Hiroki OI

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Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical transmission system and fiber type determination method
- Patent number 11,876,559
- Issue date Jan 16, 2024
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multiplexing transmission apparatus and optical...
- Patent number 10,541,749
- Issue date Jan 21, 2020
- Fujitsu Limited
- Shigeru Ishii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network controller and signal quality estimating method
- Patent number 10,256,903
- Issue date Apr 9, 2019
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal-to-noise ratio monitor and method for measuring opti...
- Patent number 10,020,878
- Issue date Jul 10, 2018
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network controller and signal quality estimating method
- Patent number 9,906,296
- Issue date Feb 27, 2018
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission device and transmission method
- Patent number 9,444,572
- Issue date Sep 13, 2016
- Fujitsu Limited
- Tomohiro Kaneoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device
- Patent number 9,432,113
- Issue date Aug 30, 2016
- Fujitsu Limited
- Hiroki Oi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical branching and insertion device, network management device,...
- Patent number 9,071,379
- Issue date Jun 30, 2015
- Fujitsu Limited
- Hiroki Oi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FORWARD RAMAN AMPLIFIER, BIDIRECTIONAL RAMAN AMPLIFICATION SYSTEM,...
- Publication number 20240129034
- Publication date Apr 18, 2024
- Fujitsu Limited
- Hiroshi NAKAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND FIBER TYPE DETERMINATION METHOD
- Publication number 20220385364
- Publication date Dec 1, 2022
- Fujitsu Limited
- GOJI NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL WAVELENGTH MULTIPLEXING TRANSMISSION APPARATUS AND OPTICAL...
- Publication number 20190312641
- Publication date Oct 10, 2019
- Fujitsu Limited
- Shigeru ISHII
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK CONTROLLER AND SIGNAL QUALITY ESTIMATING METHOD
- Publication number 20180097562
- Publication date Apr 5, 2018
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK CONTROLLER AND SIGNAL QUALITY ESTIMATING METHOD
- Publication number 20160373187
- Publication date Dec 22, 2016
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL-TO-NOISE RATIO MONITOR AND METHOD FOR MEASURING OPTI...
- Publication number 20160308611
- Publication date Oct 20, 2016
- FUJITSU LIMITED
- Shoichiro ODA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE
- Publication number 20150098696
- Publication date Apr 9, 2015
- Fujitsu Limited
- Hiroki OI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRANSMISSION DEVICE AND TRANSMISSION METHOD
- Publication number 20140126903
- Publication date May 8, 2014
- Fujitsu Limited
- Tomohiro KANEOKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL BRANCHING AND INSERTION DEVICE, NETWORK MANAGEMENT DEVICE,...
- Publication number 20140010535
- Publication date Jan 9, 2014
- Hiroki OI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Person

Patents Grantslast 30 patents

Optical transmission system and fiber type determination method

Optical wavelength multiplexing transmission apparatus and optical...

Network controller and signal quality estimating method

Optical signal-to-noise ratio monitor and method for measuring opti...

Network controller and signal quality estimating method

Transmission device and transmission method

Optical transmission device

Optical branching and insertion device, network management device,...

Patents Applicationslast 30 patents

FORWARD RAMAN AMPLIFIER, BIDIRECTIONAL RAMAN AMPLIFICATION SYSTEM,...

OPTICAL TRANSMISSION SYSTEM AND FIBER TYPE DETERMINATION METHOD

OPTICAL WAVELENGTH MULTIPLEXING TRANSMISSION APPARATUS AND OPTICAL...

NETWORK CONTROLLER AND SIGNAL QUALITY ESTIMATING METHOD

NETWORK CONTROLLER AND SIGNAL QUALITY ESTIMATING METHOD

OPTICAL SIGNAL-TO-NOISE RATIO MONITOR AND METHOD FOR MEASURING OPTI...

OPTICAL TRANSMISSION DEVICE

TRANSMISSION DEVICE AND TRANSMISSION METHOD

OPTICAL BRANCHING AND INSERTION DEVICE, NETWORK MANAGEMENT DEVICE,...