Inventor
NAGAI SHUICHI
JP43 patents
⚠️ This page may combine multiple inventors who share the name “NAGAI SHUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANASONIC IP MAN CO LTD
23 patentsUS9494964B2Nov 15, 2016
Gate drive circuit
PANASONIC IP MAN CO LTD9 citations83
US9391353B2Jul 12, 2016
Resonance coupler
PANASONIC IP MAN CO LTD4 citations73
US9735456B2Aug 15, 2017
Electromagnetic resonant coupler and high-frequency transmission device
PANASONIC IP MAN CO LTD3 citations72
US9362963B2Jun 7, 2016
Radio-frequency signal reception circuit and isolated signal transmission apparatus
PANASONIC IP MAN CO LTD3 citations72
US9287910B2Mar 15, 2016
Electromagnetic resonance coupler and transmission apparatus
PANASONIC IP MAN CO LTD2 citations62
US12203786B2Jan 21, 2025
Encoder
PANASONIC IP MAN CO LTD0 citations61
US11982550B2May 14, 2024
Encoder
PANASONIC IP MAN CO LTD0 citations61
US9466421B2Oct 11, 2016
Resonance coupler and transmission device
PANASONIC IP MAN CO LTD2 citations61
US11982551B2May 14, 2024
Encoder using rotatable plate, light source and light receiver
PANASONIC IP MAN CO LTD0 citations52
US10158280B2Dec 18, 2018
Signal generation circuit
PANASONIC IP MAN CO LTD1 citations52
US9698461B2Jul 4, 2017
Resonant coupler
PANASONIC IP MAN CO LTD1 citations52
US9479074B2Oct 25, 2016
Resonance coupler, transmission apparatus, switching system, and directional coupler
PANASONIC IP MAN CO LTD1 citations52
US9438231B2Sep 6, 2016
Gate drive circuit
PANASONIC IP MAN CO LTD1 citations52
US9406668B2Aug 2, 2016
Power semiconductor element
PANASONIC IP MAN CO LTD1 citations52
US12292314B2May 6, 2025
Optical encoder
PANASONIC IP MAN CO LTD0 citations51
US12078517B2Sep 3, 2024
Encoder including moving plate, irradiator, light receiver and determination part to specify error position
PANASONIC IP MAN CO LTD0 citations51
US9490797B2Nov 8, 2016
Drive device
PANASONIC IP MAN CO LTD1 citations51
US9438230B2Sep 6, 2016
Gate drive circuit
PANASONIC IP MAN CO LTD1 citations51
US9972587B2May 15, 2018
Signal transmission device using electromagnetic resonance coupler
PANASONIC IP MAN CO LTD0 citations50
US9654098B2May 16, 2017
Signal reception circuit and isolated signal transmission device
PANASONIC IP MAN CO LTD0 citations42
US9654097B2May 16, 2017
Signal transmission circuit, switching system, and matrix converter
PANASONIC IP MAN CO LTD0 citations42
US9438130B2Sep 6, 2016
Semiconductor device, switching system, and matrix converter
PANASONIC IP MAN CO LTD0 citations42
US9515653B1Dec 6, 2016
Signal generating circuit
PANASONIC IP MAN CO LTD0 citations33
PANASONIC CORP
14 patentsUS8552821B2Oct 8, 2013
Electromagnetic resonance coupler
PANASONIC CORP23 citations92
US7839350B2Nov 23, 2010
Antenna device
PANASONIC CORP21 citations92
US8866516B2Oct 21, 2014
Gate drive circuit
PANASONIC CORP7 citations84
US8729983B2May 20, 2014
Resonance coupler
PANASONIC CORP7 citations84
US8723626B2May 13, 2014
Electromagnetic resonance coupler
PANASONIC CORP6 citations84
US7903030B2Mar 8, 2011
Planar antenna device and radio communication device using the same
PANASONIC CORP9 citations84
US9224534B2Dec 29, 2015
Electromagnetic resonance coupler
PANASONIC CORP4 citations73
US9184723B2Nov 10, 2015
Electromagnetic resonance coupler
PANASONIC CORP5 citations73
US9093973B2Jul 28, 2015
Electromagnetic resonance coupler
PANASONIC CORP4 citations73
US8384212B2Feb 26, 2013
Semiconductor equipment and method of manufacturing the same
PANASONIC CORP6 citations73
US8847663B2Sep 30, 2014
Gate drive circuit
PANASONIC CORP3 citations63
US9634655B2Apr 25, 2017
Drive device having first and second switching devices with different gate widths
PANASONIC CORP0 citations42
US10153765B2Dec 11, 2018
Signal generation device
PANASONIC CORP0 citations41
US10297538B2May 21, 2019
Signal transmission apparatus including semiconductor chips and signal isolator
PANASONIC CORP0 citations40
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
5 patentsUS7183581B2Feb 27, 2007
Optical transmission module for use in high-speed optical fiber communication
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US6908779B2Jun 21, 2005
Semiconductor device and method for manufacturing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations73
US7364367B2Apr 29, 2008
Optical module manufacturing method and optical module
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7085453B2Aug 1, 2006
Optical functional device and optical module
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations63
US7155080B2Dec 26, 2006
Semiconductor device and method for manufacturing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations51