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Koji Nakamuta
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical communication receiving device and frequency offset compens...
Patent number
9,496,966
Issue date
Nov 15, 2016
Fujitsu Limited
Kazuhiko Hatae
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital coherent receiving apparatus
Patent number
9,444,554
Issue date
Sep 13, 2016
Fujitsu Limited
Nobukazu Koizumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive equalizer, optical receiver, and tap coefficient correctin...
Patent number
8,693,898
Issue date
Apr 8, 2014
Fujitsu Limited
Nobukazu Koizumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital coherent receiving apparatus
Patent number
8,649,689
Issue date
Feb 11, 2014
Fujitsu Limited
Nobukazu Koizumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
PLL circuit, method of controlling PLL circuit, and digital circuit
Patent number
8,536,911
Issue date
Sep 17, 2013
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Analog-digital converting apparatus and clock signal output apparatus
Patent number
8,488,062
Issue date
Jul 16, 2013
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital PLL circuit and clock generating method
Patent number
8,436,665
Issue date
May 7, 2013
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Temperature control device
Patent number
8,183,940
Issue date
May 22, 2012
Fujitsu Limited
Yoshito Koyama
G05 - CONTROLLING REGULATING
Information
Patent Grant
Digital PLL circuit
Patent number
7,664,217
Issue date
Feb 16, 2010
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
PLL circuit
Patent number
7,417,477
Issue date
Aug 26, 2008
Fujitsu Limited
Yoshito Koyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock supply device
Patent number
7,368,962
Issue date
May 6, 2008
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency synthesizer
Patent number
7,355,457
Issue date
Apr 8, 2008
Fujitsu Limited
Yoshito Koyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
DPLL circuit having holdover function
Patent number
7,330,057
Issue date
Feb 12, 2008
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Atomic oscillator utilizing a high frequency converting circuit and...
Patent number
6,300,841
Issue date
Oct 9, 2001
Fujitsu Limited
Ken Atsumi
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL COMMUNICATION RECEIVING DEVICE AND FREQUENCY OFFSET COMPENS...
Publication number
20150098714
Publication date
Apr 9, 2015
FUJITSU LIMITED
Kazuhiko HATAE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DIGITAL COHERENT RECEIVING APPARATUS
Publication number
20140029959
Publication date
Jan 30, 2014
Fujitsu Limited
Nobukazu KOIZUMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PLL CIRCUIT, METHOD OF CONTROLLING PLL CIRCUIT, AND DIGITAL CIRCUIT
Publication number
20130241610
Publication date
Sep 19, 2013
Koji NAKAMUTA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SIGNAL GENERATING APPARATUS AND METHOD OF GENERATING SIGNAL
Publication number
20130063183
Publication date
Mar 14, 2013
Fujitsu Limited
Yoshinori Nakane
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DIGITAL PLL CIRCUIT AND CLOCK GENERATING METHOD
Publication number
20120242386
Publication date
Sep 27, 2012
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Adaptive equalizer, optical receiver, and tap coefficient correctin...
Publication number
20120134684
Publication date
May 31, 2012
FUJITSU LIMITED
Nobukazu Koizumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DIGITAL COHERENT RECEIVING APPARATUS
Publication number
20100329697
Publication date
Dec 30, 2010
FUJITSU LIMITED
Nobukazu KOIZUMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ANALOG-DIGITAL CONVERTING APPARATUS AND CLOCK SIGNAL OUTPUT APPARATUS
Publication number
20100231789
Publication date
Sep 16, 2010
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
TEMPERATURE CONTROL DEVICE
Publication number
20100052801
Publication date
Mar 4, 2010
Fujitsu Limited
Yoshito Koyama
G05 - CONTROLLING REGULATING
Information
Patent Application
DDS CIRCUIT AND ELECTRONIC DEVICE HAVING THE SAME
Publication number
20090295490
Publication date
Dec 3, 2009
Fujitsu Limited
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
PLL circuit
Publication number
20080036513
Publication date
Feb 14, 2008
FUJITSU LIMITED
Yoshito Koyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Clock supply device
Publication number
20070229128
Publication date
Oct 4, 2007
FUJITSU LIMITED
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DPLL circuit having holdover function
Publication number
20070182467
Publication date
Aug 9, 2007
FUJITSU LIMITED
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Digital PLL circuit
Publication number
20060171496
Publication date
Aug 3, 2006
FUJITSU LIMITED
Koji Nakamuta
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Frequency synthesizer
Publication number
20050162197
Publication date
Jul 28, 2005
Yoshito Koyama
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Rubidium atom oscillator
Publication number
20010035795
Publication date
Nov 1, 2001
Hideyuki Matsuura
H03 - BASIC ELECTRONIC CIRCUITRY