Patents by Inventor Chih-Hung Chu

Chih-Hung Chu 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: 20240377557
    Abstract: An optical element with a lanthanide compound layer in accordance with the present invention comprises: an optical substrate including a first surface; the lanthanide compound layer made of lanthanide compound and being disposed on the first surface, and the lanthanide compound layer including a second surface; and an optical film stack disposed on the second surface. With the design of the lanthanide compound layer, the optical element has a blocking effect. Therefore, during the cleaning process of the optical element, a large number of particles can be removed, while effectively suppressing the expansion and generation of pinhole defects, and maintaining the original performance of the optical element.
    Type: Application
    Filed: June 14, 2023
    Publication date: November 14, 2024
    Inventors: Sen-Tsung HSIAO, Chih-Hung CHU, Wei-Li WAN, Shi-Chun ZHOU, Chia-Sheng TSAI
  • Patent number: 11858850
    Abstract: A high-strength zirconia-alumina composite ceramic substrate suitable for semiconductor devices has been invented. It is manufactured by a procedure starting with mixing powder formula of alumina, zirconia, and a self-made synthetic additive for ball milling in an organic solvent at room temperature. The resulting mixture is homogenously dispersed and is then subjected to the steps of slurry preparation, degassing, green embryo forming, punching, calculation, and sintering to yield the final composite ceramic substrate with an excellent mechanical property of three-point bending strength>600 MPa and superior thermoelectric properties of thermal conductivity>26 W/mK, insulation resistance>1014 ?·cm and surface leakage current (150° C.)<200 nA.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: January 2, 2024
    Assignee: LEATEC FINE CERAMICS CO., LTD.
    Inventors: Chih-Hung Chu, Jui-Kai Wang
  • Publication number: 20220017422
    Abstract: A high-strength zirconia-alumina composite ceramic substrate suitable for semiconductor devices has been invented. It is manufactured by a procedure starting with mixing powder formula of alumina, zirconia, and a self-made synthetic additive for ball milling in an organic solvent at room temperature. The resulting mixture is homogenously dispersed and is then subjected to the steps of slurry preparation, degassing, green embryo forming, punching, calculation, and sintering to yield the final composite ceramic substrate with an excellent mechanical property of three-point bending strength>600 MPa and superior thermoelectric properties of thermal conductivity>26 W/mK, insulation resistance>1014 ?·cm and surface leakage current (150° C.)<200 nA.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 20, 2022
    Inventors: Chih-Hung CHU, Jui-Kai WANG
  • Publication number: 20110068249
    Abstract: A mold includes a substrate and a plurality of micro-structures. The micro-structures are disposed on the substrate. Each of the micro-structures includes a supporting layer and a convex top portion. The supporting layer is disposed on the substrate, wherein the material of the supporting layer is amorphous metal. The convex top portion is disposed on the supporting layer, wherein the material of the convex top portion is a thermoplastic polymer.
    Type: Application
    Filed: November 29, 2010
    Publication date: March 24, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Kun-Chih Pan, Chao-Hung Tseng, Chih-Hung CHU, Chia-Hsu Tu, Jen-Shun Lin
  • Publication number: 20100124605
    Abstract: A mold includes a substrate and a plurality of micro-structures. The micro-structures are disposed on the substrate. Each of the micro-structures includes a supporting layer and a convex top portion. The supporting layer is disposed on the substrate, wherein the material of the supporting layer is amorphous metal. The convex top portion is disposed on the supporting layer, wherein the material of the convex top portion is a thermoplastic polymer.
    Type: Application
    Filed: October 12, 2009
    Publication date: May 20, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Kun-Chih Pan, Chao-Hung Tseng, Chih-Hung Chu, Chia-Hsu Tu, Jen-Shun Lin