Tomohiro Otani

Person

Hodogaya-ku, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical signal quality monitoring apparatus
- Patent number 8,254,782
- Issue date Aug 28, 2012
- KDDI Corporation
- Takehiro Tsuritani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Link connectivity verification method
- Patent number 7,903,969
- Issue date Mar 8, 2011
- KDDI Corporation
- Noboru Yoshikane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength service providing apparatus in all-optical network
- Patent number 7,747,167
- Issue date Jun 29, 2010
- KDDI Corporation
- Takehiro Tsuritani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Link system for photonic cross connect and transmission apparatus
- Patent number 7,480,458
- Issue date Jan 20, 2009
- KDDI Corporation
- Takehiro Tsuritani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data transmission system, transmission method of optical network mo...
- Patent number 7,151,893
- Issue date Dec 19, 2006
- KDDI Corporation
- Michiaki Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal regenerator
- Patent number 7,116,914
- Issue date Oct 3, 2006
- KDDI Corporation
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical reception apparatus and optical transmission system
- Patent number 7,035,552
- Issue date Apr 25, 2006
- KDDI Corporation
- Michiaki Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical clock multiplier and method thereof
- Patent number 6,798,558
- Issue date Sep 28, 2004
- KDDI Corporation
- Michiaki Hayashi
- G02 - OPTICS
Information Patent Grant
Four fiber ring network optical switching circuit using branched in...
- Patent number 6,782,201
- Issue date Aug 24, 2004
- DDI Corporation
- Shu Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal demultiplexing device and signal routing device in high spee...
- Patent number 6,741,810
- Issue date May 25, 2004
- DDI Corporation
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical digital regenerator
- Patent number 6,532,091
- Issue date Mar 11, 2003
- KDD Corporation
- Tetsuya Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system, optically branching apparatus and opti...
- Patent number 6,327,060
- Issue date Dec 4, 2001
- Kokusai Denshin Denwa Kabushiki-Kaisha
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Demultiplexer device for wavelength-division multiplexed optical fi...
- Patent number 6,115,156
- Issue date Sep 5, 2000
- Kokusai Denshin Denwa Kabushiki Daisha
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Noise suppression method for wavelength division multiplexing trans...
- Patent number 5,978,122
- Issue date Nov 2, 1999
- Kokusai Denshin Denwa Kabushiki Kaisha
- Toshio Kawazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SIGNAL QUALITY MONITORING APPARATUS
- Publication number 20090148158
- Publication date Jun 11, 2009
- KDDI CORPORATION
- Takehiro TSURITANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INTEGRATED OPERATION MANAGEMENT SYSTEM OF VIDEO TRANSMISSION NETWOR...
- Publication number 20080263615
- Publication date Oct 23, 2008
- KDDI CORPORATION
- Shuntaro KASHIHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Link connectivity verification method
- Publication number 20080013949
- Publication date Jan 17, 2008
- KDDI CORPORATION
- Noboru Yoshikane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wavelength service providing apparatus in all-optical network
- Publication number 20070127924
- Publication date Jun 7, 2007
- KDDI CORPORATION
- Takehiro Tsuritani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Link system for photonic cross connect and transmission apparatus
- Publication number 20060177219
- Publication date Aug 10, 2006
- KDDI CORPORATION
- Takehiro Tsuritani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical receiver and optical add/drop apparatus
- Publication number 20040141749
- Publication date Jul 22, 2004
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical clock multiplier and method thereof
- Publication number 20040001245
- Publication date Jan 1, 2004
- Michiaki Hayashi
- G02 - OPTICS
Information Patent Application
Data/audio multiplexer/demultiplexer, data/audio multiplex transmis...
- Publication number 20030193931
- Publication date Oct 16, 2003
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Data transmission system, transmission method of optical network mo...
- Publication number 20030185564
- Publication date Oct 2, 2003
- Michiaki Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical reception apparatus and optical transmission system
- Publication number 20030002116
- Publication date Jan 2, 2003
- Michiaki Hayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical crossconnect system and its controller and method
- Publication number 20020197001
- Publication date Dec 26, 2002
- Michiaki Hayashi
- G02 - OPTICS
Information Patent Application
Optical signal regenerator
- Publication number 20020191259
- Publication date Dec 19, 2002
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Four fiber ring network optical switching circuit using branched in...
- Publication number 20020075535
- Publication date Jun 20, 2002
- Shu Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Broadcast type optical network system using loop shaped optical net...
- Publication number 20020063925
- Publication date May 30, 2002
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Signal demultiplexing device and signal routing device in high spee...
- Publication number 20010021046
- Publication date Sep 13, 2001
- Tomohiro Otani
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tomohiro Otani

Person

Patents Grantslast 30 patents

Optical signal quality monitoring apparatus

Link connectivity verification method

Wavelength service providing apparatus in all-optical network

Link system for photonic cross connect and transmission apparatus

Data transmission system, transmission method of optical network mo...

Optical signal regenerator

Optical reception apparatus and optical transmission system

Optical clock multiplier and method thereof

Four fiber ring network optical switching circuit using branched in...

Signal demultiplexing device and signal routing device in high spee...

Optical digital regenerator

Optical transmission system, optically branching apparatus and opti...

Demultiplexer device for wavelength-division multiplexed optical fi...

Noise suppression method for wavelength division multiplexing trans...

Patents Applicationslast 30 patents

OPTICAL SIGNAL QUALITY MONITORING APPARATUS

INTEGRATED OPERATION MANAGEMENT SYSTEM OF VIDEO TRANSMISSION NETWOR...

Link connectivity verification method

Wavelength service providing apparatus in all-optical network

Link system for photonic cross connect and transmission apparatus

Optical receiver and optical add/drop apparatus

Optical clock multiplier and method thereof

Data/audio multiplexer/demultiplexer, data/audio multiplex transmis...

Data transmission system, transmission method of optical network mo...

Optical reception apparatus and optical transmission system

Optical crossconnect system and its controller and method

Optical signal regenerator

Four fiber ring network optical switching circuit using branched in...

Broadcast type optical network system using loop shaped optical net...

Signal demultiplexing device and signal routing device in high spee...