Patents by Inventor Wen-Hsuan Chang

Wen-Hsuan 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).

  • Publication number: 20210296267
    Abstract: A semiconductor device and method for manufacturing the same are provided. The method includes providing a first substrate. The method also includes forming a first metal layer on the first substrate. The first metal layer includes a first metal material. The method further includes treating a first surface of the first metal layer with a solution including an ion of a second metal material. In addition, the method includes forming a plurality of metal particles including the second metal material on a portion of the first surface of the first metal layer.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 23, 2021
    Applicant: Advanced Semiconductor Engineering, Inc.
    Inventors: Jhao-Cheng CHEN, Huang-Hsien CHANG, Wen-Long LU, Shao Hsuan CHUANG, Ching-Ju CHEN, Tse-Chuan CHOU
  • Patent number: 11100639
    Abstract: The present invention discloses a method for detecting skin conditions, and the method includes the steps of: capturing a skin image from a suspected subject; decomposing the skin image into an RBX image through RBX color-space transformation; and determining skin condition of the subject according to a parameter of a color model of the RBX image.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 24, 2021
    Assignee: H-SKIN AESTHETICS CO., LTD.
    Inventors: Chih-Yu Wang, Po-Han Huang, Shu-Chen Chang, Chia-Chen Lu, Wen-Chien Tsai, Yun-Hsuan Ou Yang
  • Publication number: 20210033597
    Abstract: The present invention relates to systems and methods for reprogramming cells to generate neurons and identifying effective treatments for neurodegenerative disorders using such neurons, as well as systems and methods for treating and developing treatments for one or more neurodegenerative disorders.
    Type: Application
    Filed: December 31, 2019
    Publication date: February 4, 2021
    Inventors: Justin K. Ichida, Hongyan Zhou, Wen-Hsuan Chang, Samuel V. Alworth
  • Patent number: 5413867
    Abstract: A stable aqueous dispersion having a particle size in the range of about 10 to 200 nanometers containing specific silanes carrying at least one hydrophobic moiety and at least one water-solubilizing moiety is used in a process for treating a cellulosic substrate resulting in a treated product. The aqueous dispersions used in treating the cellulosic substrate are stable for at least 20 days without externally added surfactant.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: May 9, 1995
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
  • Patent number: 5354832
    Abstract: A stable aqueous dispersion having a particle size in the range of about 10 to about 200 nanometers containing specific silanes carrying at least one hydrophobic moiety and at least one water-solubilizing moiety is claimed along with the process for treating a cellulosic substrate and the treated cellulosic product resulting therefrom. The aqueous dispersions are stable for at least 20 days without externally added surfactant.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: October 11, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
  • Patent number: 5354881
    Abstract: New organic silanes are claimed carrying at least one water-solubilizing moiety and at least one hydrophobic group suitable for preparing stable solutions or dispersions containing in excess of about five weight percent of such silanes.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: October 11, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, John F. Grunewalder, Mark A. Harley, Edward E. McEntire
  • Patent number: 5162420
    Abstract: Disclosed is an aqueous composition containing a vinyl-type polymer product having hydrolyzable silyl groups which aqueous composition is stable at relatively high solids for such a composition and yet cures at relatively low temperatures upon the evaporation of water. More particularly, disclosed is a stable, aqueous, colloidal silica-free, dispersion or solution containing a solution-polymerized vinyl-type polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of the vinyl-type polymer. The vinyl-type polymer is characterized in that a composition consisting of at least 25 percent by weight of the polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: November 10, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Edward E. McEntire, Marvin L. Kaufman
  • Patent number: 5135992
    Abstract: Disclosed herein are amido-amine silane resins prepared by reacting an aminosilane with a hydroxy alkyl functional amine and a polyisocyanate or a polyacid or its lower alkyl ester.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: August 4, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Edward E. McEntire, J. Alden Erikson
  • Patent number: 5118752
    Abstract: An aqueous polymer emulsion latex is claimed composed of particles comprising a vinyl polymer and a surfactant containing at least one hydrophobic moiety and at least one hydrophilic moiety and also carrying silicon moieties and amido functionalities. Also claimed are coating compositions containing the aqueous polymer emulsion latex, processes for preparing the aqueous polymer emulsion latex wherein ethylenically unsaturated monomers are polymerized in the presence of a surfactant containing a silicon moiety and amido functionality, and substrates carrying a coating composition containing the aqueous polymer emulsion latex.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: June 2, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Marvin L. Kaufman, Edward E. McEntire, James C. Su, Anbazhagan Natesh
  • Patent number: 4988778
    Abstract: Disclosed herein are organosilane resins which are derived from an aminoalkoxysilane and hydroxy- and amine-functional compound; said resins are useful in curable compositions containing epoxy materials.
    Type: Grant
    Filed: January 18, 1990
    Date of Patent: January 29, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, J. Alden Erikson
  • Patent number: 4923757
    Abstract: An abrasion and solvent resistant polyurethane protective coating for bilayer windshields is formulated by the reaction of a polyester or polyether diol with an aliphatic isocyanate-terminated prepolymer.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: May 8, 1990
    Assignee: PPG Industries, Inc.
    Inventors: James B. O'Dwyer, Wen-Hsuan Chang, Roger L. Scriven, Joseph Cherenko
  • Patent number: 4824926
    Abstract: An abrasion and solvent resistant polyurethane protective coating for bilayer windshields is formulated by the reaction of a polyester or polyether diol with an aliphatic isocyanate-terminated prepolymer.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: April 25, 1989
    Assignee: PPG Industries, Inc.
    Inventors: James B. O'Dwyer, Wen-Hsuan Chang, Roger L. Scriven, Joseph Cherenko
  • Patent number: 4732929
    Abstract: Disclosed are essentially zinc-free, organic coating compositions based on silicon-containing polyols comprising reaction products of hydrophobic polyols, organosilicon-containing materials, and higher monohydric alcohols, R-OH. The organosilicon-containing material comprises an organosilicon-containing substance free of certain functional groups attached directly to carbon and essentially free of alkali metal ions. The organosilicon-containing substance has atoms bonded directly to Si all of which are selected from O, N, and/or Cl. The organosilicon-containing substance also has moieties directly bonded to Si which are displaceable by reaction with water and/or alcohol. The reaction product is not capable of being gelled when subjected to a specific gel test, has a content of hydroxyl groups from the hydrophobic polyol ranging from 0.4 to 10 milliequivalents per gram of reaction product, has a content of groups, --OR, from the higher monofunctional alcohol ranging from 0.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: March 22, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, David T. McKeough, John R. Peffer
  • Patent number: 4696959
    Abstract: A composition of matter contains as a principal component a material which acts as an ultraviolet light stabilizer. The ultraviolet light stabilizer is formed from the reaction of (a) a methylol or alkoxy alkyl-containing material, and (b) an alkyl substituted piperidine containing material which is represented by the following structural formula: ##STR1## R" is hydrogen or C.sub.1 to C.sub.6 alkyl, R.sub.10 is hydrogen or methyl,Y is a radical derived from a material selected from the group consisting of amino substituted triazines, ureas, glycolurils, phenols, and amides of the formula ##STR2## R' is hydrogen or C.sub.1 to C.sub.12 alkyl and R is an aliphatic, cycloaliphatic, or olefinic radical, or an acrylic polymer moiety having at least one group selected from hydroxyl, carboxyl, amido, and ureido, said reaction proceeding between a methylol or alkoxy alkyl group of (a) and the group selected from hydroxyl, carboxyl, amido and ureido of (b).
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: September 29, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Michael M. Chau, Robert Piccirilli
  • Patent number: 4684697
    Abstract: Disclosed are moisture-curable compositions based on (A) ungelled, partial hydrolyzates or organosilicon-containing materials in combination with (B) acrylic addition interpolymers containing hydrolyzable silyl groups.The organosilicon-containing material for preparation of the ungelled partial hydrolysis product has an average functionality based on easily hydrolyzable Y groups attached to silicon atoms of greater than or equal to 2.4 and contains greater than or equal to 10 mole percent of at least one organosilane compound corresponding to the formula R-Si-Y.sub.3. The partial hydrolysis product is prepared using a controlled amount of water.The acrylic addition interpolymer is not particularly limited provided that it contains at least one silicon atom directly bonded to a hydrolyzable group and is compatible with the ungelled partial hydrolysis product.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: August 4, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, William P. Blackburn, Paul J. Prucnal, Edward L. Dufford
  • Patent number: 4678835
    Abstract: A coating composition contains at least 15 percent by weight of an ungelled reaction product of:(i) at least 2 percent by weight of an amine having in a molecule thereof at least one amino hydrogen atom, and at least one silicon atom directly bonded to a hydrolyzable group;(ii) at least 4 percent by weight of a material containing at least one epoxide group, at least 30 percent of said material being essentially free of hydroxyl groups; and(iii) a material selected from vinyl alkoxysilanes; nonfunctional organosilanes; organosilicates; and partial hydrolysis products thereof; the percentages by weight being based on the total weight of the resin solids of the coating composition including (i), (ii) and (iii).
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: July 7, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Edward L. Dufford, J. Alden Erikson, Paul J. Prucnal
  • Patent number: 4652605
    Abstract: A polymeric reaction product, a process for its preparation and a coating composition containing the reaction product as a binder are described. The polymeric reaction product is prepared by the vinyl addition polymerization of a vinyl monomer component of which at least 50 percent by weight is an active hydrogen-containing vinyl monomer in the presence of a polymeric diluent. The rate of polymerization is controlled such that the amount of unreacted vinyl monomer, on the average, does not exceed 10 percent by weight of the total weight of the reaction mixture.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: March 24, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Michael M. Chau, J. Alden Erikson, Robert J. Lipinski, David T. McKeough, Richard M. Nugent, Jr.
  • Patent number: 4628076
    Abstract: Disclosed is an ungelled resin comprising a compound corresponding to a specified formula (I) which compound typically is prepared by reaction of an aminoalkyloxy silane with an organic isocyanate. The ungelled resin contains a hydrolyzable group that is attached directly to Silicon. The ungelled resin can be utilized in coating compositions. The ungelled resin can be cured with moisture and/or with polyols, and can be used to provide protective and/or decorative films on a variety of substrates.The novel compounds contained in the ungelled resin for convenience can be thought of as prepared from an organic isocyanate having an average functionality of at least 1; a silicon-containing compound corresponding to a specified formula (III) infra, the silicon-containing compound having at least one hydrolyzable group; and a compound containing at least 2 carbon atoms, at least 1 functional group reactive with a moiety on the silicon-containing compound and at least one amino group.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: December 9, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, David T. McKeough
  • Patent number: 4623697
    Abstract: Disclosed is an ungelled resin composition comprising a compound having at least one group containing a silicon atom selected from: ##STR1## wherein Q represents the residue from an organic polyol selected from the group consisting of (1) simple diols, triols and higher hydric alcohols, (2) polyester polyols, (3) polyether polyols, (4) amide-containing polyols, (5) epoxy polyols and (6) polyhydric polyvinyl alcohols, and eachR independently is selected from the group of moieties consisting of hydrogen, and a C.sub.1 -C.sub.10 group joined to Si through an Si-C linkage, andY represents an easily hydrolyzable group.The ungelled resin composition contains an amount of easily hydrolyzable Y moieties directly bonded to silicon atoms such that the ratio of the number of grams of the ungelled resin composition to equivalents of easily hydrolyzable Y moieties in the ungelled resin composition is in a range of from 40 to 667.
    Type: Grant
    Filed: April 30, 1985
    Date of Patent: November 18, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, David T. McKeough
  • Patent number: 4613451
    Abstract: Disclosed is a liquid composition comprising a mixture of (A) a hydrophobic polyol, and (B) an organosilicon-containing material. The organosilicon-containing material is substantially free of unhydrolyzed aminoalkylsilane and comprises an organosilicon-containing substance free of functional groups attached to carbon and essentially free of alkali metal ions. The organosilicon-containing substance has atoms bonded directly to silicon all of which are selected from O, N, and/or Cl. The silicon-containing substance additionally has moieties directly bonded to Si which are displaceable by reaction with water and/or alcohol. At least a part of the silicon-containing substance is hydrolyzed to a compound or a mixture of compounds which contains a residual amount of the moieties directly bonded to Si which are displaceable by reaction with water and/or alcohol.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: September 23, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, David T. McKeough