Patents by Inventor Kuo-Shu Chang
Kuo-Shu Chang 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: 9782306Abstract: A secondary internal topsheet and leg wrap structure is provided in a disposable absorbent garment such as a diaper or training pants. The leg wrap structure has a base layer, a top layer, and an elastic construction disposed inbetween. The elastic construction includes a plurality of spaced apart elastic elements that are aligned in a generally in generally parallel relation. The leg wrap structure and secondary topsheet provides for the efficient formation of a reservoir and a plurality of fluid dams each capable of capturing a quantity of fluid to minimize the occurrence of fluid leaks from the absorbent article. Methods of forming such absorbent articles are disclosed.Type: GrantFiled: June 30, 2014Date of Patent: October 10, 2017Assignee: DSG Technology Holdings Ltd.Inventors: Patrick King Yu Tsang, Andrew Wright, Ian Walker, Edward Kuo-Shu Chang
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Publication number: 20140316365Abstract: A secondary internal topsheet and leg wrap structure is provided in a disposable absorbent garment such as a diaper or training pants. The leg wrap structure has a base layer, a top layer, and an elastic construction disposed inbetween. The elastic construction includes a plurality of spaced apart elastic elements that are aligned in a generally in generally parallel relation. The leg wrap structure and secondary topsheet provides for the efficient formation of a reservoir and a plurality of fluid dams each capable of capturing a quantity of fluid to minimize the occurrence of fluid leaks from the absorbent article. Methods of forming such absorbent articles are disclosed.Type: ApplicationFiled: June 30, 2014Publication date: October 23, 2014Inventors: Patrick King Yu Tsang, Andrew Wright, Ian Walker, Edward Kuo-Shu Chang
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Publication number: 20110015607Abstract: A leg wrap structure is provided in a disposable absorbent garment such as a diaper or training pants. The leg wrap structure has a base layer, a top layer, and an elastic construction disposed therebetween. The elastic construction includes a plurality of spaced apart (e.g. generally equally spaced apart) elastic elements (e.g. strands or threads) that are aligned in a generally in generally parallel relation. Further, the top and base layers define a region of inelasticity. The leg wrap structure provides for the efficient formation of a reservoir and a plurality of fluid dams each capable of capturing a quantity of fluid to minimize the occurrence of fluid leaks from the absorbent article. Methods of forming such absorbent articles are disclosed.Type: ApplicationFiled: April 21, 2010Publication date: January 20, 2011Applicant: DSG TECHNOLOGY HOLDINGS LTD.Inventors: EDWARD KUO-SHU CHANG, Anne Smid, Patrick King Yu Tsang, Ian Walker, Andrew Wright
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Publication number: 20080093015Abstract: A method of making an elastic composite is provided. The method entails conveying a first web of material along a web plane path. The method also entails applying a first section of a first elastic strand onto the first web and generally transversely to the web plane path and applying a second section of a second elastic strand onto the first web and generally transversely to the web plane path. These applying steps are repeated while performing the conveying step, thereby arranging a plurality of first and second elastic elements on the first web, in generally parallel relation to one another. The resultant composite is suitable for incorporation into a disposable absorbent garment, textile or fabric structure, and the like.Type: ApplicationFiled: May 9, 2007Publication date: April 24, 2008Applicant: DSG Technology Holdings Ltd.Inventors: Kuo-Shu Chang, Chang-Hwa Grace, Anne Smid, Patrick Tsang, Andrew Wright, William Sayers
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Publication number: 20070246152Abstract: A method of making an elastic composite is provided. The method entails conveying a first web of material along a web plane path. The method also entails applying a first section of a first elastic strand onto the first web and generally transversely to the web plane path and applying a second section of a second elastic strand onto the first web and generally transversely to the web plane path. These applying steps are repeated while performing the conveying step, thereby arranging a plurality of first and second elastic elements on the first web, in generally parallel relation to one another. The resultant composite is suitable for incorporation into a disposable absorbent garment, textile or fabric structure, and the like.Type: ApplicationFiled: June 26, 2006Publication date: October 25, 2007Applicant: DSG Technology Holdings LtdInventors: Kuo-Shu Chang, Anne Smid, Patrick Tsang, Andrew Wright
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Publication number: 20070197987Abstract: A method of making an absorbent composite that includes a first fabric, a second fabric, and particles positioned between the two fabrics and absorbent articles made from the absorbent composite. The particles are secured between the two fabric using adhesive, thermal plastic or combinations thereof. The fabrics are bonded together in a manner that limits particle movement between the fabrics. The bond pattern may define pockets or other shapes. In applications in which the bond pattern forms pockets, the particles may be positioned in the pockets. The particles may be SAP particles or other particles with advantageous properties.Type: ApplicationFiled: February 22, 2006Publication date: August 23, 2007Inventors: Patrick Tsang, Kuo-Shu Chang, Andrew Wright
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Publication number: 20070016155Abstract: A disposable absorbent article defining an absorbent chassis adapted to wrap around portions of a torso and a pair of side panels adapted to secure the absorbent chassis about the torso during use. The side panels include at least a pair of substantially inextensible zones and a zone of substantial elasticity providing partial extensiblity to the side panels. The side panels may be secured to the chassis at one of the inextensible zones and be provided with a fastener component at another inextensible zone. At least portions of opposed edges of the side panels are shaped into a nonparallel configuration to improve fit, comfort and exudate control of the absorbent article.Type: ApplicationFiled: June 26, 2006Publication date: January 18, 2007Inventors: Kuo-Shu Chang, Andrew Wright, Patrick Tsang, Steven Linton
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Publication number: 20060241560Abstract: A pant-like, refastenable, disposable absorbent article which defines a front waist region, a back waist region and a pair of opposed side panels which extend outwardly from the side edges of the absorbent chassis in the front or back waist region. Each side panel includes at least one elastic zone providing panel extensibility and at least a pair of inextensible zones adjacent an elastic zone. Fastener components of the side panels are used to connect the front waist region to the rear waist region to define the pant-like article. The side panels may also be defined by a pair of side panel margins which extend outwardly from the side edges of the absorbent chassis in both the front waist region and the back waist region and which are joined at the user's side.Type: ApplicationFiled: April 22, 2005Publication date: October 26, 2006Inventors: Kuo-Shu Chang, Patrick Tsang, Andrew Wright
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Publication number: 20060122571Abstract: A leg wrap structure is provided in a disposable absorbent garment such as a diaper or training pants. The leg wrap structure has a base layer, a top layer, and an elastic construction disposed therebetween. The elastic construction includes a plurality of spaced apart (e.g. generally equally spaced apart) elastic elements (e.g. strands or threads) that are aligned in a generally in generally parallel relation. Further, the top and base layers define a region of inelasticity. The leg wrap structure provides for the efficient formation of a reservoir and a plurality of fluid dams each capable of capturing a quantity of fluid to minimize the occurrence of fluid leaks from the absorbent article. Methods of forming such absorbent articles are disclosed.Type: ApplicationFiled: December 6, 2005Publication date: June 8, 2006Inventors: Kuo-Shu Chang, Anne Smid, Patrick Yu Tsang, Ian Walker, Andrew Wright
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Publication number: 20050139311Abstract: A method is provided for making an elastic composite for incorporation into a disposable absorbent garment. An elastic element applicator is provided that is configured to move a section of a continuous strand of elastic element generally about a plane. A first web of material is conveyed in a first web moving direction such that the first web intersects the plane. Then, the applicator is operated to move the elastic element about the plane, thereby applying the section of elastic element onto the first web along a direction generally transverse to the web moving direction and such that the first web draws the continuous elastic strand from the elastic element applicator as the first web is conveyed away from the plane. The elastic element applicator may be in the form of a spin cylinder or bracket that is operated to spin the elastic element about the moving first web, thereby applying the elastic element on the first web.Type: ApplicationFiled: December 23, 2004Publication date: June 30, 2005Applicant: DSG Technology Holdings LtdInventors: Kuo-Shu Chang, Anne Smid, Patrick King Tsang, Andrew Wright
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Publication number: 20050131373Abstract: An elastic composite is provided in a disposable absorbent garment such as a diaper or training pants. The elastic composite has a base layer, a top layer, and an elastic construction disposed therebetween. The elastic construction includes a plurality of spaced apart (e.g. generally equally spaced apart) elastic elements (e.g. strands or threads) that are aligned in a generally cross machine direction and in generally parallel relation. Further, the top and base layers define a first longitudinally extending side edge and a second longitudinally extending side edge between which, the elastic construction is disposed. The elastic composite further includes an elasticized region, wherein the elastic construction is disposed, a first non-elasticized region disposed between the first side edge and the elasticized region, and a second non-elasticized region disposed between the second side edge and the elasticized region.Type: ApplicationFiled: December 11, 2003Publication date: June 16, 2005Inventors: Andrew Wright, Kuo-Shu Chang, Patrick Tsang, Anne Smid
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Patent number: 6856380Abstract: An aerial vehicle speed correlation method for two-dimensional visual reproduction of laser radar images of the present invention is capable of altering and controlling the output timing of the invention's laser radar system rated output lines based on the moving distance and the speed of an aerial vehicle. The speed error correlation method of the present invention is not limited to outputting one output line for every scanned line (N) for reducing the accumulation of geometric distortion error along the in-track direction of the scan frame. The speed correlation method of the present invention uses a set of generated fire table of equation to correct tangential error along the cross-track direction and to improve the reproduction quality of the laser radar images.Type: GrantFiled: January 6, 2003Date of Patent: February 15, 2005Assignee: Chun-Shan Institute of Science and TechnologyInventors: Kwo-Jyr Wong, Kuo-Shu Chang, Re-Fun Chen
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Publication number: 20040169844Abstract: An aerial vehicle speed correlation method for two-dimensional visual reproduction of laser radar images of the present invention is capable of altering and controlling the output timing of the system's rated output lines based on the moving distance and the speed of [[the]] an aerial vehicle. The speed error correlation method of the present invention is not limited to outputting one output line for every scanned line (N) to reduce the accumulation of geometric distortion error along the in-track direction of the scan frame. The speed correlation method of the present invention uses a set of generated fire table of equations to correct tangential error along the cross-track direction and to improve the reproduction quality of the laser radar images.Type: ApplicationFiled: January 6, 2003Publication date: September 2, 2004Inventors: Kwo-Jyr Wong, Kuo-Shu Chang, Re-Fun Chen
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Publication number: 20040120549Abstract: Half-plane predictive cancellation method for laser radar distance image noise employed in the present invention can perform real-time adjustment while conducting simultaneous pixel generation and noise cancellation during the scanning process. The same method can also be used in performing line-by-line operation after completion of each line scan. The latter half-plane of the line-by-line scanning operation can shift from left-to-right or right-to-left or reverse scanning direction after the completion of each line scan to decrease the possibilities of error accumulation.Type: ApplicationFiled: December 24, 2002Publication date: June 24, 2004Applicant: Chung-Shan Institute of Science and TechnologyInventors: Kwo-Jyr Wong, Kuo-Shu Chang