Patents by Inventor Han-Chang Wu

Han-Chang Wu 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: 12104316
    Abstract: A manufacturing method for an antibacterial fiber includes the following steps. A dipping step is performed to soak a conductive fiber in a solution, in which the solution includes an ionic compound, and the ionic compound includes a metal cation. An oxidation step is performed by using the conductive fiber as an anode, such that an antibacterial material produced by the solution is adhered to a surface of the conductive fiber, in which the antibacterial material includes a metal oxide.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: October 1, 2024
    Assignee: FORMOSA PLASTICS CORPORATION
    Inventors: Chih-Hsiang Liang, Yu-Cheng Hsu, Tang-Chun Kao, Chien-Hsu Chou, Yi-Chuan Chang, Chih-Hsuan Ou, Han-Chang Wu, Long-Tyan Hwang
  • Patent number: 12048916
    Abstract: The present invention relates to carbon fiber composites and a method for producing the same. By reducing specific transition metal ions with a specific concentration, the method for producing the carbon fiber composites can form nanoparticles of a transition metal on an outer surface of a titanium dioxide layer encapsulating a carbon fiber to produce the carbon fiber composites. The nanoparticles of the transition metal directionally contact the titanium dioxide layer, so that the carbon fiber composites have synergistically photocatalytic activity.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: July 30, 2024
    Assignee: FORMOSA PLASTICS CORPORATION
    Inventors: Yu-Cheng Hsu, Tang-Chun Kao, Long-Tyan Hwang, Chih-Hsiang Liang, Chien-Hsu Chou, Yi-Chuan Chang, Chih-Hsuan Ou, Han-Chang Wu
  • Publication number: 20230069437
    Abstract: The present disclosure provides an impregnation device for a fiber prepreg, which includes a film layer separation assembly, a hot pressing element, and a thermal barrier element. The hot pressing element is disposed beneath the film layer separation assembly. The thermal barrier element is disposed between the film layer separation assembly and the hot pressing element. The present disclosure also provides an impregnation method for a fiber prepreg.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 2, 2023
    Inventors: Han-Chang WU, Chih-Hsuan OU, Chieh-Shun YANG, Long-Tyan HWANG
  • Publication number: 20230053279
    Abstract: A method of manufacturing resin composition includes following operations. A nano-particle filler, a micro-inorganic particle, and a resin are stirred and mixed to form a mixture. The mixture is centrifuged at a high speed to form an upper layer mixing liquid and a lower layer mixing liquid. The upper layer mixing liquid is taken out and obtains the resin composition.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 16, 2023
    Inventors: Tang-Chun KAO, Yu-Cheng HSU, Kai-Cheng YEN, Chien-Hsu CHOU, Chih-Hsuan OU, Han-Chang WU, Long-Tyan HWANG
  • Publication number: 20230044426
    Abstract: The present invention relates to carbon fiber composites and a method for producing the same. By reducing specific transition metal ions with a specific concentration, the method for producing the carbon fiber composites can form nanoparticles of a transition metal on an outer surface of a titanium dioxide layer encapsulating a carbon fiber to produce the carbon fiber composites. The nanoparticles of the transition metal directionally contact the titanium dioxide layer, so that the carbon fiber composites have synergistically photocatalytic activity.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 9, 2023
    Inventors: Yu-Cheng HSU, Tang-Chun KAO, Long-Tyan HWANG, Chih-Hsiang LIANG, Chien-Hsu CHOU, Yi-Chuan CHANG, Chih-Hsuan OU, Han-Chang WU
  • Publication number: 20220411992
    Abstract: A manufacturing method for an antibacterial fiber includes the following steps. A dipping step is performed to soak a conductive fiber in a solution, in which the solution includes an ionic compound, and the ionic compound includes a metal cation. An oxidation step is performed by using the conductive fiber as an anode, such that an antibacterial material produced by the solution is adhered to a surface of the conductive fiber, in which the antibacterial material includes a metal oxide.
    Type: Application
    Filed: June 29, 2022
    Publication date: December 29, 2022
    Applicant: FORMOSA PLASTICS CORPORATRION
    Inventors: Chih-Hsiang LIANG, Yu-Cheng HSU, Tang-Chun KAO, Chien-Hsu CHOU, Yi-Chuan CHANG, Chih-Hsuan OU, Han-Chang WU, Long-Tyan HWANG
  • Patent number: 6016707
    Abstract: A pressure variation monitoring device adapted to measure pressure variation of an object is disclosed. The monitoring device includes an abutting device adapted to detect the pressure variation of the object to be detected to generate a displacement in response to the pressure variation; a magnet supported on the abutting device to be movable therewith in response to the pressure variation; a coil co-axially surrounding the magnet and allowing the magnet to be movable relative thereto; an oscillation circuit, coupled to the coil to generate an oscillation signal; a signal processing unit for receiving and processing the oscillation signal to provide an output signal; and a display for providing a reading of the pressure variation.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: January 25, 2000
    Inventors: Chih-Lung Lin, Han-Chang Wu, Shuenn-Tsong Young, Te-Son Kuo