Patents by Inventor Wu-Song Chuang

Wu-Song Chuang 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: 7728716
    Abstract: A piezoelectric buzzer includes a housing unit, a buzzer unit, and first and second terminals. The housing unit includes first and second housings coupled together. The second housing includes a base plate and a pair of spaced apart insert seats, each of which protrudes inwardly from the base plate toward the first housing and is formed with an insert hole. The buzzer unit is disposed in the resonant chamber and includes a vibrating plate and a piezoelectric plate attached to the vibrating plate. The first and second terminals are inserted respectively into the insert holes of the insert seats, and have a respective connection section extending outwardly of the housing unit, and a respective extending section abutting against a respective one of the vibrating plate and the piezoelectric plate.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 1, 2010
    Assignee: China Steel Corporation
    Inventors: Cheng-Sheng Yu, Huey-Lin Hsieh, Tsai-Kun Huang, Jyh-Jang Wey, Wu-Song Chuang, Chun-Jung Lin
  • Publication number: 20090033473
    Abstract: A piezoelectric buzzer includes a housing unit, a buzzer unit, and first and second terminals. The housing unit includes first and second housings coupled together. The second housing includes a base plate and a pair of spaced apart insert seats, each of which protrudes inwardly from the base plate toward the first housing and is formed with an insert hole. The buzzer unit is disposed in the resonant chamber and includes a vibrating plate and a piezoelectric plate attached to the vibrating plate. The first and second terminals are inserted respectively into the insert holes of the insert seats, and have a respective connection section extending outwardly of the housing unit, and a respective extending section abutting against a respective one of the vibrating plate and the piezoelectric plate.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 5, 2009
    Applicant: CHINA STEEL CORPORATION
    Inventors: Cheng-Sheng Yu, Huey-Lin Hsieh, Tsai-Kun Huang, Jyh-Jang Wey, Wu-Song Chuang, Chun-Jung Lin