Inventor
MASUDA TORU
JP42 patents
⚠️ This page may combine multiple inventors who share the name “MASUDA TORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOSIDEN ELECTRONICS CO
11 patentsUS4393283AJul 12, 1983
Jack with plug actuated slide switch
HOSIDEN ELECTRONICS CO120 citations96
US4426558AJan 17, 1984
Jack having an insulating contact operator
HOSIDEN ELECTRONICS CO57 citations95
US4747790AMay 31, 1988
Connector for printed circuit board
HOSIDEN ELECTRONICS CO50 citations92
US4715819ADec 29, 1987
Connector for printed board connection
HOSIDEN ELECTRONICS CO33 citations92
US4659167AApr 21, 1987
Jack with recessed contacts
HOSIDEN ELECTRONICS CO29 citations92
USD293432SDec 29, 1987
Electrical connecting plug
HOSIDEN ELECTRONICS CO20 citations82
US4493526AJan 15, 1985
Jack
HOSIDEN ELECTRONICS CO21 citations82
US4685212AAug 11, 1987
Method of manufacturing a jack
HOSIDEN ELECTRONICS CO8 citations73
US4595805AJun 17, 1986
Switch structure comprising recessed contacts
HOSIDEN ELECTRONICS CO4 citations63
USRE35039ESep 26, 1995
Method of manufacturing a jack
HOSIDEN ELECTRONICS CO4 citations62
USD305117SDec 19, 1989
Cassette holder for use in a computer
HOSIDEN ELECTRONICS CO3 citations62
HITACHI LTD
11 patentsUS7839229B2Nov 23, 2010
Voltage-controlled oscillator and communication device using the same
HITACHI LTD35 citations93
US7592877B2Sep 22, 2009
Variable frequency oscillator and communication circuit with it
HITACHI LTD32 citations92
US7091757B2Aug 15, 2006
Frequency generator and communication system
HITACHI LTD21 citations92
US6304357B1Oct 16, 2001
Optical receiver
HITACHI LTD43 citations92
US5523966AJun 4, 1996
Memory cell and a memory device having reduced soft error
HITACHI LTD36 citations92
US5402377AMar 28, 1995
Semiconductor memory device having a controlled auxiliary decoder
HITACHI LTD32 citations92
US6785477B1Aug 31, 2004
Optical receiver using variable negative-capacitance circuit
HITACHI LTD21 citations91
US6658217B2Dec 2, 2003
Optical receiver
HITACHI LTD16 citations83
US10002858B2Jun 19, 2018
Power transistor module
HITACHI LTD2 citations73
US10115700B2Oct 30, 2018
Power module, electrical power conversion device, and driving device for vehicle
HITACHI LTD1 citations51
US10488515B2Nov 26, 2019
Acoustic emission wave detection system for a high voltage apparatus
HITACHI LTD0 citations50
RENESAS TECH CORP
5 patentsUS7518458B2Apr 14, 2009
Oscillator and data processing equipment using the same and voltage control oscillator and data processing equipment using voltage control oscillator
RENESAS TECH CORP54 citations94
US7589596B2Sep 15, 2009
Voltage controlled oscillator and wireless transceiver using the same
RENESAS TECH CORP20 citations84
US7177612B2Feb 13, 2007
Frequency generator and communication system using the same
RENESAS TECH CORP14 citations84
US7642618B2Jan 5, 2010
Semiconductor devices with inductors
RENESAS TECH CORP16 citations83
US7098740B2Aug 29, 2006
Radio frequency power amplifier and communication system
RENESAS TECH CORP10 citations74
RENESAS ELECTRONICS CORP
4 patentsUS7821335B2Oct 26, 2010
Semiconductor integrated circuit with variable gain amplifier
RENESAS ELECTRONICS CORP29 citations92
US7902934B2Mar 8, 2011
Variable inductor, and oscillator and communication system using the same
RENESAS ELECTRONICS CORP15 citations84
US7826814B2Nov 2, 2010
Frequency synthesizer
RENESAS ELECTRONICS CORP8 citations84
US7843287B2Nov 30, 2010
Active resonant circuit with resonant-frequency tunability
RENESAS ELECTRONICS CORP6 citations63
HITACHI POWER SEMICONDUCTOR DEVICE LTD
4 patentsUS11539361B2Dec 27, 2022
Semiconductor device signal transmission circuit for drive-control, method of controlling semiconductor device signal transmission circuit for drive-control, semiconductor device, power conversion device, and electric system for railway vehicle
HITACHI POWER SEMICONDUCTOR DEVICE LTD0 citations61
US11496041B2Nov 8, 2022
Gate drive device, gate drive method, power semiconductor module, and electric power conversion device
HITACHI POWER SEMICONDUCTOR DEVICE LTD1 citations57
US10888941B2Jan 12, 2021
Power semiconductor module
HITACHI POWER SEMICONDUCTOR DEVICE LTD0 citations50
US12438115B2Oct 7, 2025
Power semiconductor module
HITACHI POWER SEMICONDUCTOR DEVICE LTD0 citations49