Patents by Inventor Hao-Jan Yu

Hao-Jan Yu 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: 12005711
    Abstract: The method of the present disclosure includes steps of: (S1) providing a silicon substrate; (S2) arranging and disposing an active component layer by utilizing a first type photomask on at least two high-precision regions of each of a plurality of inkjet print head chip regions on the silicon substrate; (S3) arranging and disposing a passive component layer by utilizing a second type photomask on the active component layer; and (S4) cutting the silicon substrate according to the inkjet print head chip regions so as to form the plurality of narrow type inkjet print head chips.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: June 11, 2024
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Rong-Ho Yu, Cheng-Ming Chang, Hsien-Chung Tai, Wen-Hsiung Liao, Chi-Feng Huang, Yung-Lung Han
  • Publication number: 20100096642
    Abstract: The present invention relates to a packaging structure for high-power light emitting diode (LED) chip, comprising a metal plate, insulators and a cover plate. The metal plate comprises a containing slot and isolating slots formed on the surface by working, and the insulators can be embedded in the isolating slot. After forming a hollow slot and notches on the surface of the cover plate by working, the cover plate is combined with the metal plate and insulators and at the same time, the hollow slot and the notches are corresponding to the containing slot and the isolating slots on the metal plate to form a hollowness state, followed by application of surface treatment to form soldering portions and an anti-soldering layer at the bottom of the metal plate.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 22, 2010
    Applicant: BRILLIANT TECHNOLOGY CO., LTD.
    Inventors: Chung-Chi Chang, Hao-Jan Yu
  • Publication number: 20100006886
    Abstract: A high power LED (light-emitting diode) chip package carrier structure is disclosed and comprises a circuit board, a metal plate and a lid. The circuit board has a perforate groove for positioning a chip, and an electrode contact area formed at two sides or border of the perforate groove. The metal plate is positioned beneath the circuit board. The lid is positioned above the circuit board, and has a through groove with a width larger than the width of the perforate groove of the circuit board such that the electrode contact area can be exposed out in the through groove of the lid. Thus, the manufacturing process can be simplified and helpful to the mass production.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 14, 2010
    Applicant: BRILLIANT TECHNOLOGY CO., LTD.
    Inventors: Chung-Chi Chang, Hao-Jan Yu