
Optical disk and recording/reproduction apparatus using the same
HITACHI LTD12 citations74
US5471352ANov 28, 1995
Recording/playback apparatus in which head and tape are held in intermittent contact during rapid search
HITACHI LTD7 citations74
US5438459AAug 1, 1995
Method of processing and recording data while reproducing the same and apparatus for the method
HITACHI LTD12 citations74
US5739976AApr 14, 1998
Magnetic recording and reproducing apparatus
HITACHI LTD10 citations73
US5144453ASep 1, 1992
Apparatus for delaying longitudinal time code signal for digital video tape recorder
HITACHI LTD12 citations73
US4661754AApr 28, 1987
Control circuit for a stepping motor
HITACHI LTD10 citations73
US4613920ASep 23, 1986
Magnetic head for magnetic disk
HITACHI LTD8 citations73
US4422108ADec 20, 1983
Tape recorder
HITACHI LTD11 citations73
US5041904AAug 20, 1991
Video signal processing circuit
HITACHI LTD14 citations72
US5392163AFeb 21, 1995
Digital video signal reproducing apparatus with compression and expansion of playback time
HITACHI LTD14 citations71
US5027209AJun 25, 1991
Interpolation circuit for digital signal processor
HITACHI LTD8 citations71
US4622603ANov 11, 1986
Head positioning system for magnetic recording/playback apparatus
HITACHI LTD12 citations68
US6347068B2Feb 12, 2002
Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same
HITACHI LTD2 citations63
US5235479AAug 10, 1993
Digital video tape recorder with tracking central circuit for causing positions of existing recorded track and newly recorded track to coincide during editing
HITACHI LTD3 citations63
US6229777B1May 8, 2001
Information recording medium, apparatus and control method therefor
HITACHI LTD4 citations62
US5521769AMay 28, 1996
Magnetic tape drive with displaceable head capable of a re-try operation
HITACHI LTD6 citations62
US5500775AMar 19, 1996
Data recording and reproducing apparatus
HITACHI LTD6 citations62
US5434735AJul 18, 1995
Recording/playback apparatus for controlling contact between a head and a magnetic tape by controlled spouting of air in the vicinity of the head
HITACHI LTD5 citations62
US5737146AApr 7, 1998
Data recording and playback apparatus using a helical scan system with magnetic head for recording and playing back pattern signal for tracking in tracking area within helical track
HITACHI LTD1 citations61
US5488520AJan 30, 1996
Data recording and playback apparatus using helical scan system with magnetic head for recording and playing back pattern signal for tracking in tracking area within helical track
HITACHI LTD4 citations61
US5220477AJun 15, 1993
Cassette tape-loading apparatus
HITACHI LTD3 citations60
US5936791AAug 10, 1999
Helical scan data recording and playback method and apparatus wherein reference helical tracks preceding data recording area on magnetic tape are played back before recording or playback of target data
HITACHI LTD0 citations51