Yoichi Honzawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmission device and optical transmission system using t...
- Patent number 7,031,620
- Issue date Apr 18, 2006
- OpNext Japan, Inc.
- Shigeru Tokita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Optical wavelength stabilization circuit, optical transmitter and o...
- Patent number 6,693,932
- Issue date Feb 17, 2004
- Opnext Japan, Inc
- Mitsuo Akashi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

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
Information Patent Application
Optical wavelength stabilization circuit, optical transmitter and o...
- Publication number 20020136249
- Publication date Sep 26, 2002
- Opnext Japan, Inc.
- Mitsuo Akashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical transmission device and optical transmission system using t...
- Publication number 20020061035
- Publication date May 23, 2002
- Hitachi,Ltd.
- Shigeru Tokita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE