Akira Umeda

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Tsukuba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for testing frequency response characteristics of laser disp...
- Patent number 6,286,359
- Issue date Sep 11, 2001
- Director-General of the Agency of Industrial Science and Technology
- Akira Umeda
- G02 - OPTICS
Information Patent Grant
Method for testing frequency response characteristics of laser disp...
- Patent number 5,952,554
- Issue date Sep 14, 1999
- Director-General of the Agency of Industrial Science and Technology
- Akira Umeda
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for measuring dynamic response characteristics...
- Patent number 5,000,030
- Issue date Mar 19, 1991
- Agency of Industrial Science and Technology
- Akira Umeda
- G01 - MEASURING TESTING