Keiichiro Tsukamoto

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Add/drop multiplexer and interface
- Patent number 7,912,096
- Issue date Mar 22, 2011
- Fujitsu Limited
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus and reception interface apparatus
- Patent number 7,672,341
- Issue date Mar 2, 2010
- Fujitsu Limited
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed power supply and method of recovering from error
- Patent number 7,417,878
- Issue date Aug 26, 2008
- Fujitsu Limited
- Keiichiro Tsukamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
ATM cell service apparatus accomodating an ATM cell in an optical a...
- Patent number 7,154,894
- Issue date Dec 26, 2006
- Fujitsu Limited
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal loopback device
- Patent number 6,657,953
- Issue date Dec 2, 2003
- Fujitsu Limited
- Masanori Hiramoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitter with cell switching function
- Patent number 6,498,794
- Issue date Dec 24, 2002
- Fujitsu Limited
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmission apparatus with control circuit/relay within each card...
- Patent number 6,192,437
- Issue date Feb 20, 2001
- Fujitsu Limited
- Akihiko Oka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for interfacing between communication networks
- Patent number 6,188,701
- Issue date Feb 13, 2001
- Fujitsu Limited
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Distributed power supply and method of recovering from error
- Publication number 20070230225
- Publication date Oct 4, 2007
- FUJITSU LIMITED
- Keiichiro Tsukamoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
ATM cell service apparatus accommodating an ATM cell in an optical...
- Publication number 20070081466
- Publication date Apr 12, 2007
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Transmission apparatus and reception interface apparatus
- Publication number 20050213614
- Publication date Sep 29, 2005
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Add/drop multiplexer and interface
- Publication number 20030112832
- Publication date Jun 19, 2003
- Keiichiro Tsukamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Keiichiro Tsukamoto

Person

Patents Grantslast 30 patents

Add/drop multiplexer and interface

Transmission apparatus and reception interface apparatus

Distributed power supply and method of recovering from error

ATM cell service apparatus accomodating an ATM cell in an optical a...

Signal loopback device

Transmitter with cell switching function

Transmission apparatus with control circuit/relay within each card...

Apparatus and method for interfacing between communication networks

Patents Applicationslast 30 patents

Distributed power supply and method of recovering from error

ATM cell service apparatus accommodating an ATM cell in an optical...

Transmission apparatus and reception interface apparatus

Add/drop multiplexer and interface