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David K. Hsu
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Ames, IA, US
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last 30 patents
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Patent Grant
Non-destructive inspections and the display of inspection results
Patent number
6,327,921
Issue date
Dec 11, 2001
Iowa State University
David K. Hsu
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for acoustically inspecting a workpiece
Patent number
5,469,744
Issue date
Nov 28, 1995
Iowa State University Research Foundation Inc.
Thadd C. Patton
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Method and means of transmitting and receiving broad-band unipolar,...
Patent number
5,269,189
Issue date
Dec 14, 1993
Iowa State University Research Foundation, Inc.
Donald O. Thompson
G01 - MEASURING TESTING
Information
Patent Grant
Ultrasonic unipolar pulse/echo instrument
Patent number
5,199,299
Issue date
Apr 6, 1993
Iowa State University Research Foundation, Inc.
Michael S. Hughes
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Apparatus and method for detection of icing onset and ice thickness
Patent number
5,095,754
Issue date
Mar 17, 1992
Simpson; Jeffrey A.
David K. Hsu
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Means and method for nonuniform poling of piezoelectric transducers
Patent number
4,961,252
Issue date
Oct 9, 1990
Iowa State University Research Foundation, Inc.
David K. Hsu
G01 - MEASURING TESTING
Information
Patent Grant
Method for fabricating prescribed flaws in the interior of metals
Patent number
4,810,462
Issue date
Mar 7, 1989
Iowa State University Research Foundation, Inc.
David K. Hsu
B22 - CASTING POWDER METALLURGY