Patents by Inventor Jian-Hua Wu

Jian-Hua Wu 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: 8242396
    Abstract: A keypad assembly, comprising: a main body made of metal, the main body defining a plurality of slots and the slots enclosing a plurality of pressing buttons thereon, each pressing button defining at least one symbol slot, the main body having a contact surface and a operating surface; and a light-transmissive filling member, the filling member defining a plurality of protruding strips and the protruding strips enclosing a plurality of button areas thereon, each button area having at least one symbol block protruding therefrom, the filling member bonding to the contact surface with the protruding strips and the symbol blocks respectively engaging in the corresponding slots and the symbol slots. A method for making the present keypad assembly is also described.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: August 14, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Hsu-Tang Chen, Wen-Te Lai, Hsiang-Jung Su, Liang Xiong, Kai-Ming Guo, You-Li Liu, Jian-Hua Wu, Zhao-Long Zheng
  • Publication number: 20100175976
    Abstract: A keypad assembly, comprising: a main body made of metal, the main body defining a plurality of slots and the slots enclosing a plurality of pressing buttons thereon, each pressing button defining at least one symbol slot, the main body having a contact surface and a operating surface; and a light-transmissive filling member, the filling member defining a plurality of protruding strips and the protruding strips enclosing a plurality of button areas thereon, each button area having at least one symbol block protruding therefrom, the filling member bonding to the contact surface with the protruding strips and the symbol blocks respectively engaging in the corresponding slots and the symbol slots. A method for making the present keypad assembly is also described.
    Type: Application
    Filed: December 7, 2009
    Publication date: July 15, 2010
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: HSU-TANG CHEN, WEN-TE LAI, HSIANG-JUNG SU, LIANG XIONG, KAI-MING GUO, YOU-LI LIU, JIAN-HUA WU, ZHAO-LONG ZHENG
  • Patent number: 7259598
    Abstract: The present invention discloses a clock switching circuit, which comprises: a clock generator, receiving two different clock signals; a logic gate, coupled to an enable-signal generator and an output-clock generator, wherein during clock switching, the logic gate turns off output clock according to the signal edges of those two clock signals to avoid the problems of clock glitch and timing insufficiency, and the logic gate will not restore clock output until an appropriate timing occurs.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: August 21, 2007
    Assignee: National Chiao Tung University
    Inventors: Jian-Hua Wu, Wei Hwang
  • Publication number: 20070152719
    Abstract: The present invention discloses a clock switching circuit, which comprises: a clock generator, receiving two different clock signals; a logic gate, coupled to an enable-signal generator and an output-clock generator, wherein during clock switching, the logic gate turns off output clock according to the signal edges of those two clock signals to avoid the problems of clock glitch and timing insufficiency, and the logic gate will not restore clock output until an appropriate timing occurs.
    Type: Application
    Filed: April 19, 2006
    Publication date: July 5, 2007
    Inventors: Jian-Hua Wu, Wei Hwang
  • Patent number: 5967577
    Abstract: A dispenser contains a chamber enclosed by an upper wall and a lower wall, both walls are oriented parallel to each other. The upper wall has a vertically bored inlet port and the lower wall has a plurality of vertically bored outlet ports for providing access to the chamber. The outlet ports are geometrically arranged in an array pattern characterized by equidistantly spaced rows and columns of bores. There is a plurality of baffle plates interposed between the upper wall and the lower wall. The baffle plates, which are spatially separated from each other, are oriented parallel to and spatially separated from the upper and lower walls. The baffle plates have a plurality of vertically bored holes for providing access between the inlet port and the outlet ports, whereby the dispenser is effective in providing homogeneous flow of fluid through the outlet ports.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: October 19, 1999
    Assignee: Institute of Microelectronics
    Inventors: Sarvotham M. Bhandarkar, Kishore Kumar Chakravorty, Tai Chong Chai, Jian Hua Wu
  • Patent number: 5836520
    Abstract: A dispenser contains a chamber enclosed by an upper wall and a lower wall, both walls are oriented parallel to each other. The upper wall has a vertically bored inlet port and the lower wall has a plurality of vertically bored outlet ports for providing access to the chamber. The outlet ports are geometrically arranged in an array pattern characterized by equidistantly spaced rows and columns of bores. There is a plurality of baffle plates interposed between the upper wall and the lower wall. The baffle plates, which are spatially separated from each other, are oriented parallel to and spatially separated from the upper and lower walls. The baffle plates have a plurality of vertically bored holes for providing access between the inlet port and the outlet ports, whereby the dispenser is effective in providing homogeneous flow of fluid through the outlet ports.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: November 17, 1998
    Assignee: Institute of Microelectronics
    Inventors: Sarvotham M. Bhandarkar, Kishore Kumar Chakravorty, Tai Chong Chai, Jian Hua Wu