Hiroyuki Itou

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Gain and signal level adjustments of cascaded optical amplifiers
- Patent number 8,547,629
- Issue date Oct 1, 2013
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain and signal level adjustments of cascaded optical amplifiers
- Patent number 7,969,648
- Issue date Jun 28, 2011
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain and signal level adjustments of cascaded optical amplifiers
- Patent number 7,924,499
- Issue date Apr 12, 2011
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying apparatus for wavelength division multiplexed si...
- Patent number 7,612,936
- Issue date Nov 3, 2009
- Fujitsu Limited
- Kaoru Usui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier and optical amplifier control method
- Patent number 7,202,997
- Issue date Apr 10, 2007
- Fujitsu Limited
- Hiroshi Iizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain and signal level adjustments of cascaded optical amplifiers
- Patent number 7,061,666
- Issue date Jun 13, 2006
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier and control method therefor
- Patent number 6,977,770
- Issue date Dec 20, 2005
- Fujitsu Limited
- Kosuke Komaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gain and signal level adjustments of cascaded optical amplifiers
- Patent number 6,603,596
- Issue date Aug 5, 2003
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier
- Patent number 6,496,300
- Issue date Dec 17, 2002
- Fujitsu Limited
- Susumu Kinoshita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method, apparatus, and system for optical amplification
- Patent number 6,373,625
- Issue date Apr 16, 2002
- Fujitsu Limited
- Taiki Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier having an attenuator for attenuating input power...
- Patent number 5,986,799
- Issue date Nov 16, 1999
- Fujitsu Limited
- Hiroyuki Itou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-wavelength optical batch amplification apparatus
- Patent number 5,870,217
- Issue date Feb 9, 1999
- Fujitsu Limited
- Hiroyuki Itou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Auxiliary-signal transmission system
- Patent number 5,841,558
- Issue date Nov 24, 1998
- Fujitsu Limited
- Yuji Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control apparatus for optical amplifier
- Patent number 5,822,112
- Issue date Oct 13, 1998
- Fujitsu Limited
- Hiroyuki Itou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Auxiliary-signal transmission system
- Patent number 5,798,857
- Issue date Aug 25, 1998
- Fujitsu Limited
- Yuji Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier and optical transmission apparatus
- Patent number 5,680,246
- Issue date Oct 21, 1997
- Fujitsu Limited
- Tsukasa Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Auxiliary-signal transmission system
- Patent number 5,625,481
- Issue date Apr 29, 1997
- Fujitsu Limited
- Yuji Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS
- Publication number 20110164309
- Publication date Jul 7, 2011
- FUJITSU LIMITED
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS
- Publication number 20100272445
- Publication date Oct 28, 2010
- FUJITSU LIMITED
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Gain and signal level adjustments of cascaded optical amplifiers
- Publication number 20060198017
- Publication date Sep 7, 2006
- FUJITSU LIMITED
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifier and optical amplifier control method
- Publication number 20040100688
- Publication date May 27, 2004
- Hiroshi Iizuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light amplifying apparatus for wavelength division multiplexing cap...
- Publication number 20040057732
- Publication date Mar 25, 2004
- FUJITSU LIMITED
- Kaoru Usui
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical amplifier and control method therefor
- Publication number 20030231379
- Publication date Dec 18, 2003
- FUJITSU LIMITED
- Kosuke Komaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Gain and signal level adjustments of cascaded optical amplifiers
- Publication number 20030189751
- Publication date Oct 9, 2003
- Fujitsu Limitied
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS
- Publication number 20020060837
- Publication date May 23, 2002
- SHINYA INAGAKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL AMPLIFIER
- Publication number 20020027703
- Publication date Mar 7, 2002
- FUJITSU LIMITED
- SUSUMU KINOSHITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD, APPARATUS, AND SYSTEM FOR OPTICAL AMPLIFICATION
- Publication number 20020027704
- Publication date Mar 7, 2002
- TAIKI KOBAYASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hiroyuki Itou

Person

Patents Grantslast 30 patents

Gain and signal level adjustments of cascaded optical amplifiers

Gain and signal level adjustments of cascaded optical amplifiers

Gain and signal level adjustments of cascaded optical amplifiers

Optical amplifying apparatus for wavelength division multiplexed si...

Optical amplifier and optical amplifier control method

Gain and signal level adjustments of cascaded optical amplifiers

Optical amplifier and control method therefor

Gain and signal level adjustments of cascaded optical amplifiers

Optical amplifier

Method, apparatus, and system for optical amplification

Optical amplifier having an attenuator for attenuating input power...

Multi-wavelength optical batch amplification apparatus

Auxiliary-signal transmission system

Control apparatus for optical amplifier

Auxiliary-signal transmission system

Optical amplifier and optical transmission apparatus

Auxiliary-signal transmission system

Patents Applicationslast 30 patents

GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS

GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS

Gain and signal level adjustments of cascaded optical amplifiers

Optical amplifier and optical amplifier control method

Light amplifying apparatus for wavelength division multiplexing cap...

Optical amplifier and control method therefor

Gain and signal level adjustments of cascaded optical amplifiers

GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS

OPTICAL AMPLIFIER

METHOD, APPARATUS, AND SYSTEM FOR OPTICAL AMPLIFICATION