Inventor
SHIBATA NAOTAKA
JP30 patents
⚠️ This page may combine multiple inventors who share the name “SHIBATA NAOTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
29 patentsUS11936432B2Mar 19, 2024
Communication system and OLT system
NIPPON TELEGRAPH & TELEPHONE4 citations74
US12010521B2Jun 11, 2024
Signal transfer system, signal transfer method, and path control device
NIPPON TELEGRAPH & TELEPHONE2 citations73
US11757788B2Sep 12, 2023
Signal transfer system, signal transfer device, signal transfer method and signal transfer program
NIPPON TELEGRAPH & TELEPHONE2 citations72
US9866327B2Jan 9, 2018
Distributed radio communication base station system, base band unit, remote radio unit, and method for operating distributed radio communication base station system
NIPPON TELEGRAPH & TELEPHONE3 citations72
US12063072B2Aug 13, 2024
Communication system and OLT system
NIPPON TELEGRAPH & TELEPHONE1 citations62
US11924111B2Mar 5, 2024
Signal transfer device and signal transfer method
NIPPON TELEGRAPH & TELEPHONE1 citations62
US11804920B2Oct 31, 2023
Signal transfer management device, signal transfer management method and signal transfer management program
NIPPON TELEGRAPH & TELEPHONE1 citations62
US10469167B2Nov 5, 2019
Optical communication system and optical communication method
NIPPON TELEGRAPH & TELEPHONE1 citations62
US12225446B2Feb 11, 2025
Performing a control operation to switch a plurality of communication paths
NIPPON TELEGRAPH & TELEPHONE0 citations52
US12058557B2Aug 6, 2024
Communication system, communication device, and terminal device
NIPPON TELEGRAPH & TELEPHONE0 citations52
US12047848B2Jul 23, 2024
Relay device, relay method, and relay program
NIPPON TELEGRAPH & TELEPHONE0 citations52
US11923950B2Mar 5, 2024
Relay device, relay method, and relay program
NIPPON TELEGRAPH & TELEPHONE0 citations52
US11804897B2Oct 31, 2023
Multiplex transmission system and multiplex transmission method
NIPPON TELEGRAPH & TELEPHONE0 citations52
US12149338B2Nov 19, 2024
Multiplex transmission system and connection method between ports for multiplex transmission system
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12095548B2Sep 17, 2024
Multiplex transmission system and connection method between ports for multiplex transmission system
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12088978B2Sep 10, 2024
Communication system and ONU system
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11909658B2Feb 20, 2024
Signal transfer system, path control device, and signal transfer method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12301284B2May 13, 2025
Spatial optical communication system
NIPPON TELEGRAPH & TELEPHONE0 citations50
US12155417B2Nov 26, 2024
Optical transmission device, optical communication system, and optical communication method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US12114201B2Oct 8, 2024
Signal transfer device, signal transfer method, signal transfer control device, signal transfer control method and signal transfer program
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11924740B2Mar 5, 2024
Signal transfer system, signal transfer device, route control device and signal transfer method
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11825395B2Nov 21, 2023
Route control method and route control device
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11711303B2Jul 25, 2023
Communication control system, communication control method, communication control apparatus and communication control program
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11706664B2Jul 18, 2023
Route control method and route control device
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11695455B2Jul 4, 2023
Wireless communication system, relay device, and receiving device
NIPPON TELEGRAPH & TELEPHONE0 citations50
US9693302B2Jun 27, 2017
Optical wireless access system
NIPPON TELEGRAPH & TELEPHONE0 citations49
US9788270B2Oct 10, 2017
Optical-wireless access system
NIPPON TELEGRAPH & TELEPHONE0 citations45
US10211921B2Feb 19, 2019
Optical communication system and optical communication method
NIPPON TELEGRAPH & TELEPHONE0 citations41
US10110310B2Oct 23, 2018
Transmission system and transmission method
NIPPON TELEGRAPH & TELEPHONE0 citations40