Chang; Tzyy-Shuh

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Tzyy-Shuh.The latest application filed is for "method and apparatus for uniformly focused ring light".

Company Profile

0.13.13

Chang; Tzyy-Shuh - Ann Arbor MI

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method and apparatus for uniformly focused ring light Grant 9,594,293 - Chang , et al. March 14, 2	2017-03-14
Method And Apparatus For Uniformly Focused Ring Light App 20160154292 - Chang; Tzyy-Shuh ; et al.	2016-06-02
Method and apparatus for uniformly focused ring light Grant 9,291,877 - Chang , et al. March 22, 2	2016-03-22
Method And Apparatus Of Profile Measurement App 20140152771 - Chang; Tzyy-Shuh	2014-06-05
Method And Apparatus For Uniformly Focused Ring Light App 20140132793 - Chang; Tzyy-Shuh ; et al.	2014-05-15
Method and apparatus of a portable imaging-based measurement with self calibration Grant 8,233,157 - Chang , et al. July 31, 2	2012-07-31
Surface flaw detection and verification on metal bars by Eddy current testing and imaging system Grant 8,143,885 - Chang , et al. March 27, 2	2012-03-27
Method And Apparatus Of A Portable Imaging-based Measurement With Self Calibration App 20110075159 - Chang; Tzyy-Shuh ; et al.	2011-03-31
Method and apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing Grant 7,861,567 - Chang , et al. January 4, 2	2011-01-04
Surface Flaw Detection And Verification On Metal Bars App 20100109659 - Chang; Tzyy-Shuh ; et al.	2010-05-06
Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar Grant 7,627,163 - Chang , et al. December 1, 2	2009-12-01
Apparatus And Method For Detecting Surface Defects On A Workpiece Such As A Rolled/drawn Metal Bar App 20090046923 - Chang; Tzyy-Shuh ; et al.	2009-02-19
Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar Grant 7,460,703 - Chang , et al. December 2, 2	2008-12-02
Method And Apparatus To Control The Lateral Motion Of A Long Metal Bar Being Formed By A Mechanical Process Such As Rolling Or Drawing App 20080073401 - Chang; Tzyy-Shuh ; et al.	2008-03-27
Apparatus And Method For Detecting Surface Defects On A Workpiece Such As A Rolled/drawn Metal Bar App 20080063426 - CHANG; TZYY-SHUH ; et al.	2008-03-13
Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar Grant 7,324,681 - Chang , et al. January 29, 2	2008-01-29
Method and an apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing Grant 7,275,404 - Chang , et al. October 2, 2	2007-10-02
Apparatus and method for movement measurement and position tracking of long, non-textured metal objects at an elevated temperature Grant 6,992,756 - Chang January 31, 2	2006-01-31
Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar App 20060002605 - Chang; Tzyy-Shuh ; et al.	2006-01-05
Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar Grant 6,950,546 - Chang , et al. September 27, 2	2005-09-27
Optical observation device and method for observing articles at elevated temperatures Grant 6,859,285 - Chang February 22, 2	2005-02-22
Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar App 20040105001 - Chang, Tzyy-Shuh ; et al.	2004-06-03
Engine bearing inspection system Grant 6,661,506 - Chang December 9, 2	2003-12-09
Engine bearing inspection system App 20020024658 - Chang, Tzyy-Shuh	2002-02-28
Optical observation device and method for observing articles at elevated temperatures App 20020008203 - Chang, Tzyy-Shuh	2002-01-24
Method of simultaneously applying multiple illumination schemes for simultaneous image acquisition in an imaging system App 20010030744 - Chang, Tzyy-Shuh	2001-10-18

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