Patents by Inventor Kuo-Chang Chang

Kuo-Chang Chang 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: 11990557
    Abstract: There is provided an optical sensor package including a substrate, a base layer, an optical detection region, a light source and a light blocking wall. The base layer is arranged on the substrate. The light detection region and the light source are arranged on the base layer. The light blocking wall is arranged on the base layer, and located between the light detection region and the light source to block light directly propagating from the light source to the light detection region.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: May 21, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Chi-Chih Shen, Kuo-Hsiung Li, Shang-Feng Hsieh, Jui-Cheng Chuang, Yi-Chang Chang
  • Publication number: 20230136631
    Abstract: A semiconductor package includes a first die, a second die, and a hybrid-type adhesive. The second die is stacked on the first die through the hybrid-type adhesive. The hybrid-type adhesive includes a conductive adhesive and a non-conductive adhesive. The conductive adhesive is disposed between the non-conductive adhesive and the first die. The non-conductive adhesive is disposed between the conductive adhesive and the second die.
    Type: Application
    Filed: June 29, 2022
    Publication date: May 4, 2023
    Applicant: Airoha Technology Corp.
    Inventors: Ying-Chih Chen, Min-Yu Lin, Kuo-Chang Chang, Jen-Chan Huang
  • Patent number: 8312641
    Abstract: The present invention is related to an UV LED curing apparatus, and more particularly, to a portable UV LED curing apparatus with improved illumination and timer control to solidify a UV hardening gel, such as acrylic gel. The present invention provides an UV LED curing apparatus comprising a housing and an UV LED lighting assembly enclosed in the housing. The housing is provided with a light aperture allowing UV light shone from an UV LED light source on the UV LED lighting assembly and controlled by a timer and a current regulator integrated thereon. The UV LED lighting assembly is further provided with an optical element to direct and confine UV light shine toward the light aperture of the housing, capable of providing a focused illumination and preventing leakage of UV light outside of the housing.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: November 20, 2012
    Assignee: Cosmex Co., Ltd.
    Inventors: Yu-Jen Li, Kuo-Chang Chang, Fu-Ju Sheu, Szu-Hua Wu
  • Publication number: 20110252661
    Abstract: The present invention is related to an UV LED curing apparatus, and more particularly, to a portable UV LED curing apparatus with improved illumination and timer control to solidify a UV hardening gel, such as acrylic gel. The present invention provides an UV LED curing apparatus comprising a housing and an UV LED lighting assembly enclosed in the housing. The housing is provided with a light aperture allowing UV light shone from an UV LED light source on the UV LED lighting assembly and controlled by a timer and a current regulator integrated thereon. The UV LED lighting assembly is further provided with an optical element to direct and confine UV light shine toward the light aperture of the housing, capable of providing a focused illumination and preventing leakage of UV light outside of the housing.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 20, 2011
    Applicant: COSMEX CO., LTD
    Inventors: Yu-Jen Li, Kuo-Chang Chang, Fu-Ju Sheu, Szu-Hua Wu
  • Patent number: D637352
    Type: Grant
    Filed: May 8, 2010
    Date of Patent: May 3, 2011
    Assignee: Cosmex Co., Ltd.
    Inventors: Yu-Jen Li, Kuo-Chang Chang, Fu-Ju Sheu, Szu-Hua Wu, Pei-Chen Yang, Ya-Wen Wu