Patents by Inventor Chwan-Hwa Chiang

Chwan-Hwa Chiang 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: 20120227230
    Abstract: A composite part separating device for separating a composite product consisting of a plastic part and a metal part is provided. The composite part separating device includes a base; a workpiece support mounted on the base. The metal part of the composite product is hung on the workpiece support to retain the composite product on the workpiece support; a vibrating motor drives the base and the workpiece support to shake, causing the plastic part to separate from the metal part.
    Type: Application
    Filed: June 27, 2011
    Publication date: September 13, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHWAN-HWA CHIANG, YI-JUN HUANG
  • Publication number: 20120229752
    Abstract: A display screen includes a substrate comprising a first surface and a second surface opposite to the first surface; a beam-splitting polarizer formed on a first surface of the substrate; and a non-conductive metal layer formed on a second surface of the substrate. The beam-splitting polarizer is a cholesterol liquid crystalline polarization layer.
    Type: Application
    Filed: June 27, 2011
    Publication date: September 13, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: QI-JIAN DU, CHWAN-HWA CHIANG
  • Publication number: 20120225286
    Abstract: A device housing includes a substrate, a metallic coating formed on the substrate by vacuum sputtering or vacuum vapor deposition, and a self-repairing coating formed on the metallic coating. The self-repairing coating substantially includes trimethylene oxide and polyhydric alcohols.
    Type: Application
    Filed: August 10, 2011
    Publication date: September 6, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: QI-JIAN DU, CHWAN-HWA CHIANG
  • Patent number: 8257808
    Abstract: An electronic device housing includes a substrate and a metallic coating formed on the substrate. The substrate has a surface roughness of less than 60 nm. The metallic coating includes a plurality of first layers and a plurality of second layers. Each one of the first layers and each one of the second layers are alternately deposited on each other. The first layer and the second layer may be respectively tantalum pentoxide layer and silicon dioxide layer or may be respectively niobium pentoxide layer and zirconium dioxide layer.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 4, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Chwan-Hwa Chiang, Qi-Jian Du
  • Publication number: 20120189842
    Abstract: An electronic device includes a substrate, a metallic coating formed on the substrate by vacuum sputtering or vacuum vapor deposition and a top paint coating formed on the metallic coating. The metallic coating comprising a plurality of titanium oxide layers interleaved with an equal number of silicon oxide layers and has a reflectively of about 50%-80%. The top paint coating includes pearl pigments.
    Type: Application
    Filed: August 10, 2011
    Publication date: July 26, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: QI-JIAN DU, CHWAN-HWA CHIANG
  • Publication number: 20120171512
    Abstract: A process for treating the surface of magnesium alloy comprises providing a substrate made of magnesium alloy. A chromium layer is then formed on the substrate by magnetron sputtering and a titanium layer is formed on the substrate by magnetron sputtering. A protective layer is formed on the titanium layer. The protective layer is an epoxy resin coating.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 5, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: CHWAN-HWA CHIANG, ZHI-QIANG LI
  • Publication number: 20120040136
    Abstract: A ceramic coating comprised of alumina or zirconia. The ceramic coating defines a plurality of recesses on surface, giving a leather-like appearance thereon. The ceramic coating is formed by ion beam assisted evaporation.
    Type: Application
    Filed: June 13, 2011
    Publication date: February 16, 2012
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: QI-JIAN DU, CHWAN-HWA CHIANG
  • Patent number: 8097344
    Abstract: An electronic device housing is provided. The electronic device housing includes a substrate, a metallic coating formed on the substrate, and a top paint coating formed on the metallic coating. The top paint coating contains nano-titanium dioxide powder. The top paint coating has a self-cleaning property. It can oxygenize and clean off dust and sweat accumulated on the surface of the electronic device housing.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: January 17, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH(Hong Kong) Limited
    Inventors: Chwan-Hwa Chiang, Qi-Jian Du
  • Patent number: 8088497
    Abstract: A method for making a housing comprises of providing a metal substrate; forming a base paint coating on the substrate; vacuum depositing a first metal coating on the base paint coating, the first metal coating being a chromium coating or a stainless steel coating; vacuum depositing a second metal coating on the first metal coating, the second metal coating being a commix metal coating containing chromium and stainless steel; and vacuum depositing a third metal coating on the second metal coating, the third metal coating being a stainless steel coating. A housing made by the above mentioned method is also described there.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: January 3, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Zong-Hua Hu, Hai-Bo Pan, Xu Li, Yi-Jun Huang, Chwan-Hwa Chiang, Feng-Yuen Dai
  • Publication number: 20110305832
    Abstract: A surface treating method for making a housing have a metallic main body includes the follow steps. A primer is coated on the metallic main body to form a bottom layer. A plating layer is formed on the bottom layer. An adhesive is coated on the plating layer to form an adhesive layer. Finally, a lacquer is coated on the adhesive layer to form an outer layer.
    Type: Application
    Filed: August 23, 2011
    Publication date: December 15, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHWAN-HWA CHIANG
  • Patent number: 8076011
    Abstract: An electronic device housing is provided. The electronic device housing comprises a substrate, a base paint coating formed on the substrate, and a metallic coating formed on the base paint coating. The metallic coating comprises a plurality of first layers interleaved with a plurality of second layers, and a third layer provided outermost. The first layer and the second layer are respectively a zirconium dioxide layer and an aluminum oxide layer, or are respectively composite component layer of niobium pentoxide and zirconium dioxide, and silicon dioxide layer. The third layer is a magnesium fluoride layer.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 13, 2011
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Chwan-Hwa Chiang, Qi-Jian Du
  • Publication number: 20110256361
    Abstract: An electronic device housing is provided. The electronic device housing includes a substrate, a first metallic coating formed on the substrate, and a second metallic coating formed on a portion of the first metallic coating. The first and second metallic coatings are formed by vacuum sputtering or vacuum vapor deposition. The first and second metallic coatings are all non-conductive. A method for making the electronic device housing is also described there.
    Type: Application
    Filed: November 19, 2010
    Publication date: October 20, 2011
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: QI-JIAN DU, CHWAN-HWA CHIANG
  • Publication number: 20110236576
    Abstract: A surface treating method for making a housing have a metallic glass main body comprising: coating a primer on the metallic glass main body to form a bottom layer; forming a plating layer on the bottom layer; coating an adhesive on the plating layer to form an adhesive layer; and coating a lacquer on the adhesive layer to form an outer layer.
    Type: Application
    Filed: June 7, 2011
    Publication date: September 29, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHWAN-HWA CHIANG
  • Patent number: 8021729
    Abstract: An exemplary housing includes a metallic main body; and two coatings formed on the metallic main body. The coatings include an adhesive layer on the metallic main body, and an outer layer formed on the adhesive layer. Surface treating methods for making present housing are also provided.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: September 20, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chwan-Hwa Chiang
  • Patent number: 7993712
    Abstract: An exemplary housing includes a metallic glass main body; and two coatings formed on the metallic glass main body. The coatings include an adhesive layer on the metallic glass main body, and an outer layer formed on the adhesive layer. Surface treating methods for making present housing are also provided.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: August 9, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Chwan-Hwa Chiang
  • Publication number: 20110159277
    Abstract: An electronic device housing is provided. The electronic device housing comprises a substrate, a base paint coating formed on the substrate, and a metallic coating formed on the base paint coating. The metallic coating comprises a plurality of first layers interleaved with a plurality of second layers, and a third layer provided outermost. The first layer and the second layer are respectively a zirconium dioxide layer and an aluminum oxide layer, or are respectively composite component layer of niobium pentoxide and zirconium dioxide, and silicon dioxide layer. The third layer is a magnesium fluoride layer.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 30, 2011
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: CHWAN-HWA CHIANG, QI-JIAN DU
  • Publication number: 20110159258
    Abstract: An electronic device housing includes a substrate and a nano titanium dioxide coating formed on the substrate is provided. The nano titanium dioxide coating has a thickness of about 10-100 nm. The nano titanium dioxide coating is formed of rutile crystals or composite crystals formed of rutile and anatase. A method for making the electronic device is also described there.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 30, 2011
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: CHWAN-HWA CHIANG, QI-JIAN DU
  • Publication number: 20110159275
    Abstract: An electronic device housing is provided. The electronic device housing includes a substrate, a metallic coating formed on the substrate, and a top paint coating formed on the metallic coating. The top paint coating contains nano-titanium dioxide powder. The top paint coating has a self-cleaning property. It can oxygenize and clean off dust and sweat accumulated on the surface of the electronic device housing.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 30, 2011
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: CHWAN-HWA CHIANG, QI-JIAN DU
  • Publication number: 20110155409
    Abstract: An electronic device housing is provided. The electronic device housing includes a substrate, a metallic-appearing coating formed on the substrate, and a top coating formed on the metallic-appearing coating. The top coating contains nano-titanium dioxide powder and fluorocarbon resin. The electronic device housing has self-cleaning and anti-fingerprint properties.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 30, 2011
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: QI-JIAN DU, CHWAN-HWA CHIANG
  • Publication number: 20110151120
    Abstract: A surface treating method for making a housing having a main body includes forming a plating layer on the main body, coating an adhesive on the plating layer to form an adhesive layer, and coating a lacquer on the adhesive layer to form an outer layer. The adhesive comprises polyolefin chloride.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 23, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHWAN-HWA CHIANG