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).
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Patent number: 9138504Abstract: 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: GrantFiled: July 29, 2014Date of Patent: September 22, 2015Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITEDInventors: Jifan Li, Wai Man Peter Lee, Wing Kei Ho
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Patent number: 8978427Abstract: 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: GrantFiled: November 5, 2013Date of Patent: March 17, 2015Assignee: Tyco Fire & Security GmbHInventors: Wing Kei Ho, Gopal Chandramowle
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Publication number: 20150050191Abstract: 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: ApplicationFiled: July 29, 2014Publication date: February 19, 2015Inventors: Jifan LI, Wai Man Peter LEE, Wing Kei HO
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Patent number: 8912904Abstract: 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: GrantFiled: December 4, 2012Date of Patent: December 16, 2014Assignee: Tyco Fire & Security GmbHInventor: Wing Kei Ho
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Patent number: 8833652Abstract: 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: GrantFiled: August 23, 2011Date of Patent: September 16, 2014Assignee: Tyco Fire & Security GmbHInventors: Paul Brent Rasband, Stewart E. Hall, Wing Kei Ho, Mohammad Mohiuddin, Nancy Lee Van Nest, Manjuprakash Rama Rao, Timothy J. Relihan, Richard L. Copeland
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Publication number: 20140242363Abstract: 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: ApplicationFiled: December 30, 2013Publication date: August 28, 2014Applicant: Nano and Advanced Materials Institute LimitedInventors: Ngar Yee HUEN, Connie Sau Kuen KWOK, Wing Kei HO, Peter Wai Man LEE
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Publication number: 20140232544Abstract: 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: ApplicationFiled: March 15, 2013Publication date: August 21, 2014Inventors: Yannan Yang, Ming Fang, Yinghua Xu, Yunyue Yang, Ming-Ren Lian, Nen-Chin Liu, Hubert A. Patterson, Wing Kei Ho
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Publication number: 20140123714Abstract: 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: ApplicationFiled: November 5, 2013Publication date: May 8, 2014Applicant: Tyco Fire & Security GmbHInventors: WING Kei HO, Gopal Chandramowle
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Patent number: 8717145Abstract: 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: GrantFiled: August 25, 2009Date of Patent: May 6, 2014Assignee: Tyco Fire & Security Services GmbHInventors: Wing Kei Ho, Mark Alexis
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Patent number: 8529831Abstract: 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: GrantFiled: December 16, 2011Date of Patent: September 10, 2013Assignees: Nano and Advanced Materials Institute Limited, Institute Company LimitedInventors: Wing Kei Ho, Jian Hui Huang
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Patent number: 8464956Abstract: 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: GrantFiled: March 3, 2011Date of Patent: June 18, 2013Assignee: Tyco Fire & Security GmbHInventors: Wing Kei Ho, Hubert A. Patterson
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Publication number: 20130048721Abstract: 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: ApplicationFiled: August 23, 2011Publication date: February 28, 2013Applicant: SENSORMATIC ELECTRONICS, LLCInventors: Paul Brent RASBAND, Stewart E. HALL, Wing Kei HO, Mohammad MOHIUDDIN, Nancy Lee VAN NEST, Manjuprakash Rama RAO, Timothy J. RELIHAN, Richard L. COPELAND
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Publication number: 20110215157Abstract: 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: ApplicationFiled: March 3, 2011Publication date: September 8, 2011Applicant: SENSORMATIC ELECTRONICS, LLCInventors: Wing Kei HO, Hubert A. PATTERSON
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Patent number: 7986241Abstract: 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: GrantFiled: January 25, 2008Date of Patent: July 26, 2011Assignee: Sensomatic Electronics, LLCInventors: Richard L. Copeland, Wing Kei Ho
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Publication number: 20110050400Abstract: 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: ApplicationFiled: August 25, 2009Publication date: March 3, 2011Applicant: SENSORMATIC ELECTRONICS CORPORATIONInventors: Wing Kei HO, Mark ALEXIS
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Publication number: 20090189768Abstract: 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: ApplicationFiled: January 25, 2008Publication date: July 30, 2009Applicant: SENSORMATIC ELECTRONICS CORPORATIONInventors: Richard L. Copeland, Wing Kei Ho
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Publication number: 20030082456Abstract: 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: ApplicationFiled: July 8, 2002Publication date: May 1, 2003Inventor: Wing Kei Ho