Patents by Inventor Raico Huen

Raico Huen 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).

  • Power-driven toothbrush
    Patent number: 6691363
    Abstract: A power-driven toothbrush comprising a brush head 1 mounted on a brush handle 2 for vibratory movement relative thereto, a vibration transmitting arm 33 extending between said handle 2 and said head 1 and a vibration actuator 3 located within the handle 2, said vibration transmitting arm 33 including a magnet 34 located within said handle 2 and the actuator 2 including a solenoid 32 adjacent said magnet 34 and means for supplying AC current to the solenoid 32 a frequency which is the same as the resonant frequency of the vibration transmitting arm 33. The means for supplying AC current to said solenoid includes a printed circuit board 31. The frequency of the AC current delivered to the solenoid and the natural frequency of the vibration transmitting arm are in the range of 100-300 Hz.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: February 17, 2004
    Assignee: Oasis Global Limited
    Inventor: Raico Huen
  • Power-driven toothbrush
    Publication number: 20020100129
    Abstract: A power-driven toothbrush comprising a brush head 1 mounted on a brush handle 2 for vibratory movement relative thereto, a vibration transmitting arm 33 extending between said handle 2 and said head 1 and a vibration actuator 3 located within the handle 2, said vibration transmitting arm 33 including a magnet 34 located within said handle 2 and the actuator 2 including a solenoid 32 adjacent said magnet 34 and means for supplying AC current to the solenoid 32 a frequency which is the same as the resonant frequency of the vibration transmitting arm 33. The means for supplying AC current to said solenoid includes a printed circuit board 31. The frequency of the AC current delivered to the solenoid and the natural frequency of the vibration transmitting arm are in the range of 100-300 Hz.
    Type: Application
    Filed: October 26, 2001
    Publication date: August 1, 2002
    Inventor: Raico Huen
  • Paper shredder
    Patent number: D388819
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: January 6, 1998
    Assignee: Fairform Manufacturing Company Limited
    Inventor: Hing Wah Raico Huen
  • Hand-held pulsating shower head
    Patent number: D392718
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 24, 1998
    Assignee: Oasis Global Limited
    Inventor: Hing Wah Raico Huen
  • Hand-held pulsating shower head
    Patent number: D408888
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: April 27, 1999
    Assignee: Oasis Global Limited
    Inventor: Hing Wah Raico Huen