Kiichi Sugitani

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical network device and method for monitoring transmission line
- Patent number 11,742,978
- Issue date Aug 29, 2023
- Fujitsu Limited
- Kazuyuki Tajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encoding circuit, decoding circuit, encoding method, and decoding m...
- Patent number 11,418,284
- Issue date Aug 16, 2022
- Fujitsu Limited
- Yohei Koganei
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Encoding circuit, decoding circuit, and encoding method
- Patent number 11,283,542
- Issue date Mar 22, 2022
- Fujitsu Limited
- Yohei Koganei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device, transmission system, and transmission...
- Patent number 9,787,396
- Issue date Oct 10, 2017
- Fujitsu Limited
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver and optical receiving method
- Patent number 9,215,011
- Issue date Dec 15, 2015
- Fujitsu Limited
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver, optical reception method and optical reception sy...
- Patent number 8,934,789
- Issue date Jan 13, 2015
- Fujitsu Limited
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase synchronization apparatus and digital coherent light receiver
- Patent number 8,553,825
- Issue date Oct 8, 2013
- Fujitsu Limited
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distortion compensating apparatus, optical receiving apparatus, and...
- Patent number 8,447,190
- Issue date May 21, 2013
- Fujitsu Limited
- Takahito Tanimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and method for network monitoring
- Patent number 7,577,098
- Issue date Aug 18, 2009
- Fujitsu Limited
- Nobuyuki Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Layer 2 loop detection system
- Patent number 7,496,055
- Issue date Feb 24, 2009
- Fujitsu Limited
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL NETWORK DEVICE AND METHOD FOR MONITORING TRANSMISSION LINE
- Publication number 20220209884
- Publication date Jun 30, 2022
- Fujitsu Limited
- Kazuyuki TAJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCODING CIRCUIT, DECODING CIRCUIT, AND ENCODING METHOD
- Publication number 20210218496
- Publication date Jul 15, 2021
- Fujitsu Limited
- Yohei Koganei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCODING CIRCUIT, DECODING CIRCUIT, ENCODING METHOD, AND DECODING M...
- Publication number 20200366408
- Publication date Nov 19, 2020
- Fujitsu Limited
- Yohei Koganei
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
OPTICAL TRANSMISSION DEVICE, TRANSMISSION SYSTEM, AND TRANSMISSION...
- Publication number 20170026114
- Publication date Jan 26, 2017
- Fujitsu Limited
- KIICHI SUGITANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER AND OPTICAL RECEIVING METHOD
- Publication number 20150125150
- Publication date May 7, 2015
- Fujitsu Limited
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL RECEIVER, OPTICAL RECEPTION METHOD AND OPTICAL RECEPTION SY...
- Publication number 20140119731
- Publication date May 1, 2014
- FUJITSU LIMITED
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL PROCESSING APPARATUS AND METHOD
- Publication number 20140064345
- Publication date Mar 6, 2014
- FUJITSU LIMITED
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PHASE SYNCHRONIZATION APPARATUS AND DIGITAL COHERENT LIGHT RECEIVER
- Publication number 20100239269
- Publication date Sep 23, 2010
- FUJITSU LIMITED
- Kiichi SUGITANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISTORTION COMPENSATING APPARATUS, OPTICAL RECEIVING APPARATUS, AND...
- Publication number 20100196017
- Publication date Aug 5, 2010
- Fujitsu Limited
- Takahito TANIMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Device and method for network monitoring
- Publication number 20060209699
- Publication date Sep 21, 2006
- FUJITSU LIMITED
- Nobuyuki Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Loop frame detecting device and method for detecting loop frame
- Publication number 20060013141
- Publication date Jan 19, 2006
- FUJITSU LIMITED
- Ryoichi Mutoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Layer 2 loop detection system
- Publication number 20050220036
- Publication date Oct 6, 2005
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical cross-connect device and method of optical communication co...
- Publication number 20050213875
- Publication date Sep 29, 2005
- FUJITSU LIMITED
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical path cross connect apparatus and switching method thereof
- Publication number 20030123785
- Publication date Jul 3, 2003
- FUJITSU LIMITED
- Kiichi Sugitani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kiichi Sugitani

Person

Patents Grantslast 30 patents

Optical network device and method for monitoring transmission line

Encoding circuit, decoding circuit, encoding method, and decoding m...

Encoding circuit, decoding circuit, and encoding method

Optical transmission device, transmission system, and transmission...

Optical receiver and optical receiving method

Optical receiver, optical reception method and optical reception sy...

Phase synchronization apparatus and digital coherent light receiver

Distortion compensating apparatus, optical receiving apparatus, and...

Device and method for network monitoring

Layer 2 loop detection system

Patents Applicationslast 30 patents

OPTICAL NETWORK DEVICE AND METHOD FOR MONITORING TRANSMISSION LINE

ENCODING CIRCUIT, DECODING CIRCUIT, AND ENCODING METHOD

ENCODING CIRCUIT, DECODING CIRCUIT, ENCODING METHOD, AND DECODING M...

OPTICAL TRANSMISSION DEVICE, TRANSMISSION SYSTEM, AND TRANSMISSION...

OPTICAL RECEIVER AND OPTICAL RECEIVING METHOD

OPTICAL RECEIVER, OPTICAL RECEPTION METHOD AND OPTICAL RECEPTION SY...

SIGNAL PROCESSING APPARATUS AND METHOD

PHASE SYNCHRONIZATION APPARATUS AND DIGITAL COHERENT LIGHT RECEIVER

DISTORTION COMPENSATING APPARATUS, OPTICAL RECEIVING APPARATUS, AND...

Device and method for network monitoring

Loop frame detecting device and method for detecting loop frame

Layer 2 loop detection system

Optical cross-connect device and method of optical communication co...

Optical path cross connect apparatus and switching method thereof