Inventor
ISAKA HARUO
JP30 patents
⚠️ This page may combine multiple inventors who share the name “ISAKA HARUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
25 patentsUS5432646AJul 11, 1995
Apparatus for recording video signals and index signals on tracks of a magnetic tape
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31 citations92
US4785441ANov 15, 1988
Tracking error correction apparatus utilizing phase difference information derived from four photocells
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD46 citations92
US5258879ANov 2, 1993
Tracking error detection circuit of magnetic recording and reproduction apparatus for determining tracking error based on pilot signals recorded on a recording meedium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations82
US4740940AApr 26, 1988
Optical information read apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations82
US5953482ASep 14, 1999
Magnetic recording/reproducing apparatus with the recording/reproducing heads preceding the erasing heads
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US5546248AAug 13, 1996
Reproducing apparatus that performs tracking control and phase control for a signal recorded in plural tracks of a tape medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US5510938AApr 23, 1996
Tracking control apparatus which uses pilot signals to control a capstan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations74
US5490017AFeb 6, 1996
Signal reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US5432655AJul 11, 1995
Multiple channel magnetic recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations74
US6266479B1Jul 24, 2001
Video signal recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US5754356AMay 19, 1998
Tracking error detector with comparison of amplitude detected pilot signals leaking in from tracks adjacent to the target track
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73
US5343338AAug 30, 1994
Tape drive apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD11 citations73
US6804072B1Oct 12, 2004
Recording head clogging detection method and its device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations69
US5469304ANov 21, 1995
Tape medium recording and/or reproducing apparatus capable of minimizing deviation of recording position
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US5455719AOct 3, 1995
Data recording method in which pilot signal period coincides with cumulative bit disparities of insert data
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US5371604ADec 6, 1994
Apparatus for edit recording of a compressed digital video signal on a recording tape
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US5115422AMay 19, 1992
Information reproducing apparatus for detecting a reproduced area on a disc
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations63
US4989196AJan 29, 1991
Optical information recording apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US6424483B1Jul 23, 2002
Control system of tape travel for a magnetic recording and reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US5594602AJan 14, 1997
Tracking error detecting circuit
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations62
US5477398ADec 19, 1995
Apparatus for editing data in a selected area on a track of a tape recording medium
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US5313338AMay 17, 1994
Editing device which selectively edits a section of a helical track
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations62
US7130147B2Oct 31, 2006
Magnetic recording/reproducing apparatus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations60
US5793925AAug 11, 1998
Recording method and apparatus for control track
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations52
USRE39029EMar 21, 2006
Magnetic recording/reproducing apparatus with the recording/reproducing heads preceding the erasing heads
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD0 citations39