Patents by Inventor Wing Kei Ho

Wing Kei Ho 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: 9138504
    Abstract: The present invention relates to a novel plasma driven catalyst apparatus for disinfecting and purifying air. The apparatus has a synergistically favorable effect from plasma and catalyst on high disinfecting and purifying efficiency and efficacy, low by-product formation, and low energy consumption. The plasma combined with catalyst enhances the production of new active species, increases the oxidizing power of the plasma discharge, as well as activate the catalyst that additionally contributes towards the disinfection and purification process and the elimination of toxic by-products.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: September 22, 2015
    Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventors: Jifan Li, Wai Man Peter Lee, Wing Kei Ho
  • Patent number: 8978427
    Abstract: Security tag includes a housing and a movable locking element. A latch within the housing is resiliently biased toward the movable locking element and movable responsive to a magnetic field between a locked position and an unlocked position. A guide structure is arranged to constrain movement of the latch. The latch and the guide structure are cooperatively arranged to ensure an engagement that will disrupt a motion trajectory of the latch occurring when the housing is subjected to a physical impact. Consequently, the latch is selectively inhibited from moving fully from the locked position to the unlocked position when the housing is subjected to the physical impact.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: March 17, 2015
    Assignee: Tyco Fire & Security GmbH
    Inventors: Wing Kei Ho, Gopal Chandramowle
  • Publication number: 20150050191
    Abstract: The present invention relates to a novel plasma driven catalyst apparatus for disinfecting and purifying air. The apparatus has a synergistically favorable effect from plasma and catalyst on high disinfecting and purifying efficiency and efficacy, low by-product formation, and low energy consumption. The plasma combined with catalyst enhances the production of new active species, increases the oxidizing power of the plasma discharge, as well as activate the catalyst that additionally contributes towards the disinfection and purification process and the elimination of toxic by-products.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 19, 2015
    Inventors: Jifan LI, Wai Man Peter LEE, Wing Kei HO
  • Patent number: 8912904
    Abstract: A security system including a security tag is provided. The security tag includes a housing and a pin in which the pin is removably insertable into the housing. The security tag further includes a latching element disposed within the housing and positionable in a lock position and in an unlock position. The latching element includes a pivot axis. The latching element has a substantially balanced rotational response about the pivot axis when exposed to an external physical mechanical impulse. The security tag further includes a bias element that releasably positions the latching element in the lock position. The latching element releasably engages the inserted pin when in the lock position.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: December 16, 2014
    Assignee: Tyco Fire & Security GmbH
    Inventor: Wing Kei Ho
  • Patent number: 8833652
    Abstract: A product information system including a server having an item database that stores at least one item identifier and corresponding item data for at least one item. Also, the item database is associated with a predetermined vendor. The server also includes a receiver that receives a message including tag data captured from a tag by a portable wireless device. The tag data includes an item identifier. Also, the server includes a processor that operates, in response to the received message, to select item data from the item database that corresponds to the received item identifier. The server also includes a transmitter that transmits the selected item data to the portable wireless device.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 16, 2014
    Assignee: Tyco Fire & Security GmbH
    Inventors: Paul Brent Rasband, Stewart E. Hall, Wing Kei Ho, Mohammad Mohiuddin, Nancy Lee Van Nest, Manjuprakash Rama Rao, Timothy J. Relihan, Richard L. Copeland
  • Publication number: 20140242363
    Abstract: The presently claimed invention provides a coating solution for an antibacterial coating, and a method for synthesizing the coating solution. The coating solution comprises ethanol, nitric acid, titanium tetraisopropoxide, water, and silver nitrate. Furthermore, a coating method for deposition of the antibacterial coating is also provided. The antibacterial coating of the present invention is effective in providing antibacterial function, easy to be manufactured, and durable.
    Type: Application
    Filed: December 30, 2013
    Publication date: August 28, 2014
    Applicant: Nano and Advanced Materials Institute Limited
    Inventors: Ngar Yee HUEN, Connie Sau Kuen KWOK, Wing Kei HO, Peter Wai Man LEE
  • Publication number: 20140232544
    Abstract: A security system tag. The security system tag includes a housing. The security system tag further includes an electronic article surveillance, EAS, element in which the EAS element is arranged to emit a detectable signal when introduced to an interrogation signal. The security system tag further includes a metal element in which the metal element is adapted to be heated. The security system tag further includes a first reversible adhesive proximate the metal element in which at least a portion of the first reversible adhesive de-bonds when thermally affected by the metal element when the metal element is heated.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 21, 2014
    Inventors: Yannan Yang, Ming Fang, Yinghua Xu, Yunyue Yang, Ming-Ren Lian, Nen-Chin Liu, Hubert A. Patterson, Wing Kei Ho
  • Publication number: 20140123714
    Abstract: Security tag includes a housing and a movable locking element. A latch within the housing is resiliently biased toward the movable locking element and movable responsive to a magnetic field between a locked position and an unlocked position. A guide structure is arranged to constrain movement of the latch. The latch and the guide structure are cooperatively arranged to ensure an engagement that will disrupt a motion trajectory of the latch occurring when the housing is subjected to a physical impact. Consequently, the latch is selectively inhibited from moving fully from the locked position to the unlocked position when the housing is subjected to the physical impact.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 8, 2014
    Applicant: Tyco Fire & Security GmbH
    Inventors: WING Kei HO, Gopal Chandramowle
  • Patent number: 8717145
    Abstract: A system and method selectively reads radio frequency identification (“RFID”) tags within an RFID interrogation zone. A portion of the RFID tags have a first operating range and a portion of the RFID tags have a second operating range that is different from the first operating range. Each RFID tag is programmed with an identifier associated with the operating range of the RFID tag. A first interrogation signal is transmitted which has sufficient power to activate RFID tags that are located within the RFID interrogation zone and have the first operating range. A response signal is received from each RFID tag capable of receiving the first interrogation signal. Each response signal indicates the identifier of the associated RFID tag. Each RFID tag that has an identifier associated with the first operating range is selected.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: May 6, 2014
    Assignee: Tyco Fire & Security Services GmbH
    Inventors: Wing Kei Ho, Mark Alexis
  • Patent number: 8529831
    Abstract: A system for air purification based on in-situ photocatalytic oxidation and ozonation includes a single multi-functional Ti02-based coating having photocatalytic activity for oxidation in the presence of a sufficient ozone supply and UV irradiation to synergistically oxidize gaseous pollutants at ambient conditions. Also disclosed is a method for removing gaseous pollutants using ozone and UV irradiation to simultaneously activate the photocatalytic oxidation in the presence of the Ti02-based coating to remove up to about 84% of the gaseous pollutants within 5 minutes.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 10, 2013
    Assignees: Nano and Advanced Materials Institute Limited, Institute Company Limited
    Inventors: Wing Kei Ho, Jian Hui Huang
  • Patent number: 8464956
    Abstract: A method and system for security tag attachment using a reversible adhesive in which a security tag has an outer surface and an inner volume. The tag includes at least one of an Electronic Article Surveillance (EAS) element and a Radio Frequency Identification (RFID) element disposed within the inner volume. The system also includes a reversible adhesive disposed on at least a portion of the outer surface.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: June 18, 2013
    Assignee: Tyco Fire & Security GmbH
    Inventors: Wing Kei Ho, Hubert A. Patterson
  • Publication number: 20130048721
    Abstract: A product information system including a server having an item database that stores at least one item identifier and corresponding item data for at least one item. Also, the item database is associated with a predetermined vendor. The server also includes a receiver that receives a message including tag data captured from a tag by a portable wireless device. The tag data includes an item identifier. Also, the server includes a processor that operates, in response to the received message, to select item data from the item database that corresponds to the received item identifier. The server also includes a transmitter that transmits the selected item data to the portable wireless device.
    Type: Application
    Filed: August 23, 2011
    Publication date: February 28, 2013
    Applicant: SENSORMATIC ELECTRONICS, LLC
    Inventors: Paul Brent RASBAND, Stewart E. HALL, Wing Kei HO, Mohammad MOHIUDDIN, Nancy Lee VAN NEST, Manjuprakash Rama RAO, Timothy J. RELIHAN, Richard L. COPELAND
  • Publication number: 20110215157
    Abstract: A method and system for security tag attachment using a reversible adhesive in which a security tag has an outer surface and an inner volume. The tag includes at least one of an Electronic Article Surveillance (EAS) element and a Radio Frequency Identification (RFID) element disposed within the inner volume. The system also includes a reversible adhesive disposed on at least a portion of the outer surface.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 8, 2011
    Applicant: SENSORMATIC ELECTRONICS, LLC
    Inventors: Wing Kei HO, Hubert A. PATTERSON
  • Patent number: 7986241
    Abstract: A security tag and system for securing objects, the system and security tag includes an acousto magnetic (“AM”) electronic article surveillance (“EAS”) component that has a housing with a defined surface area. The housing of the EAS component includes a perimeter boundary that defines an EAS component plane. The system and security tag further include a radio frequency identification (“RFID”) component that includes an integrated circuit and a dipole antenna defining an RFID component plane that is substantially coplanar with the EAS component plane. The integrated circuit and the dipole antenna are positioned externally along the perimeter boundary of the EAS component.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: July 26, 2011
    Assignee: Sensomatic Electronics, LLC
    Inventors: Richard L. Copeland, Wing Kei Ho
  • Publication number: 20110050400
    Abstract: A system and method selectively reads radio frequency identification (“RFID”) tags within an RFID interrogation zone. A portion of the RFID tags have a first operating range and a portion of the RFID tags have a second operating range that is different from the first operating range. Each RFID tag is programmed with an identifier associated with the operating range of the RFID tag. A first interrogation signal is transmitted which has sufficient power to activate RFID tags that are located within the RFID interrogation zone and have the first operating range. A response signal is received from each RFID tag capable of receiving the first interrogation signal. Each response signal indicates the identifier of the associated RFID tag. Each RFID tag that has an identifier associated with the first operating range is selected.
    Type: Application
    Filed: August 25, 2009
    Publication date: March 3, 2011
    Applicant: SENSORMATIC ELECTRONICS CORPORATION
    Inventors: Wing Kei HO, Mark ALEXIS
  • Publication number: 20090189768
    Abstract: A security tag and system for securing objects, the system and security tag includes an acousto magnetic (“AM”) electronic article surveillance (“EAS”) component that has a housing with a defined surface area. The housing of the EAS component includes a perimeter boundary that defines an EAS component plane. The system and security tag further include a radio frequency identification (“RFID”) component that includes an integrated circuit and a dipole antenna defining an RFID component plane that is substantially coplanar with the EAS component plane. The integrated circuit and the dipole antenna are positioned externally along the perimeter boundary of the EAS component.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Applicant: SENSORMATIC ELECTRONICS CORPORATION
    Inventors: Richard L. Copeland, Wing Kei Ho
  • Publication number: 20030082456
    Abstract: A mercury-free alkaline button cell battery, includes an anode plate, a cathode cap, a cathode zinc paste, a seal ring, an anode case and a membrane. A layer of indium or tin is plated on the cathode plate, and indium is added into the zinc paste to replace mercury. A layer of indium or tin is plated on the cathode plate to prevent zinc in the cell from contacting other material or metal, to avoid swelling that could result in the release of gas.
    Type: Application
    Filed: July 8, 2002
    Publication date: May 1, 2003
    Inventor: Wing Kei Ho