Patents by Inventor PENG-HSIANG CHEN

PENG-HSIANG CHEN 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).

  • Method of manufacturing a light-emitting device
    Patent number: 11961939
    Abstract: A method of manufacturing a light-emitting device, including: providing a substrate structure including a top surface; forming a precursor layer on the top surface; removing a portion of the precursor layer and a portion of the substrate from the top surface to form a base portion and a plurality of protrusions regularly arranged on the base portion; forming a buffer layer on the base portion and the plurality protrusions; and forming a III-V compound cap layer on the buffer layer; wherein one of the plurality of protrusions comprises a first portion and a second portion formed on the first portion; wherein the first portion is integrated with the base portion and has a first material which is the same as that of the base portion; and wherein the buffer layer contacts side surfaces of the plurality of protrusions and a surface of the base portion.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: April 16, 2024
    Assignee: EPISTAR CORPORATION
    Inventors: Peng Ren Chen, Yu-Shan Chiu, Wen-Hsiang Lin, Shih-Wei Wang, Chen Ou
  • Manufacturing method of 3-dimensional plastic impeller of centrifugal pump and the impeller
    Patent number: 11739642
    Abstract: The disclosed embodiment is related to a manufacturing method of a die-formed 3-dimensional plastic impeller of a centrifugal pump and the impeller manufactured thereby, including a mold for twisted blade and a mold for impeller outlet, the mold for twisted blade is configured to form a twisted blade portion of each blade of the impeller, the mold for impeller outlet is configured to form a rear portion of each blade, a hub rim part of the impeller, and a shroud rim part of the impeller so that the hub rim part, the shroud rim part, and the blades are formed in a single piece at the same molding process.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: August 29, 2023
    Assignee: ASSOMA INC.
    Inventors: Chih-Hsien Shih, Chih-Kuan Shih, Huan-Jan Chien, Shu-Yen Chien, Chin-Cheng Wang, Yuan Hung Lin, Peng-Hsiang Chen
  • MANUFACTURING METHOD OF 3-DIMENSIONAL PLASTIC IMPELLER OF CENTRIFUGAL PUMP AND THE IMPELLER
    Publication number: 20220213897
    Abstract: The disclosed embodiment is related to a manufacturing method of a die-formed 3-dimensional plastic impeller of a centrifugal pump and the impeller manufactured thereby, including a mold for twisted blade and a mold for impeller outlet, the mold for twisted blade is configured to form a twisted blade portion of each blade of the impeller, the mold for impeller outlet is configured to form a rear portion of each blade, a hub rim part of the impeller, and a shroud rim part of the impeller so that the hub rim part, the shroud rim part, and the blades are formed in a single piece at the same molding process.
    Type: Application
    Filed: September 25, 2019
    Publication date: July 7, 2022
    Inventors: Chih-Hsien SHIH, Chih-Kuan SHIH, Huan-Jan CHIEN, Shu-Yen CHIEN, Chin-Cheng WANG, Yuan Hung Lin, PENG-HSIANG CHEN