Toshihiko Hirooka

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Miyagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser apparatus
- Patent number 8,170,071
- Issue date May 1, 2012
- Advantest Corporation
- Masataka Nakazawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transmission method and optical transmission apparatus
- Patent number 7,747,175
- Issue date Jun 29, 2010
- Japan Science and Technology Agency
- Toshihiko Hirooka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
OTDM transmission method and apparatus
- Patent number 7,672,593
- Issue date Mar 2, 2010
- Japan Science and Technology Agency
- Toshihiko Hirooka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical pulse compressor, optical function generator, optical pulse...
- Patent number 7,428,096
- Issue date Sep 23, 2008
- Japan Science and Technology Agency
- Masataka Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical fourier transform device and method
- Patent number 7,352,504
- Issue date Apr 1, 2008
- Japan Science and Technology Agency
- Toshihiko Hirooka
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
LASER APPARATUS
- Publication number 20100061408
- Publication date Mar 11, 2010
- Advantest Corporation
- MASATAKA NAKAZAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical fourier transform device and method
- Publication number 20070273958
- Publication date Nov 29, 2007
- Toshihiko Hirooka
- G02 - OPTICS
Information Patent Application
Otdm transmission method and apparatus
- Publication number 20070109957
- Publication date May 17, 2007
- Japan Science and Technology Agency
- Toshihiko Hirooka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical pulse compressor and optical function generator, optical pu...
- Publication number 20070025728
- Publication date Feb 1, 2007
- Japan Science and Technology Agency
- Masataka Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission method and optical transmission device
- Publication number 20060232847
- Publication date Oct 19, 2006
- Japan Science and Technology Agency
- Toshihiko Hirooka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE