Inventor
FUKUDA SHINICHI
JP70 patents
⚠️ This page may combine multiple inventors who share the name “FUKUDA SHINICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
36 patentsUS6594740B1Jul 15, 2003
Recording/reproducing device and recording/reproducing method
SONY CORP112 citations98
US5861780AJan 19, 1999
Variable frequency ring oscillator and phase locked loop circuit to which the ring oscillator is adapted
SONY CORP65 citations96
US7299401B2Nov 20, 2007
Error correction code recording method and recording apparatus using the same
SONY CORP35 citations93
US6469239B1Oct 22, 2002
Data storage apparatus and data storage method with quality degrading features
SONY CORP41 citations93
US5844736ADec 1, 1998
Dual-mode digital signal recording and/or reproducing apparatus
SONY CORP25 citations93
US5428648AJun 27, 1995
Digital PLL circuit having signal edge position measurement
SONY CORP22 citations93
US4626826ADec 2, 1986
Method and apparatus for encoding and decoding an NRZI digital signal with low DC component and minimum low frequency components
SONY CORP32 citations93
US11271428B2Mar 8, 2022
Energy receiver, detection method, power transmission system, detection device, and energy transmitter
SONY CORP11 citations86
US9455593B2Sep 27, 2016
Electronic unit and feed system
SONY CORP5 citations84
US7813066B2Oct 12, 2010
Magnetic recording and reproduction method, recording apparatus, reproduction apparatus and magnetic recording medium
SONY CORP10 citations83
US7636219B2Dec 22, 2009
Magnetic recording and reproducing apparatus and magnetic recording and reproducing method
SONY CORP10 citations83
US6175461B1Jan 16, 2001
Rotary head block with rotary transformer having separate channels for power signal and playback signal
SONY CORP19 citations82
US6570079B2May 27, 2003
Recording and reproducing apparatus, recording and reproducing method, and data processing apparatus
SONY CORP7 citations74
US6278569B1Aug 21, 2001
Signal recording apparatus and method
SONY CORP7 citations74
US5644307AJul 1, 1997
Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus
SONY CORP9 citations74
US4617552AOct 14, 1986
Method and apparatus for converting a digital data
SONY CORP11 citations74
US4598267AJul 1, 1986
Method and apparatus for converting a digital signal
SONY CORP19 citations74
US4577180AMar 18, 1986
Digital data converting method and apparatus thereof
SONY CORP13 citations74
US4523237AJun 11, 1985
Method and apparatus for recording and reproducing an analog signal
SONY CORP18 citations74
US10547213B2Jan 28, 2020
Electronic unit and feed system
SONY CORP2 citations73
US10003216B2Jun 19, 2018
Non-contact electric power feeding system, terminal device, non-contact electric power feeding device, and non-contact electric power feeding method
SONY CORP3 citations73
US9847814B2Dec 19, 2017
Electronic apparatus and transmission system
SONY CORP2 citations73
US9360508B2Jun 7, 2016
Detecting device, power receiving device, contactless power transmission system, and detecting method
SONY CORP3 citations73
US7180806B2Feb 20, 2007
Memory device, refresh control circuit to be used for the memory device, and refresh method
SONY CORP9 citations72
US10432322B2Oct 1, 2019
Transmission/reception device and transmission/reception method
SONY CORP1 citations63
US10027176B2Jul 17, 2018
Electronic unit and feed system
SONY CORP1 citations63
US9935504B2Apr 3, 2018
Detecting device, power receiving device, contactless power transmission system, and detecting method
SONY CORP1 citations63
US6515836B2Feb 4, 2003
Magneto-resistive effect type magnetic head and magnetic tape apparatus
SONY CORP5 citations63
US5313339AMay 17, 1994
Apparatus using a rotary head for recording digital video and audio signals at double speed
SONY CORP3 citations63
US5202801AApr 13, 1993
Integrated circuit for producing sensor detection signals in a recording/reproducing apparatus
SONY CORP5 citations63
US5065413ANov 12, 1991
Phase locked loop circuit
SONY CORP6 citations63
US11990771B2May 21, 2024
Detection apparatus, electric power receiving apparatus, electric power transmission apparatus, wireless electric power transmission system, and detection method
SONY CORP1 citations62
US11128177B2Sep 21, 2021
Electronic unit and feed system
SONY CORP0 citations62
US11011930B2May 18, 2021
Energy receiver, detection method, power transmission system, detection device, and energy transmitter
SONY CORP0 citations62
US9660699B2May 23, 2017
Detection apparatus, electric power receiving apparatus, electric power transmission apparatus, wireless electric power transmission system, and detection method
SONY CORP1 citations62
US10819150B2Oct 27, 2020
Non-contact electric power feeding system, terminal device, non-contact electric power feeding device, and non-contact electric power feeding method
SONY CORP0 citations52
NAKANO HIROAKI
3 patentsUS9530558B2Dec 27, 2016
Energy receiver, detection method, power transmission system, detection device, and energy transmitter
NAKANO HIROAKI29 citations93
US9806769B2Oct 31, 2017
Electromagnetically-coupled state detection circuit, power transmission apparatus, contactless power transmission system, and electromagnetically-coupled state detection method
NAKANO HIROAKI7 citations83
US9467205B2Oct 11, 2016
Detection apparatus, electric power receiving apparatus, electric power transmission apparatus, wireless electric power transmission system, and detection method
NAKANO HIROAKI5 citations83
GOTO TETSURO
2 patentsSONY GROUP CORP
2 patentsNIPPON STEEL CORP
1 patentMURAKAMI Tomomichi
1 patentC/O SONY CORP
1 patentMURAYAMA YUJI
1 patentHITACHI SHIPBUILDING ENG CO
1 patentKATO YOSHIHIRO
1 patentSONY SEMICONDUCTOR SOLUTIONS CORP
1 patentShowing the top 50 of 70 patents by PatentIndex Score.