Inventor
FUKUYAMA MUNEKATSU
JP23 patents
⚠️ This page may combine multiple inventors who share the name “FUKUYAMA MUNEKATSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
22 patentsUS4703378AOct 27, 1987
Magnetic transducer head utilizing magnetoresistance effect
SONY CORP52 citations96
US4691259ASep 1, 1987
Magnetic transducer head utilizing magnetoresistance effect
SONY CORP55 citations95
US6859789B1Feb 22, 2005
Information recording medium and information processing device
SONY CORP34 citations92
US6754155B1Jun 22, 2004
Information recording medium and information processing device
SONY CORP27 citations92
US5872691AFeb 16, 1999
Thin film magnetic head, magnetoresistance effect magnetic head and composite magnetic head
SONY CORP18 citations92
US5822159AOct 13, 1998
Thin-film magnetic head, magnetoresistance effect magnetic head and composite magnetic head
SONY CORP41 citations92
US5548453AAug 20, 1996
Reproducing circuit for magneto-resistive head having an initial amplifying stage, a differential amplifying stage, and means for controlling the time of operation thereof
SONY CORP22 citations92
US5313342AMay 17, 1994
Analog/digital compatible reproducing system
SONY CORP27 citations92
US5260836ANov 9, 1993
Apparatus for reproducing digital and analog audio signals
SONY CORP23 citations90
US9446937B2Sep 20, 2016
Functional device, acceleration sensor, and switch
SONY CORP8 citations84
US4734644AMar 29, 1988
Flux cancelling yoke type magnetic transducer head
SONY CORP24 citations82
US5828510AOct 27, 1998
Magnetic disk recording and playback apparatus using independently formed recorded pattern sets for clock generation
SONY CORP10 citations74
US5828509AOct 27, 1998
Magnetic disk recording and playback apparatus using independently formed recorded pattern sets for clock generation
SONY CORP5 citations74
US5786954AJul 28, 1998
Magnetic disk recording and playback apparatus using independently positioned recorded pattern sets for clock generation
SONY CORP8 citations74
US5424890AJun 13, 1995
Magnetoresistance effect type thin film head
SONY CORP8 citations74
US5416645AMay 16, 1995
Reproducing circuit having common base amplifier, low-pass filter and peak detector for use with magnetoresistive head
SONY CORP11 citations74
US10287160B2May 14, 2019
Electrostatic device
SONY CORP2 citations73
US5959798ASep 28, 1999
Reproducing circuit for a magnetic head having a variable gain amplifier with selective adjustment of the gain during recording and reproduction
SONY CORP12 citations73
US5940235AAug 17, 1999
Reproducing circuit for a magnetic head incorporating the voltage-to-current and an exponent current amplifier
SONY CORP5 citations73
US10669150B2Jun 2, 2020
Electrostatic device
SONY CORP0 citations52
US9953128B2Apr 24, 2018
Identification apparatus, control apparatus, identification method, program, and identification system
SONY CORP0 citations52
US5689225ANov 18, 1997
Method for driving magneto-resistive element
SONY CORP0 citations52