Tadashi Hatano

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmitter
- Patent number 7,274,837
- Issue date Sep 25, 2007
- Opnext Japan, Inc.
- Tomokazu Tanaka
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical transmission module
- Patent number 7,035,302
- Issue date Apr 25, 2006
- OpNext Japan, Inc.
- Tomokazu Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transmission module with light element temperature control
- Patent number 6,868,235
- Issue date Mar 15, 2005
- Opnext Japan, Inc
- Shigeru Tokita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Temperature compensating circuit, temperature compensating logarith...
- Patent number 6,603,110
- Issue date Aug 5, 2003
- Hitachi, Ltd.
- Akihiro Hayami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Temperature compensating circuit, temperature compensating logarith...
- Patent number 6,426,495
- Issue date Jul 30, 2002
- Hitachi, Ltd.
- Akihiro Hayami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength stability control apparatus, optical transmitter...
- Patent number 6,229,832
- Issue date May 8, 2001
- Hitachi, Ltd.
- Naohiko Baba
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Receptacle type optical apparatus
- Publication number 20080008429
- Publication date Jan 10, 2008
- Futoshi Endou
- G02 - OPTICS
Information Patent Application
Optical transmitter
- Publication number 20050175312
- Publication date Aug 11, 2005
- Tomokazu Tanaka
- G02 - OPTICS
Information Patent Application
Optical transmission module
- Publication number 20040114650
- Publication date Jun 17, 2004
- OpNext Japan, Inc.
- Tomokazu Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Temperature compensating circuit, temperature compensating logarith...
- Publication number 20040004179
- Publication date Jan 8, 2004
- Akihiro Hayami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Temperature compensating circuit, temperature compensating logarith...
- Publication number 20030029991
- Publication date Feb 13, 2003
- Akihiro Hayami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission module and an apparatus for performing the tra...
- Publication number 20030011877
- Publication date Jan 16, 2003
- Shigeru Tokita
- H01 - BASIC ELECTRIC ELEMENTS