Patents by Inventor Chun-Hui Liu

Chun-Hui Liu 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: 20230190427
    Abstract: The present invention relates to an apparatus and method for three-dimensionally laminating a ceramic denture in a color-and-transmittance variable manner. A base slurry and a light transmissive slurry are mixed at a ratio regulated by a main controller according to a slurry ratio parameter datum, and then a slurry mixture is laid on a substrate by a laying module to form a slurry layer; next, the slurry layer is photocured by a photocuring module according to a laminated graphic under control of the main controller; in such a manner, the slurry layers are laminated and cured one by one so that a denture green body is formed; finally, the denture green body is sintered at a high temperature to form a ceramic denture. The present invention allows each slurry layer to exhibit different color and transmittance, resulting in quite natural gradation of color and gradation of transmittance.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Inventors: Feng-Ming YEN, Chun-Jung YEN, Yuh Che TANG, Nai-Hui LIU
  • Patent number: 11676898
    Abstract: A method includes forming an insulating layer over a conductive feature; etching the insulating layer to expose a first surface of the conductive feature; covering the first surface of the conductive feature with a sacrificial material, wherein the sidewalls of the insulating layer are free of the sacrificial material; covering the sidewalls of the insulating layer with a barrier material, wherein the first surface of the conductive feature is free of the barrier material, wherein the barrier material includes tantalum nitride (TaN) doped with a transition metal; removing the sacrificial material; and covering the barrier material and the first surface of the conductive feature with a conductive material.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: June 13, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Pang Kuo, Huan-Yu Shih, Wen-Hsuan Chen, Cheng-Lun Tsai, Ya-Lien Lee, Cheng-Hui Weng, Chun-Chieh Lin, Hung-Wen Su, Yao-Min Liu
  • Patent number: 7390405
    Abstract: A magnetic device adapted for various engine oil filtering apparatuses is proposed in the present invention. It includes an elastic metal plate; multiple holding bases, each of which has at least a containing portion, the holding bases being disposed on the elastic metal plate; and multiple magnets disposed in the containing portions of the holding bases respectively. The magnetic device has a sectional design and has various flexible combinations. Hence, it is more applicable and reduces the costs of production.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: June 24, 2008
    Inventor: Chun-Hui Liu
  • Publication number: 20060266688
    Abstract: A magnetic device adapted for various engine oil filtering apparatuses is proposed in the present invention. It includes an elastic metal plate; multiple holding bases, each of which has at least a containing portion, the holding bases being disposed on the elastic metal plate; and multiple magnets disposed in the containing portions of the holding bases respectively. The magnetic device has a sectional design and has various flexible combinations. Hence, it is more applicable and reduces the costs of production.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Inventor: Chun-Hui Liu