Patents by Inventor Tehli Shao

Tehli Shao 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).

  • Rotary deflector, optical scanning unit and image forming apparatus
    Patent number: 7394582
    Abstract: The inventive device reduces noises and stabilizes the image quality of an image forming apparatus by reducing vibration thereof by reducing vibration of a driving source itself within a preset frequency range without changing the resonating condition of a housing. A mass member is added to a stationary shaft of a driving motor for rotating a polygon mirror. It then becomes possible to reduce the vibration and noise of an image forming apparatus by avoiding resonation by moving a resonance point by adding the mass member to the stationary shaft. Thus, a high image quality image forming apparatus can be realized.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: July 1, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masayoshi Okura, Takahiko Kobayashi, Tehli Shao, Masahiko Otsu
  • Rotary deflector, optical scanning unit and image forming apparatus
    Patent number: 6980340
    Abstract: The inventive device reduces noises and stabilizes the image quality of an image forming apparatus by reducing vibration thereof by reducing vibration of a driving source itself within a preset frequency range without changing the resonating condition of a housing. A mass member is added to a stationary shaft of a driving motor for rotating a polygon mirror. It then becomes possible to reduce the vibration and noise of an image forming apparatus by avoiding resonation by moving a resonance point by adding the mass member to the stationary shaft. Thus, a high image quality image forming apparatus can be realized.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: December 27, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masayoshi Okura, Takahiko Kobayashi, Tehli Shao, Masahiko Otsu
  • Rotary deflector, optical scanning unit and image forming apparatus
    Publication number: 20050243395
    Abstract: The inventive device reduces noises and stabilizes the image quality of an image forming apparatus by reducing vibration thereof by reducing vibration of a driving source itself within a preset frequency range without changing the resonating condition of a housing. A mass member is added to a stationary shaft of a driving motor for rotating a polygon mirror. It then becomes possible to reduce the vibration and noise of an image forming apparatus by avoiding resonation by moving a resonance point by adding the mass member to the stationary shaft. Thus, a high image quality image forming apparatus can be realized.
    Type: Application
    Filed: June 8, 2005
    Publication date: November 3, 2005
    Inventors: Masayoshi Okura, Takahiko Kobayshi, Tehli Shao, Masahiko Otsu