Patents by Inventor Hsun-Hau Huang
Hsun-Hau Huang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9594293Abstract: An apparatus and method for the function to control the lighting direction onto an object surface, focus the light, and maintain the lighting uniformity. A ring light system takes advantage of a contoured reflector to match with the uniform, non-focused ring light source, and converting the non-focused ring light source into a focused uniform ring light source.Type: GrantFiled: February 9, 2016Date of Patent: March 14, 2017Inventors: Tzyy-Shuh Chang, Changhung Lin, Hsun-Hau Huang
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Publication number: 20160154292Abstract: An apparatus and method for the function to control the lighting direction onto an object surface, focus the light, and maintain the lighting uniformity. A ring light system takes advantage of a contoured reflector to match with the uniform, non-focused ring light source, and converting the non-focused ring light source into a focused uniform ring light source.Type: ApplicationFiled: February 9, 2016Publication date: June 2, 2016Inventors: Tzyy-Shuh Chang, Changhung Lin, Hsun-Hau Huang
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Patent number: 9291877Abstract: An apparatus and method for the function to control the lighting direction onto an object surface, focus the light, and maintain the lighting uniformity. A ring light system takes advantage of a contoured reflector to match with the uniform, non-focused ring light source, and converting the non-focused ring light source into a focused uniform ring light source.Type: GrantFiled: November 6, 2013Date of Patent: March 22, 2016Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Changhung Lin
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Publication number: 20140132793Abstract: An apparatus and method for the function to control the lighting direction onto an object surface, focus the light, and maintain the lighting uniformity. A ring light system takes advantage of a contoured reflector to match with the uniform, non-focused ring light source, and converting the non-focused ring light source into a focused uniform ring light source.Type: ApplicationFiled: November 6, 2013Publication date: May 15, 2014Applicant: OG TECHNOLOGIES, INC.Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Changhung Lin
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Patent number: 8233157Abstract: A portable imaging-based measurement device is developed to perform 2D projection based measurements on an object that is difficult or dangerous to access. This device is equipped with self calibration capability and built-in operating procedures to ensure proper imaging based measurement.Type: GrantFiled: September 28, 2010Date of Patent: July 31, 2012Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang
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Patent number: 8143885Abstract: An inspection system for detecting flaws on a moving metal (e.g., steel) bar coordinates the operation of an eddy current testing (ECT)-based flaw detection apparatus and an imaging-based flaw detection apparatus. The ECT-based flaw detection apparatus and the imaging-based flaw detection apparatus are disposed along a movement path in a predetermined relationship with each other, for example, as a predetermined fixed offset distance therebetween. A synchronizing mechanism synchronizes the output data streams from the two flaw detection apparatuses based on the predetermined relationship, so as to align the data streams as function of the axial position on the metal bar. A processing unit is configured to process the synchronized data streams for the detection of flaws, which are then also synchronized (axial position).Type: GrantFiled: October 27, 2009Date of Patent: March 27, 2012Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Kazuomi Tomita, Ryuichi Seki
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Publication number: 20110075159Abstract: A portable imaging-based measurement device is developed to perform 2D projection based measurements on an object that is difficult or dangerous to access. This device is equipped with self calibration capability and built-in operating procedures to ensure proper imaging based measurement.Type: ApplicationFiled: September 28, 2010Publication date: March 31, 2011Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang
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Patent number: 7861567Abstract: An apparatus to control lateral motion of a bar moving along a guidance path includes a pair of rotatable hubs each having at least first and second rollers at locations around the perimeter of the hub. The first roller has a first retaining groove of a first radius and the second roller has a second groove of a second radius smaller than the first radius. Each hub further includes at least one guiding element located between the rollers with a guide channel extending in the outer surface. A mounting system allows the hubs to be rotated between first and second positions. In the first position the first rollers oppose each other forming a guideway having a first, enlarged diameter for capturing a free end of an approaching bar. In the second position the second rollers form a second, smaller diameter to match the actual size of the bar.Type: GrantFiled: August 28, 2007Date of Patent: January 4, 2011Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Chang-Hung Lin
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Publication number: 20100109659Abstract: An inspection system for detecting flaws on a moving metal (e.g., steel) bar coordinates the operation of an eddy current testing (ECT)-based flaw detection apparatus and an imaging-based flaw detection apparatus. The ECT-based flaw detection apparatus and the imaging-based flaw detection apparatus are disposed along a movement path in a predetermined relationship with each other, for example, as a predetermined fixed offset distance therebetween. A synchronizing mechanism synchronizes the output data streams from the two flaw detection apparatuses based on the predetermined relationship, so as to align the data streams as function of the axial position on the metal bar. A processing unit is configured to process the synchronized data streams for the detection of flaws, which are then also synchronized (axial position).Type: ApplicationFiled: October 27, 2009Publication date: May 6, 2010Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Kazuomi Tomita, Ryuichi Seki
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Patent number: 7627163Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured. A removable cassette includes various mirrors.Type: GrantFiled: September 24, 2008Date of Patent: December 1, 2009Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang
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Publication number: 20090046923Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured. A removable cassette includes various mirrors.Type: ApplicationFiled: September 24, 2008Publication date: February 19, 2009Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang
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Patent number: 7460703Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured. A removable cassette includes various mirrors.Type: GrantFiled: October 31, 2007Date of Patent: December 2, 2008Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang
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Publication number: 20080073401Abstract: An apparatus to control lateral motion of a bar moving along a guidance path includes a pair of rotatable hubs each having at least first and second rollers at locations around the perimeter of the hub. The first roller has a first retaining groove of a first radius and the second roller has a second groove of a second radius smaller than the first radius. Each hub further includes at least one guiding element located between the rollers with a guide channel extending in the outer surface. A mounting system allows the hubs to be rotated between first and second positions. In the first position the first rollers oppose each other forming a guideway having a first, enlarged diameter for capturing a free end of an approaching bar. In the second position the second rollers form a second, smaller diameter to match the actual size of the bar.Type: ApplicationFiled: August 28, 2007Publication date: March 27, 2008Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Chang-Hung Lin
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Publication number: 20080063426Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured. A removable cassette includes various mirrors.Type: ApplicationFiled: October 31, 2007Publication date: March 13, 2008Inventors: TZYY-SHUH CHANG, DANIEL GUTCHESS, HSUN-HAU HUANG
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Patent number: 7324681Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured.Type: GrantFiled: August 2, 2005Date of Patent: January 29, 2008Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang
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Patent number: 7275404Abstract: An adjustable guide, includes two or more mechanisms each having a rotatable retaining element containing a retaining groove with a variable radius in its perimeter surface. The grooves form a guidance path to control the lateral, i.e. non-axial, motion of a long bar moving along a longitudinal axis during a production process. The diameter of the guidance path varies according to the variable radii of the grooves. The guidance path increases in size at a predetermined rate, from a point of origin to an end point on the retaining groove. Rotating the retaining elements causes the diameter of the retaining grooves to change so that the size of the guidance path can be changed to match the diameter of the bar being rolled, size of the guidance path can be changed to fit the diameter of a new bar rolled without having to exchange the guide for a different sized guide, reduce fiction between the bar and the guide, a media, such as compressed air, can be injected between the retaining elements via orifices.Type: GrantFiled: November 22, 2005Date of Patent: October 2, 2007Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Hsun-Hau Huang, Chang-Hung Lin
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Publication number: 20060002605Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured.Type: ApplicationFiled: August 2, 2005Publication date: January 5, 2006Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang
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Patent number: 6950546Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured.Type: GrantFiled: December 27, 2002Date of Patent: September 27, 2005Assignee: OG Technologies, Inc.Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang
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Publication number: 20040105001Abstract: The present invention is directed to solving the problems associated with the detection of surface defects on metal bars as well as the problems associated with applying metal flat inspection systems to metal bars for non-destructive surface defects detection. A specially designed imaging system, which is comprised of a computing unit, line lights and high data rate line scan cameras, is developed for the aforementioned purpose. The target application is the metal bars (1) that have a circumference/cross-section-area ratio equal to or smaller than 4.25 when the cross section area is unity for the given shape, (2) whose cross-sections are round, oval, or in the shape of a polygon, and (3) are manufactured by mechanically cross-section reduction processes. The said metal can be steel, stainless steel, aluminum, copper, bronze, titanium, nickel, and so forth, and/or their alloys. The said metal bars can be at the temperature when they are being manufactured.Type: ApplicationFiled: December 27, 2002Publication date: June 3, 2004Applicant: OG TECHNOLOGIES, INC., a MICHIGAN CORPORATION,Inventors: Tzyy-Shuh Chang, Daniel Gutchess, Hsun-Hau Huang