Patents by Inventor Ru Zheng Liu

Ru Zheng Liu 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: 7967146
    Abstract: A portion of a container includes a plurality of first resilient support members having a first height. The first resilient support members are configured to contact an edge of a component placed in the container. A plurality of second support members each have a second, smaller height. The second support members are arranged relative to the first resilient support members such that the second support members contact the edge of the component if corresponding ones of the first resilient support members deflect a sufficient amount.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: June 28, 2011
    Assignee: e.PAK International, Inc.
    Inventors: Song Ping Chen, Ru Zheng Liu
  • Publication number: 20090038963
    Abstract: A portion of a container includes a plurality of first resilient support members having a first height. The first resilient support members are configured to contact an edge of a component placed in the container. A plurality of second support members each have a second, smaller height. The second support members are arranged relative to the first resilient support members such that the second support members contact the edge of the component if corresponding ones of the first resilient support members deflect a sufficient amount.
    Type: Application
    Filed: July 11, 2008
    Publication date: February 12, 2009
    Inventors: Song Ping Chen, Ru Zheng Liu
  • Patent number: 7425362
    Abstract: A plastic cushion pad (40) includes at least one plastic spring portion (46) between oppositely facing contact surfaces (42, 44). In one example, the pad (40) is vacuum formed using a film of carbon-impregnated polystyrene material. The plastic spring portion (46) is configured to provide the desired amount of resiliency or cushion provided by the pad responsive to a compressive force. In one example, the plastic spring portion is designed to prevent any lateral deformation of the pad when a compressive force is applied.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: September 16, 2008
    Assignee: e.Pak International, Inc.
    Inventors: James R. Thomas, Clifton C. Haggard, Jason D. Brown, Song Ping Chen, Ru Zheng Liu, Michael L. Hayden
  • Patent number: 7147107
    Abstract: A platform (40) has a rigid body with an adjustable thickness (t) to selectively occupy any remaining space within a container (20) used for packaging items such as semiconductor wafers (22). The platform (40) in one example has a first portion (42) and a second portion (44). Adjusting the positions of the first and second portions (42, 44) relative to each other selectively varies the thickness (t) of the platform (40) to achieve the desired thickness.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: December 12, 2006
    Assignee: e.PAK International, Inc.
    Inventors: Clifton C. Haggard, James R. Thomas, Song Ping Chen, Ru Zheng Liu
  • Patent number: 6988620
    Abstract: A container for packaging items such as semiconductor wafers has a restraining portion with a changeable dimension at an open end that facilitates using conventional loading techniques while also more securely containing the items to avoid undesirable movement of the items in the container. In one example embodiment, the restraining portion includes a sidewall portion that has a first, nominal inside dimension at one end. A second end of the sidewall portion has a second, greater inside dimension at an open end. Another member of the container cooperates with the sidewall portion to change the inside dimension at the open end from the second, greater dimension to the first, nominal dimension. The nominal dimension is selected to correspond to an exterior dimension of the items to be contained within the package so that the container maintains the items in a secure alignment that eliminates lateral movement of the items once the container is secured.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: January 24, 2006
    Assignee: e.PAK International, Inc.
    Inventors: Clifton C. Haggard, James R. Thomas, Song Ping Chen, Ru Zheng Liu
  • Patent number: 6892886
    Abstract: A carrier tape for handling electrical components includes a reinforced component restraining member. Each pocket of the carrier tape includes at least one component restraining member that resists lateral movement of a component within the pocket. The component restraining member includes a first portion having a first height or spacing from a bottom surface in the pocket. A second portion of the restraining member has a second, taller height or spacing from the bottom surface. The first, lower portion reinforces the component restraining member and strengthens it to avoid lateral deformation during shipment or handling of the carrier tape when an electrical component is placed within the pocket.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: May 17, 2005
    Assignee: e.PAK International, Inc.
    Inventors: Mao Shi Khoo, Ru Zheng Liu, GuangLiang Xu, Yong Fan, SongPing Chen
  • Patent number: 6809936
    Abstract: A carrier for handling integrated circuit components during storage and shipping includes a plurality of pocket portions each for supporting an individual component. The pocket portions include a base surface and a plurality of sidewalls defining the pocket generally. The sidewalls include support surfaces arranged at a first, oblique angle relative to the base surface. A plurality of retainer surfaces are associated with at least some of the support surfaces. The retainer surfaces extend at a second angle relative to the base surface. The retainer surfaces cooperate with the support surfaces to maintain the integrated circuit components within the pockets in a desired alignment throughout handling. One example includes guide surfaces that facilitate inserting the components into the pockets.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: October 26, 2004
    Assignee: e.PAK International, Inc.
    Inventors: Song Ping Chen, Ru Zheng Liu, Joo Yam Lau
  • Publication number: 20040178107
    Abstract: A platform (40) has a rigid body with an adjustable thickness (t) to selectively occupy any remaining space within a container (20) used for packaging items such as semiconductor wafers (22). The platform (40) in one example has a first portion (42) and a second portion (44). Adjusting the positions of the first and second portions (42, 44) relative to each other selectively varies the thickness (t) of the platform (40) to achieve the desired thickness.
    Type: Application
    Filed: March 11, 2003
    Publication date: September 16, 2004
    Inventors: Clifton C. Haggard, James R. Thomas, Song Ping Chen, Ru Zheng Liu
  • Publication number: 20040048028
    Abstract: A plastic cushion pad (40) includes at least one plastic spring portion (46) between oppositely facing contact surfaces (42, 44). In one example, the pad (40) is vacuum formed using a film of carbon-impregnated polystyrene material. The plastic spring portion (46) is configured to provide the desired amount of resiliency or cushion provided by the pad responsive to a compressive force. In one example, the plastic spring portion is designed to prevent any lateral deformation of the pad when a compressive force is applied.
    Type: Application
    Filed: March 11, 2003
    Publication date: March 11, 2004
    Inventors: James R. Thomas, Clifton C. Haggard, Jason D. Brown, Song Ping Chen, Ru Zheng Liu, Michael L. Hayden
  • Publication number: 20040045263
    Abstract: A container for packaging items such as semiconductor wafers has a restraining portion with a changeable dimension at an open end that facilitates using conventional loading techniques while also more securely containing the items to avoid undesirable movement of the items in the container. In one example embodiment, the restraining portion includes a sidewall portion that has a first, nominal inside dimension at one end. A second end of the sidewall portion has a second, greater inside dimension at an open end. Another member of the container cooperates with the sidewall portion to change the inside dimension at the open end from the second, greater dimension to the first, nominal dimension. The nominal dimension is selected to correspond to an exterior dimension of the items to be contained within the package so that the container maintains the items in a secure alignment that eliminates lateral movement of the items once the container is secured.
    Type: Application
    Filed: March 11, 2003
    Publication date: March 11, 2004
    Inventors: Clifton C. Haggard, James R. Thomas, Song Ping Chen, Ru Zheng Liu
  • Publication number: 20040007497
    Abstract: A carrier tape for handling electrical components includes a reinforced component restraining member. Each pocket of the carrier tape includes at least one component restraining member that resists lateral movement of a component within the pocket. The component restraining member includes a first portion having a first height or spacing from a bottom surface in the pocket. A second portion of the restraining member has a second, taller height or spacing from the bottom surface. The first, lower portion reinforces the component restraining member and strengthens it to avoid lateral deformation during shipment or handling of the carrier tape when an electrical component is placed within the pocket.
    Type: Application
    Filed: July 12, 2002
    Publication date: January 15, 2004
    Inventors: Mao Shi Khoo, Ru Zheng Liu, GuangLiang Xu, Yong Fan, SongPing Chen
  • Publication number: 20030147229
    Abstract: A carrier for handling integrated circuit components during storage and shipping includes a plurality of pocket portions each for supporting an individual component. The pocket portions include a base surface and a plurality of sidewalls defining the pocket generally. The sidewalls include support surfaces arranged at a first, oblique angle relative to the base surface. A plurality of retainer surfaces are associated with at least some of the support surfaces. The retainer surfaces extend at a second angle relative to the base surface. The retainer surfaces cooperate with the support surfaces to maintain the integrated circuit components within the pockets in a desired alignment throughout handling. One example includes guide surfaces that facilitate inserting the components into the pockets.
    Type: Application
    Filed: May 7, 2002
    Publication date: August 7, 2003
    Inventors: Song Ping Chen, Ru Zheng Liu, Joo Yam Lau
  • Patent number: D639154
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 7, 2011
    Assignee: E.Pak International, Inc.
    Inventors: Song Ping Chen, Ru Zheng Liu