P

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 patents
US7215415B2May 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 patents

SUMITOMO ELECTRIC INDUSTRIES

7 patents

TOYOTA MOTOR CO LTD

5 patents

AUTONETWORKS TECHNOLOGIES LTD

5 patents

OMRON TATEISI ELECTRONICS CO

1 patent

FURUKAWA ALUMINIUM

1 patent

SO TSUYOSHI

1 patent

SHINKO ELECTRIC CO LTD

1 patent

DENSO CORP

1 patent

NATURE FRIEND INC

1 patent

MAEDA HIDEKI

1 patent

SINFONIA TECHNOLOGY CO LTD

1 patent

Showing the top 50 of 51 patents by PatentIndex Score.