Patents by Inventor Yuk Fai Lau

Yuk Fai Lau 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 for producing manganese dry cell negative electrode zinc material
    Patent number: 7874346
    Abstract: A method for manufacturing non lead added anode zinc material for manganese dry batteries comprising compounding a zinc alloy by melting zinc, 0.1 mass % or more and 0.7 mass % or less of bismuth and other impurity elements inevitably contained in zinc in a melting furnace; casting the compounded molten zinc alloy to a molded material in the form of a band or in the form of a bar; rolling the molded material in band form to form a zinc alloy sheet; and punching the rolled zinc alloy sheet in a designated thickness into a designated shape.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: January 25, 2011
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Mutsuhiro Maeda, Kazunari Kobayashi, Yuk Fai Lau
  • Toy domino bridge
    Patent number: D502226
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: February 22, 2005
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Golf training machine
    Patent number: D509275
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: September 6, 2005
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Toy shooting stand
    Patent number: D519165
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: April 18, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D520079
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 2, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D520573
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 9, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D521080
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 16, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D521081
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 16, 2006
    Assignee: Tai Ways (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D521082
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 16, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D521083
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 16, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Domino toy
    Patent number: D522591
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: June 6, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Plastic racket
    Patent number: D260671
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: September 8, 1981
    Assignee: Lau Tak Shing t/a Tai Way Shing Kee Plastic & Metal Manufactory
    Inventor: Yuk Fai Lau
  • Toy bus
    Patent number: D525667
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: July 25, 2006
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Drum
    Patent number: D464078
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: October 8, 2002
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau
  • Toy electronic domino train head
    Patent number: D497189
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: October 12, 2004
    Assignee: Tai Way (Shing Kee) Toys Co. Ltd.
    Inventor: Yuk Fai Lau