Toshiyuki Tokura

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Excitation light source apparatus and optical transmission system
- Patent number 11,165,501
- Issue date Nov 2, 2021
- Mitsubishi Electric Corporation
- Katsunori Imanishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal light interruption detection device, optical amplifier, opti...
- Patent number 11,128,380
- Issue date Sep 21, 2021
- Mitsubishi Electric Corporation
- Kanehiro Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier
- Patent number 10,971,888
- Issue date Apr 6, 2021
- Mitsubishi Electric Corporation
- Hiroshi Miura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transmission line switching apparatus, optical transmission...
- Patent number 10,708,676
- Issue date Jul 7, 2020
- Mitsubishi Electric Corporation
- Shun Chikamori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Excitation light source device and optical transmission system
- Patent number 9,831,953
- Issue date Nov 28, 2017
- Mitsubishi Electric Corporation
- Katsunori Imanishi
- G02 - OPTICS
Information Patent Grant
Optical transmission line switching apparatus and optical transmiss...
- Patent number 9,628,173
- Issue date Apr 18, 2017
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier, wavelength multiplexing optical transmission sys...
- Patent number 9,478,935
- Issue date Oct 25, 2016
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication system
- Patent number 9,036,995
- Issue date May 19, 2015
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and repeater
- Patent number 8,320,771
- Issue date Nov 27, 2012
- Mitsubishi Electric Corporation
- Tsuyoshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical relay device and optical relay transmission system
- Patent number 8,208,812
- Issue date Jun 26, 2012
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Raman amplifier and optical communication system
- Patent number 7,768,698
- Issue date Aug 3, 2010
- Independent Administrative Institution, Japan Agency for Marine-Earth Science...
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Observation apparatus and observation system
- Patent number 7,539,413
- Issue date May 26, 2009
- Mitsubishi Denki Kabushiki Kaisha
- Hiroaki Munehira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Non-polarization light source device and raman amplifier
- Patent number 7,218,441
- Issue date May 15, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Toshiyuki Tokura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Raman amplifier and optical relay transmission system
- Patent number 7,068,421
- Issue date Jun 27, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMISSION LINE SWITCHING APPARATUS, OPTICAL TRANSMISSION...
- Publication number 20200059711
- Publication date Feb 20, 2020
- MITSUBISHI ELECTRIC CORPORATION
- Shun CHIKAMORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
EXCITATION LIGHT SOURCE APPARATUS AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20200044741
- Publication date Feb 6, 2020
- MITSUBISHI ELECTRIC CORPORATION
- Katsunori IMANISHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SIGNAL LIGHT INTERRUPTION DETECTION DEVICE, OPTICAL AMPLIFIER, OPTI...
- Publication number 20190028202
- Publication date Jan 24, 2019
- MITSUBISHI ELECTRIC CORPORATION
- Kanehiro MATSUMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL AMPLIFIER
- Publication number 20180358775
- Publication date Dec 13, 2018
- MITSUBISHI ELECTRIC CORPORATION
- Hiroshi MIURA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EXCITATION LIGHT SOURCE DEVICE AND OPTICAL TRANSMISSION SYSTEM
- Publication number 20160218809
- Publication date Jul 28, 2016
- MITSUBISHI ELECTRIC CORPORATION
- Katsunori IMANISHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION LINE SWITCHING APPARATUS AND OPTICAL TRANSMISS...
- Publication number 20160134360
- Publication date May 12, 2016
- MITSUBISHI ELECTRIC CORPORATION
- Toshiyuki TOKURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AMPLIFIER, WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYS...
- Publication number 20150188286
- Publication date Jul 2, 2015
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL COMMUNICATION SYSTEM
- Publication number 20130129356
- Publication date May 23, 2013
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION SYSTEM
- Publication number 20130039643
- Publication date Feb 14, 2013
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND REPEATER
- Publication number 20100284694
- Publication date Nov 11, 2010
- MITSUBISHI ELECTRIC CORPORATION
- Tsuyoshi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RELAY DEVICE AND OPTICAL RELAY TRANSMISSION SYSTEM
- Publication number 20100239263
- Publication date Sep 23, 2010
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Raman Amplifier And Optical Communication System
- Publication number 20080013161
- Publication date Jan 17, 2008
- INDEPENDENT ADMINISTRATIVE INSTITUTION, JAPAN AGENCY FOR MARINE-EARTH SCIENCE...
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Observation apparatus and observation system
- Publication number 20050259264
- Publication date Nov 24, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Hiroaki Munehira
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Raman amplifier and optical relay transmission system
- Publication number 20050099676
- Publication date May 12, 2005
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Non-polarization light source device and raman amplifier
- Publication number 20040165254
- Publication date Aug 26, 2004
- Toshiyuki Tokura
- H01 - BASIC ELECTRIC ELEMENTS

Toshiyuki Tokura

Person

Patents Grantslast 30 patents

Excitation light source apparatus and optical transmission system

Signal light interruption detection device, optical amplifier, opti...

Optical amplifier

Optical transmission line switching apparatus, optical transmission...

Excitation light source device and optical transmission system

Optical transmission line switching apparatus and optical transmiss...

Optical amplifier, wavelength multiplexing optical transmission sys...

Optical communication system

Optical transmission system and repeater

Optical relay device and optical relay transmission system

Raman amplifier and optical communication system

Observation apparatus and observation system

Non-polarization light source device and raman amplifier

Raman amplifier and optical relay transmission system

Patents Applicationslast 30 patents

OPTICAL TRANSMISSION LINE SWITCHING APPARATUS, OPTICAL TRANSMISSION...

EXCITATION LIGHT SOURCE APPARATUS AND OPTICAL TRANSMISSION SYSTEM

SIGNAL LIGHT INTERRUPTION DETECTION DEVICE, OPTICAL AMPLIFIER, OPTI...

OPTICAL AMPLIFIER

EXCITATION LIGHT SOURCE DEVICE AND OPTICAL TRANSMISSION SYSTEM

OPTICAL TRANSMISSION LINE SWITCHING APPARATUS AND OPTICAL TRANSMISS...

OPTICAL AMPLIFIER, WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYS...

OPTICAL COMMUNICATION SYSTEM

OPTICAL COMMUNICATION SYSTEM

OPTICAL TRANSMISSION SYSTEM AND REPEATER

OPTICAL RELAY DEVICE AND OPTICAL RELAY TRANSMISSION SYSTEM

Raman Amplifier And Optical Communication System

Observation apparatus and observation system

Raman amplifier and optical relay transmission system

Non-polarization light source device and raman amplifier