Patents by Inventor Yeow Yong Chan

Yeow Yong Chan 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: 8102619
    Abstract: A method and apparatus for a filter for filtering airborne particles present within an enclosure containing equipment sensitive is provided. The filter may be used within the enclosure of a hard disk drive. The filter may comprise a magnetic plate enclosed by a protective layer, which in turn may be enclosed by a non-woven scrim. The magnetic plate has a magnetic property that generates a magnetic field attractive to paramagnetic particles within the enclosure. The protective layer forms a barrier that prevents particles of the magnetic plate from entering into the enclosure. The non-woven scrim may, but need not, have an adhesive property which traps non-paramagnetic particles coming in contact with the non-woven scrim. If the non-woven scrim lacks an adhesive property, then at least a portion of the non-woven scrim may be coated with an adhesive layer which traps non-paramagnetic particles coming in contact with the non-woven scrim.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: January 24, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Yeow Yong Chan, Shaoyong Liu, Jing Fang Pan, Yi Zhao Yao
  • Patent number: 8098459
    Abstract: Connecting a preamplifier to a printed circuit board assembly on a hard disk drive. The disk includes a housing, a head stack assembly coupled with the housing, a printed circuit board assembly comprising via holes, a preamplifier coupled with the head stack assembly, and at least one deformable pogo pin configured to mechanically and communicatively connect the printed circuit board assembly to the preamplifier upon insertion into the via holes, further configured to comprise a tip and a shaft, and further configured to deform upon insertion into the via holes.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: January 17, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Yeow Yong Chan, Hongyan Jiang, Shaoyong Liu, Xiaomin Liu
  • Publication number: 20100172051
    Abstract: A method and apparatus for a filter for filtering airborne particles present within an enclosure containing equipment sensitive is provided. The filter may be used within the enclosure of a hard disk drive. The filter may comprise a magnetic plate enclosed by a protective layer, which in turn may be enclosed by a non-woven scrim. The magnetic plate has a magnetic property that generates a magnetic field attractive to paramagnetic particles within the enclosure. The protective layer forms a barrier that prevents particles of the magnetic plate from entering into the enclosure. The non-woven scrim may, but need not, have an adhesive property which traps non-paramagnetic particles coming in contact with the non-woven scrim. If the non-woven scrim lacks an adhesive property, then at least a portion of the non-woven scrim may be coated with an adhesive layer which traps non-paramagnetic particles coming in contact with the non-woven scrim.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 8, 2010
    Inventors: Yeow Yong Chan, Shaoyong Liu, Jing Fang Pan, Yi Zhao Yao
  • Publication number: 20100128398
    Abstract: Connecting a preamplifier to a printed circuit board assembly on a hard disk drive. The disk includes a housing, a head stack assembly coupled with the housing, a printed circuit board assembly comprising via holes, a preamplifier coupled with the head stack assembly, and at least one deformable pogo pin configured to mechanically and communicatively connect the printed circuit board assembly to the preamplifier upon insertion into the via holes, further configured to comprise a tip and a shaft, and further configured to deform upon insertion into the via holes.
    Type: Application
    Filed: November 26, 2008
    Publication date: May 27, 2010
    Inventors: Yeow Yong Chan, Hongyan Jiang, Shaoyong Liu, Xiaomin Liu