Patents by Inventor Tung Lau

Tung 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).

  • Patent number: 6542699
    Abstract: A camera is provided with an object lens, an aperture and a guiding device for an image-recording medium. The camera includes a device for providing generally scattered or white light to be incident on a first portion of the image-recording medium and a light adjusting device for varying the dissipation of the white or scatted light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing device with a focal length in a first area being infinite and in a second area being a relatively short focusing light on the image close to the lens system, for example, on the plate held in front of the lens system. A light enhancement device is also provided for increasing the light on the first portion of the image-recording medium.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: April 1, 2003
    Assignee: Ginfax Development Limited
    Inventors: Ming Tung Lau, Quan Jiang
  • Publication number: 20010053048
    Abstract: An actuator includes a coil support that is integral with the hub. The support includes a flange disposed between two support arms. Joining the flange to the hub is a base that defines a groove in which resides a proximal leg of a voice coil. The voice coil is attached to the flange and the support arms, as well as to the base.
    Type: Application
    Filed: June 18, 2001
    Publication date: December 20, 2001
    Inventors: Jierapipatanakul Niroot, Andre Liem, Chee Wai Seetoh, Joseph Heng Tung Lau, Xiong Liu
  • Publication number: 20010028797
    Abstract: A camera is provided with an object lens, an aperture and a guiding device for an image-recording medium. The camera includes a device for providing generally scattered or white light to be incident on a first portion of the image-recording medium and a light adjusting device for varying the dissipation of the white or scatted light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing device with a focal length in a first area being infinite and in a second area being a relatively short focusing light on the image close to the lens system, for example, on the plate held in front of the lens system. A light enhancement device is also provided for increasing the light on the first portion of the image-recording medium.
    Type: Application
    Filed: May 2, 2001
    Publication date: October 11, 2001
    Applicant: Ginfax Development Limited
    Inventors: Ming Tung Lau, Quan Jiang
  • Patent number: 6289181
    Abstract: A camera (1) is provided with an object lens, an aperture and guiding means for an image recording medium. The camera includes a means for providing generally scattered or white light to be incident on a first portion of the image recording medium and a light adjusting means for varying the dissipation of the white or scattered light across the aperture of the camera in relation to the exposure time across the aperture. The camera also includes a lens system with an object lens and an additional focusing means with a focal length in a first area being infinite and in a second area being relatively short focusing light on the image close to the lens system, for example on the plate (10) held in front of the lens system. Light enhancement means are also provided for increasing the light on the first portion of the image recording medium.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: September 11, 2001
    Assignee: Ginfax Development Limited
    Inventors: Ming Tung Lau, Quan Jiang
  • Patent number: 6256173
    Abstract: An apparatus for isolating vibration in pivot bearing assemblies that is incorporated in a standard pivot bearing assembly without requiring modification of the pivot bearing assembly. Washers are used between the pivot bearing assembly and the base plate of a disc drive upon which the assembly is mounted. In addition, a second washer is positioned on the shaft of the assembly and is held in place by a shoulder screw which fastens the assembly to the base plate.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: July 3, 2001
    Assignee: Seagate Technology LLC
    Inventors: Wai Onn Chee, Joseph Heng Tung Lau, Michael Joo Chiang Toh, Xiong Liu