Yasuhiro Uchiyama

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical add/drop multiplexer
- Patent number 8,009,987
- Issue date Aug 30, 2011
- Hitachi, Ltd.
- Yasuhiro Uchiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission equipment and optical add-drop multiplexer
- Patent number 7,953,321
- Issue date May 31, 2011
- Hitachi, Ltd.
- Yasuhiro Uchiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and control method therefor
- Patent number 7,809,263
- Issue date Oct 5, 2010
- Hitachi, Ltd.
- Tetsuya Uda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmision apparatus and control method therefor
- Patent number 7,725,034
- Issue date May 25, 2010
- Hitachi Communication Technologies, Inc.
- Tetsuya Uda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission equipment and optical add-drop multiplexer
- Patent number 7,697,845
- Issue date Apr 13, 2010
- Hitachi Communication Technologies, Ltd.
- Yasuhiro Uchiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device equipped with pluggable variable optica...
- Patent number 7,554,717
- Issue date Jun 30, 2009
- Hitachi Communication Technologies, Ltd.
- Hiroyuki Nakano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus and control method therefor
- Patent number 7,463,829
- Issue date Dec 9, 2008
- Hitachi Communication Technologies, Ltd.
- Tetsuya Uda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical Transmission Equipment And Optical Add-Drop Multiplexer
- Publication number 20100172644
- Publication date Jul 8, 2010
- Yasuhiro Uchiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND CONTROL METHOD THEREFOR
- Publication number 20090324229
- Publication date Dec 31, 2009
- Hitachi Communication Technologies , Inc.
- Tetsuya UDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION APPARATUS AND CONTROL METHOD THEREFOR
- Publication number 20090087185
- Publication date Apr 2, 2009
- Hitachi Communication Technologies, Ltd.
- Tetsuya UDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical add/drop multiplexer
- Publication number 20080285973
- Publication date Nov 20, 2008
- Yasuhiro Uchiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION EQUIPMENT AND OPTICAL ADD-DROP MULTIPLEXER
- Publication number 20070297802
- Publication date Dec 27, 2007
- Yasuhiro Uchiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission device equipped with pluggable variable optica...
- Publication number 20070041085
- Publication date Feb 22, 2007
- Hiroyuki Nakano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission apparatus and control method therefor
- Publication number 20050213968
- Publication date Sep 29, 2005
- Hitachi Communication Technologies, Ltd.
- Tetsuya UDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Yasuhiro Uchiyama

Person

Patents Grantslast 30 patents

Optical add/drop multiplexer

Optical transmission equipment and optical add-drop multiplexer

Optical transmission apparatus and control method therefor

Optical transmision apparatus and control method therefor

Optical transmission equipment and optical add-drop multiplexer

Optical transmission device equipped with pluggable variable optica...

Optical transmission apparatus and control method therefor

Patents Applicationslast 30 patents

Optical Transmission Equipment And Optical Add-Drop Multiplexer

OPTICAL TRANSMISSION APPARATUS AND CONTROL METHOD THEREFOR

OPTICAL TRANSMISSION APPARATUS AND CONTROL METHOD THEREFOR

Optical add/drop multiplexer

OPTICAL TRANSMISSION EQUIPMENT AND OPTICAL ADD-DROP MULTIPLEXER

Optical transmission device equipped with pluggable variable optica...

Optical transmission apparatus and control method therefor