Inventor
SHIRAKAWA YOHEI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “SHIRAKAWA YOHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI METALS LTD
21 patentsUS9887499B2Feb 6, 2018
Communication cable connector and communication cable with connector
HITACHI METALS LTD3 citations73
US9583894B2Feb 28, 2017
Cable signal detector and connectorized communication cable
HITACHI METALS LTD2 citations73
US10962607B2Mar 30, 2021
Method for testing multicore cable, method for manufacturing multicore cable assembly, and multicore cable test device
HITACHI METALS LTD2 citations72
US10992068B2Apr 27, 2021
Method for manufacturing solder with ground bar and coaxial cable array
HITACHI METALS LTD3 citations70
US11009560B2May 18, 2021
Method for testing multicore cable, method for manufacturing multicore cable assembly, and multicore cable test device
HITACHI METALS LTD1 citations62
US10895607B2Jan 19, 2021
Method for testing multicore cable, method for manufacturing multicore cable assembly, and multicore cable test device
HITACHI METALS LTD1 citations62
US10270676B2Apr 23, 2019
Signal detecting device
HITACHI METALS LTD1 citations60
US12442870B2Oct 14, 2025
Coupling capacitance estimation method, method for identifying corresponding ends of multicore cable, and method for manufacturing multicore cable assembly
HITACHI METALS LTD0 citations52
US11630163B1Apr 18, 2023
Multi-core cable testing device and method for testing the multi-core cable
HITACHI METALS LTD0 citations52
US9979555B2May 22, 2018
Communication monitoring device
HITACHI METALS LTD0 citations52
US9769039B2Sep 19, 2017
Communication visualization device
HITACHI METALS LTD0 citations52
US11815563B2Nov 14, 2023
Multicore cable inspection method and multicore cable inspection device
HITACHI METALS LTD0 citations51
US9608393B2Mar 28, 2017
Repeater with two connectors mounted on two opposite sides of a circuit board
HITACHI METALS LTD1 citations51
US11570906B2Jan 31, 2023
Multi-core cable assembling method and multi-core cable assembly producing method
HITACHI METALS LTD0 citations49
US10075211B2Sep 11, 2018
Crosstalk reduction method and repeater
HITACHI METALS LTD0 citations41
US9729354B2Aug 8, 2017
Cable signal detector
HITACHI METALS LTD0 citations41
US9712372B2Jul 18, 2017
Cable signal detector
HITACHI METALS LTD0 citations41
US9692683B2Jun 27, 2017
Communication visualization system
HITACHI METALS LTD0 citations41
US10149378B2Dec 4, 2018
Communication device
HITACHI METALS LTD0 citations39
US9842482B2Dec 12, 2017
Signal detecting device
HITACHI METALS LTD0 citations39
US9826631B2Nov 21, 2017
Repeater
HITACHI METALS LTD0 citations39
PROTERIAL LTD
9 patentsUS12516962B2Jan 6, 2026
Position detection device
PROTERIAL LTD0 citations62
US12298154B2May 13, 2025
Position detection device
PROTERIAL LTD0 citations62
US12516961B2Jan 6, 2026
Position detection device and vehicle steering device
PROTERIAL LTD0 citations57
US12523499B2Jan 13, 2026
Position detection device
PROTERIAL LTD0 citations52
US12434761B2Oct 7, 2025
Stroke sensor
PROTERIAL LTD0 citations52
US12399036B2Aug 26, 2025
Position detection device
PROTERIAL LTD0 citations52
US12523500B2Jan 13, 2026
Position detection device
PROTERIAL LTD0 citations50
US12487103B2Dec 2, 2025
Position detection device
PROTERIAL LTD0 citations50
US12571814B2Mar 10, 2026
Position detection device
PROTERIAL LTD0 citations47
SHIRAKAWA YOHEI
6 patentsUS8700375B2Apr 15, 2014
Electromagnetic coupler, wireless terminal including same, and method for designing electromagnetic couplers
SHIRAKAWA YOHEI3 citations61
US8633783B2Jan 21, 2014
Electromagnetic coupler and communication apparatus using the same
SHIRAKAWA YOHEI1 citations50
US8803629B2Aug 12, 2014
Electromagnetic coupler and information communication device including same
SHIRAKAWA YOHEI1 citations49
US8803754B2Aug 12, 2014
Antenna and wireless device having same
SHIRAKAWA YOHEI0 citations49
US8810332B2Aug 19, 2014
Electromagnetic coupler and information communication device with same mounted thereon
SHIRAKAWA YOHEI0 citations38
US8742866B2Jun 3, 2014
Electromagnetic coupler and information communication device including same
SHIRAKAWA YOHEI0 citations38