Patents by Inventor Lung-Chuan Wang
Lung-Chuan Wang 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: 11953521Abstract: Provided is a probe card, comprising a guide plate and a shielding structure of single-layer or multi-layer. The guide plate comprises an upper surface, a lower surface, and at least one guide hole passing through the upper surface and the lower surface, and the guide hole is provided with an inner wall surface. At least one layer of the shielding structure is made of an electromagnetic absorption material or an electromagnetic reflection material, and the shielding structure is not connected to a ground. Each layer of the shielding structure is formed on the inner wall surface of the guide hole by means of atomic layer deposition or atomic layer etching, and a thickness of each layer is less than 1000 nm.Type: GrantFiled: August 10, 2022Date of Patent: April 9, 2024Assignee: BAO HONG SEMI TECHNOLOGY CO., LTD.Inventors: Chao-Cheng Ting, Li-Hong Lu, Huai-Yi Wang, Lung-Chuan Tsai
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Patent number: 9303342Abstract: A composite fiber having elastomer and method for making the same, and a substrate having the composite fiber and method for making the same are provided. The composite fiber includes a first composition and a second composition. The first composition is thermoplastic non-elastomer, and the second composition is thermoplastic elastomer (TPE). The second composition is in an amount of 5 to 70 weight % of the composite fiber. The first composition and the second composition are alternately distributed in a circumference of a cross-section of the composite fiber, and the length of the second composition is less than 50% of the total length of the circumference. The TPE can be dispersed uniformly and increase the adhesion between fibers, and the segmented fiber cross-section thereof further prevents the TPE from becoming too adhesive and affecting the processing during the fabrication of fibers and non-woven fabric substrates.Type: GrantFiled: June 19, 2013Date of Patent: April 5, 2016Assignee: SAN FANG CHEMICAL INDUSTRY CO., LTD.Inventors: Lung-Chuan Wang, Chung-Chih Feng, Chih-Yi Lin, Szu-Wei Huang, Kao-Lung Yang, Jui-Peng Tung
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Publication number: 20130280977Abstract: A composite fiber having elastomer and method for making the same, and a substrate having the composite fiber and method for making the same are provided. The composite fiber includes a first composition and a second composition. The first composition is thermoplastic non-elastomer, and the second composition is thermoplastic elastomer (TPE). The second composition is in an amount of 5 to 70 weight % of the composite fiber. The first composition and the second composition are alternately distributed in a circumference of a cross-section of the composite fiber, and the length of the second composition is less than 50% of the total length of the circumference. The TPE can be dispersed uniformly and increase the adhesion between fibers, and the segmented fiber cross-section thereof further prevents the TPE from becoming too adhesive and affecting the processing during the fabrication of fibers and non-woven fabric substrates.Type: ApplicationFiled: June 19, 2013Publication date: October 24, 2013Inventors: LUNG-CHUAN WANG, CHUNG-CHIH FENG, CHIH-YI LIN, SZU-WEI HUANG, KAO-LUNG YANG, JUI- PENG TUNG
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Publication number: 20120225248Abstract: The present invention relates to an artificial leather having composite fibers and a method for making the same. The artificial leather includes a substrate and a flexible film. The substrate includes a plurality of composite fibers. Each composite fiber includes a first composition and a second composition. The first composition is a thermoplastic non-elastomer, and the second composition is a thermoplastic elastomer. The second composition accounts for 5% to 70% of the total weight of the composite fiber. The second composition at the intersecting points between the composite fibers is molten to form a flexible bonding point. The flexible film is located on a surface of the substrate, and the material of the flexible film is an elastic polymer or a latex. Therefore, the artificial leather has excellent textile sensation and physical properties.Type: ApplicationFiled: February 21, 2012Publication date: September 6, 2012Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.Inventors: LUNG-CHUAN WANG, CHUNG-CHIH FENG, JUNG-CHING CHANG, HSIEN-CHANG HUNG, CHIEN-TE WU, TI-SHUN YEH
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Publication number: 20110159235Abstract: A composite fiber having elastomer and method for making the same, and a substrate having the composite fiber and method for making the same are provided. The composite fiber includes a first composition and a second composition. The first composition is thermoplastic non-elastomer, and the second composition is thermoplastic elastomer (TPE). The second composition is in an amount of 5 to 70 weight % of the composite fiber. The first composition and the second composition are alternately distributed in a circumference of a cross-section of the composite fiber, and the length of the second composition is less than 50% of the total length of the circumference. The TPE can be dispersed uniformly and increase the adhesion between fibers, and the segmented fiber cross-section thereof further prevents the TPE from becoming too adhesive and affecting the processing during the fabrication of fibers and non-woven fabric substrates.Type: ApplicationFiled: November 17, 2010Publication date: June 30, 2011Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.Inventors: LUNG-CHUAN WANG, CHUNG-CHIH FENG, CHIH-YI LIN, SZU-WEI HUANG, KAO-LUNG YANG, JUI-PENG TUNG
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Publication number: 20090098785Abstract: Artificial leather includes a non-woven fabric made of split type conjugate fibers and a resin material for submerging or coating the non-woven fabric. The conjugate fibers are made from a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25% by conjugate spinning. Each of the conjugate fibers is split into 24 to 128 segments.Type: ApplicationFiled: December 19, 2008Publication date: April 16, 2009Inventors: Lung-Chuan Wang, Chung-Chih Feng, Kuo-Kuang Cheng, Ta-Min Cheng, Chih-Yi Lin, Kuan-Hsiang Chang, Gao-Long Yang
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Patent number: 7494697Abstract: There is provided a method for splitting a split type conjugate fiber. The method includes four steps. Firstly, there is provided a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25%. Secondly, a conjugate fiber is made of the first and second polymers by conjugate spinning. Thirdly, the conjugate fiber is submerged in water so that the conjugate fiber contains water. Finally, the conjugate fiber is heated and split into fine fibers.Type: GrantFiled: May 11, 2006Date of Patent: February 24, 2009Assignee: San Fang Chemical Industry Co., Ltd.Inventors: Lung-Chuan Wang, Chung-Chih Feng, Kuo-Kuang Cheng, Ta-Min Cheng, Chih-Yi Lin, Kuan-Hsiang Chang, Gao-Long Yang
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Publication number: 20080095945Abstract: A method for making a macromolecular laminate is disclosed. Firstly, a high solid-content polyurethane resin is prepared. The high solid-content polyurethane resin has a solid content higher than 80% by weight and a viscosity from 20000 to 60000 cps/30° C. The high solid-content polyurethane resin is liquid at the room temperature. The high solid-content polyurethane resin is mixed with additives to form a first type of polyurethane resin compound with a solid content higher than 50% by weight and a viscosity from 20000 to 60000 cps/30° C. The first type of polyurethane resin compound is liquid at room temperature and has a pot life of at least three hours at room temperature. The first type of polyurethane resin compound is coated on a releasing paper to make a main layer. Then, the releasing paper is removed from the main layer to make a laminate.Type: ApplicationFiled: December 14, 2007Publication date: April 24, 2008Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu
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Publication number: 20080075938Abstract: A macromolecular laminate includes a main layer made of a first type of polyurethane resin compound that is liquid at room temperature. The first type of polyurethane resin compound is made through mixing polyurethane resin with solid content higher than 50% by weight with additives. An auxiliary layer may be formed on the main layer and made of a second type of polyurethane resin compound different from the first type of polyurethane resin compound.Type: ApplicationFiled: October 25, 2007Publication date: March 27, 2008Applicant: San Fang Chemical Industry Co., Ltd.Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu
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Publication number: 20060263601Abstract: There is provided a method for splitting a split type conjugate fiber. The method includes four steps. Firstly, there is provided a first polymer with crystallization of 40% to 95% and a second polymer with crystallization of 1% to 25%. Secondly, a conjugate fiber is made of the first and second polymers by conjugate spinning. Thirdly, the conjugate fiber is submerged in water so that the conjugate fiber contains water. Finally, the conjugate fiber is heated and split into fine fibers.Type: ApplicationFiled: May 11, 2006Publication date: November 23, 2006Applicant: SAN FANG CHEMICAL INDUSTRY CO., LTD.Inventors: Lung-Chuan Wang, Chung-Chih Feng, Kuo-Kuang Cheng, Ta-Min Cheng, Chih-Yi Lin, Kuan-Hsiang Chang, Gao-Long Yang
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Publication number: 20050181190Abstract: A method for making a macromolecular laminate is disclosed. Firstly, polyurethane resin with solid content higher than 50% is mixed with additives in order to form polyurethane resin compound that is liquid at the normal temperature. Then, the polyurethane resin compound is coated on releasing paper and dried. Then, the releasing paper is removed in order to make a substrate. Then, the substrate is put in a physical vapor deposition system in which metal is used as a target. Finally, the metal is sputtered to the substrate in order to form a metallic film, thus making a macromolecular laminate.Type: ApplicationFiled: December 30, 2004Publication date: August 18, 2005Applicant: San Fang Chemical Industry Co., LTDInventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu
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Publication number: 20050170168Abstract: A method for making a macromolecular laminate is disclosed. Firstly, polyurethane resin with solid content higher than 50% is mixed with additives in order to form polyurethane resin compound that is liquid at the normal temperature. Then, the polyurethane resin compound is coated on releasing paper and dried. Then, the releasing paper is removed in order to make a laminate.Type: ApplicationFiled: December 30, 2004Publication date: August 4, 2005Applicant: San Fang Chemical Industry Co., LTD.Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu