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).

  • Patent number: 11953521
    Abstract: 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: Grant
    Filed: August 10, 2022
    Date of Patent: April 9, 2024
    Assignee: BAO HONG SEMI TECHNOLOGY CO., LTD.
    Inventors: Chao-Cheng Ting, Li-Hong Lu, Huai-Yi Wang, Lung-Chuan Tsai
  • Patent number: 9303342
    Abstract: 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: Grant
    Filed: June 19, 2013
    Date of Patent: April 5, 2016
    Assignee: 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
  • Publication number: 20130280977
    Abstract: 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: Application
    Filed: June 19, 2013
    Publication date: October 24, 2013
    Inventors: LUNG-CHUAN WANG, CHUNG-CHIH FENG, CHIH-YI LIN, SZU-WEI HUANG, KAO-LUNG YANG, JUI- PENG TUNG
  • Publication number: 20120225248
    Abstract: 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: Application
    Filed: February 21, 2012
    Publication date: September 6, 2012
    Applicant: 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
  • Publication number: 20110159235
    Abstract: 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: Application
    Filed: November 17, 2010
    Publication date: June 30, 2011
    Applicant: 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
  • Publication number: 20090098785
    Abstract: 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: Application
    Filed: December 19, 2008
    Publication date: April 16, 2009
    Inventors: Lung-Chuan Wang, Chung-Chih Feng, Kuo-Kuang Cheng, Ta-Min Cheng, Chih-Yi Lin, Kuan-Hsiang Chang, Gao-Long Yang
  • Patent number: 7494697
    Abstract: 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: Grant
    Filed: May 11, 2006
    Date of Patent: February 24, 2009
    Assignee: 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
  • Publication number: 20080095945
    Abstract: 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: Application
    Filed: December 14, 2007
    Publication date: April 24, 2008
    Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu
  • Publication number: 20080075938
    Abstract: 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: Application
    Filed: October 25, 2007
    Publication date: March 27, 2008
    Applicant: San Fang Chemical Industry Co., Ltd.
    Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu
  • Publication number: 20060263601
    Abstract: 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: Application
    Filed: May 11, 2006
    Publication date: November 23, 2006
    Applicant: 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
  • Publication number: 20050181190
    Abstract: 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: Application
    Filed: December 30, 2004
    Publication date: August 18, 2005
    Applicant: San Fang Chemical Industry Co., LTD
    Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu
  • Publication number: 20050170168
    Abstract: 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: Application
    Filed: December 30, 2004
    Publication date: August 4, 2005
    Applicant: San Fang Chemical Industry Co., LTD.
    Inventors: Ching-Tang Wang, Wu-Tsang Tsai, Lung-Chuan Wang, Chung-Chih Feng, Chun-Wei Wu