Inventor
NAKAGAKI HARUSHIGE
JP14 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAKI HARUSHIGE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS4748609AMay 31, 1988
Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset
HITACHI LTD119 citations96
US4707816ANov 17, 1987
Method and apparatus for composite wobbled and push-pull tracking servo system
HITACHI LTD98 citations96
US4409559AOct 11, 1983
Supply voltage controlled stereophonic amplifier system
HITACHI LTD68 citations96
US5532835AJul 2, 1996
Tracking control in apparatus for fast reproducing digital information signal from magnetic tape
HITACHI LTD30 citations92
US4241456ADec 23, 1980
Remote-controlled receiver
HITACHI LTD39 citations92
US5963517AOct 5, 1999
Disk reproducing speed control method and a disk reproducing apparatus using the same
HITACHI LTD38 citations91
US4675855AJun 23, 1987
Reproducing rate control apparatus for information recording disc
HITACHI LTD21 citations82
US4580255AApr 1, 1986
Servo circuit for a signal reproducing apparatus
HITACHI LTD21 citations82
US4427951AJan 24, 1984
Protective device for power amplifier
HITACHI LTD22 citations82
US5341248AAug 23, 1994
Magnetic recording/reproducing apparatus having head structure for selectively recording/reproducing either of two kinds of signals containing different amounts of information
HITACHI LTD17 citations74
US4682314AJul 21, 1987
Disc playback apparatus
HITACHI LTD18 citations74
US4100501AJul 11, 1978
Audio frequency power amplifier
HITACHI LTD8 citations73
US4214299AJul 22, 1980
Frequency-voltage converter
HITACHI LTD7 citations72