Inventor
OHARA TAKUYA
JP35 patents
⚠️ This page may combine multiple inventors who share the name “OHARA TAKUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
21 patentsUS7386018B2Jun 10, 2008
Mode-locked laser and optical multi-carrier source using same
NIPPON TELEGRAPH & TELEPHONE8 citations73
US10250348B2Apr 2, 2019
Optical transport system and resource optimization method
NIPPON TELEGRAPH & TELEPHONE2 citations71
US12301671B2May 13, 2025
Information processing system, information processing method and program
NIPPON TELEGRAPH & TELEPHONE0 citations62
US12206450B2Jan 21, 2025
Phase difference distribution estimation method and phase difference distribution estimation apparatus
NIPPON TELEGRAPH & TELEPHONE0 citations62
US11917019B2Feb 27, 2024
Information processing system, information processing method and program
NIPPON TELEGRAPH & TELEPHONE0 citations62
US7970008B2Jun 28, 2011
Multiplexing transmission system and multiplexing transmission method
NIPPON TELEGRAPH & TELEPHONE4 citations62
US7151897B2Dec 19, 2006
Optical clock phase-locked loop circuit
NIPPON TELEGRAPH & TELEPHONE2 citations62
US6842565B2Jan 11, 2005
Optical modulation/multiplexing circuit
NIPPON TELEGRAPH & TELEPHONE2 citations62
US9438365B2Sep 6, 2016
Client signal mapping circuit and mapping method
NIPPON TELEGRAPH & TELEPHONE0 citations52
US12248428B2Mar 11, 2025
Information processing system, information processing method and program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12224797B2Feb 11, 2025
Optical wireless communication device and optical wireless communication method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12206458B2Jan 21, 2025
Communication apparatus and optical communication system
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12170607B2Dec 17, 2024
Transmission apparatus, transmission system and delay adjustment method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12149285B2Nov 19, 2024
Optical wireless communication system and optical wireless communication method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11923862B2Mar 5, 2024
Transmission apparatus and transmission system
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11916685B2Feb 27, 2024
Transmission apparatus and transmission method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US10122462B2Nov 6, 2018
Transport apparatus and transport method
NIPPON TELEGRAPH & TELEPHONE0 citations41
US9667350B2May 30, 2017
Optical receiving device and phase cycle reduction method
NIPPON TELEGRAPH & TELEPHONE0 citations41
US10230457B2Mar 12, 2019
Framer and framing method
NIPPON TELEGRAPH & TELEPHONE0 citations40
US10181921B2Jan 15, 2019
Framer and framing method
NIPPON TELEGRAPH & TELEPHONE0 citations40
US10063321B2Aug 28, 2018
Framer, optical transmission device, and framing method
NIPPON TELEGRAPH & TELEPHONE0 citations40
NTT INC
8 patentsUS12549252B2Feb 10, 2026
Optical signal emitting direction control apparatus and optical signal emitting direction control method
NTT INC0 citations62
US12500678B2Dec 16, 2025
Information processing system, delay control device, information processing method and program
NTT INC0 citations62
US12445371B2Oct 14, 2025
Communication path finding device, communication path finding method, and program
NTT INC0 citations62
US12550037B2Feb 10, 2026
Optical path design apparatus, optical path design method and program
NTT INC0 citations51
US12549463B2Feb 10, 2026
Information processing system, information processing method and program
NTT INC0 citations51
US12494859B2Dec 9, 2025
Optical path design apparatus, optical path design method and program
NTT INC0 citations51
US12445372B2Oct 14, 2025
Communication system, distribution device, data distribution method and program
NTT INC0 citations51
US12494964B2Dec 9, 2025
Communication system, communication method and program
NTT INC0 citations46
MITSUBISHI ELECTRIC CORP
3 patentsUS11997557B2May 28, 2024
Mobile communication system, master base station, secondary base station, target base station and user equipment
MITSUBISHI ELECTRIC CORP2 citations73
US12375989B2Jul 29, 2025
Mobile communication system, base station, master base station, secondary base station and user equipment
MITSUBISHI ELECTRIC CORP0 citations62
US10743227B2Aug 11, 2020
Communication system for performing an enhanced handover for a dual connection mobile device
MITSUBISHI ELECTRIC CORP0 citations52