Inventor
MAEDA HIDEKI
JP51 patents
⚠️ This page may combine multiple inventors who share the name “MAEDA HIDEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
16 patentsUS7215415B2May 8, 2007
Measurement method by OTDR and terminal station apparatus
NIPPON TELEGRAPH & TELEPHONE70 citations96
US6307985B1Oct 23, 2001
Optical transmission system
NIPPON TELEGRAPH & TELEPHONE115 citations96
US10250348B2Apr 2, 2019
Optical transport system and resource optimization method
NIPPON TELEGRAPH & TELEPHONE2 citations71
US12326785B2Jun 10, 2025
Transmission side transmission device and redundancy method of transmission side transmission device
NIPPON TELEGRAPH & TELEPHONE0 citations57
US12038813B2Jul 16, 2024
Transmitting side transmission device, receiving side transmission device, redundancy method of transmitting side transmission device, redundancy method of receiving side transmission device, program, and transmission device
NIPPON TELEGRAPH & TELEPHONE0 citations57
US11469966B2Oct 11, 2022
Transmission system, device management server, fault management method, and program
NIPPON TELEGRAPH & TELEPHONE0 citations57
US11824762B2Nov 21, 2023
Transmission path design apparatus, transmission network topology design method, and transmission path design program for designing a communication path topology optimized in view of reducing amount of equipment needed
NIPPON TELEGRAPH & TELEPHONE0 citations52
US12581223B2Mar 17, 2026
Optical path route design device and optical path route design method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11973533B2Apr 30, 2024
Transmission device interconnection registration device, transmission device interconnection registration method, and program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11621779B2Apr 4, 2023
Optical transmission system and optical transmission device setting method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11812205B2Nov 7, 2023
Optical cross-connect device, optical transmission system, and optical transmission line connection error detection method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11750535B2Sep 5, 2023
Transmitting device, receiving device, packet transfer system,packet transfer method, and packet transfer program
NIPPON TELEGRAPH & TELEPHONE0 citations48
US11936526B2Mar 19, 2024
Network apparatus information management device and network apparatus information management method
NIPPON TELEGRAPH & TELEPHONE0 citations47
US11411879B2Aug 9, 2022
Transmission system management device and transmission system design method
NIPPON TELEGRAPH & TELEPHONE0 citations47
US10230457B2Mar 12, 2019
Framer and framing method
NIPPON TELEGRAPH & TELEPHONE0 citations40
US10181921B2Jan 15, 2019
Framer and framing method
NIPPON TELEGRAPH & TELEPHONE0 citations40
FUJITSU LTD
9 patentsUS7302967B2Dec 4, 2007
Reverse flow preventing device and electronic apparatus
FUJITSU LTD25 citations91
US7025086B2Apr 11, 2006
Reverse flow preventing device and electronic apparatus
FUJITSU LTD33 citations91
US7792430B2Sep 7, 2010
Automatic power restoring method and optical communication system
FUJITSU LTD9 citations83
US7437069B2Oct 14, 2008
Automatic power restoring method and optical communication system
FUJITSU LTD8 citations73
US7420666B2Sep 2, 2008
Measurement method by OTDR and terminal station apparatus
FUJITSU LTD5 citations72
US7292540B2Nov 6, 2007
Network monitoring and controlling apparatus
FUJITSU LTD8 citations66
US7664392B2Feb 16, 2010
Automatic power restoring method and optical communication system
FUJITSU LTD4 citations62
US7222174B2May 22, 2007
Monitoring control network system
FUJITSU LTD6 citations62
US6763381B1Jul 13, 2004
Supervisory control system
FUJITSU LTD3 citations62
SUMITOMO ELECTRIC INDUSTRIES
7 patentsUS11063908B2Jul 13, 2021
On-vehicle communication device, communication control method, and communication control program
SUMITOMO ELECTRIC INDUSTRIES1 citations62
US11962433B2Apr 16, 2024
Switch device, in-vehicle communication system, and communication method
SUMITOMO ELECTRIC INDUSTRIES1 citations61
US11374787B2Jun 28, 2022
Switch device, communication control method, and communication control program
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US11196702B2Dec 7, 2021
In-vehicle communication device, and communication control method
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US12021658B2Jun 25, 2024
Switch device, in-vehicle communication system, and communication method
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US11637803B2Apr 25, 2023
Switch device and communication control method
SUMITOMO ELECTRIC INDUSTRIES0 citations48
US11425032B2Aug 23, 2022
Switching device, communication control method and communication control program
SUMITOMO ELECTRIC INDUSTRIES0 citations48
TOYOTA MOTOR CO LTD
5 patentsUS10819218B2Oct 27, 2020
Power converter for electric vehicle
TOYOTA MOTOR CO LTD2 citations73
US11046199B2Jun 29, 2021
Electric vehicle
TOYOTA MOTOR CO LTD0 citations62
US11691556B2Jul 4, 2023
Vehicle ramp system
TOYOTA MOTOR CO LTD0 citations60
US11613196B2Mar 28, 2023
Ramp system for vehicle
TOYOTA MOTOR CO LTD1 citations59
US12424866B2Sep 23, 2025
Power conversion system
TOYOTA MOTOR CO LTD0 citations52
AUTONETWORKS TECHNOLOGIES LTD
5 patentsUS12325369B2Jun 10, 2025
In-vehicle management device and management method
AUTONETWORKS TECHNOLOGIES LTD0 citations61
US12255958B2Mar 18, 2025
On-board relay device, information processing method, and program
AUTONETWORKS TECHNOLOGIES LTD0 citations51
US12565145B2Mar 3, 2026
In-vehicle apparatus, information processing method, and program
AUTONETWORKS TECHNOLOGIES LTD0 citations50
US12537809B2Jan 27, 2026
In-vehicle relay device, in-vehicle system, information processing method, and a program
AUTONETWORKS TECHNOLOGIES LTD0 citations50
US12463845B2Nov 4, 2025
Relay device, relay system, relaying method, and computer program
AUTONETWORKS TECHNOLOGIES LTD0 citations50
OMRON TATEISI ELECTRONICS CO
1 patentFURUKAWA ALUMINIUM
1 patentSO TSUYOSHI
1 patentSHINKO ELECTRIC CO LTD
1 patentDENSO CORP
1 patentNATURE FRIEND INC
1 patentMAEDA HIDEKI
1 patentSINFONIA TECHNOLOGY CO LTD
1 patentShowing the top 50 of 51 patents by PatentIndex Score.