Patents by Inventor Kam Cheung

Kam Cheung 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: 11326278
    Abstract: Techniques for producing an article having hollow structures are described herein. The disclosed techniques include weaving a plurality of yarns to form a woven fabric, wherein the plurality of yarns each comprise a dissolvable core, and the dissolvable core comprises polyvinyl alcohol (PVA) having a water solubility; neutralizing an alkaline before drying the woven fabric to maintain the water solubility of the PVA; and washing the woven fabric or a garment made by the woven fabric to at least partially remove the dissolvable core.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: May 10, 2022
    Inventor: Kam Cheung Koo
  • Publication number: 20200378039
    Abstract: Techniques for producing an article having hollow structures are described herein. The disclosed techniques include weaving a plurality of yarns to form a woven fabric, wherein the plurality of yams each comprise a dissolvable core, and the dissolvable core comprises polyvinyl alcohol (PVA) having a water solubility; neutralizing an alkaline before drying the woven fabric to maintain the water solubility of the PVA; and washing the woven fabric or a garment made by the woven fabric to at least partially remove the dissolvable core.
    Type: Application
    Filed: July 20, 2020
    Publication date: December 3, 2020
    Inventor: Kam Cheung KOO
  • Publication number: 20190106813
    Abstract: A substantially hollow structured elastic core-spun yarn has a dissoluble core and main stretch core covered with single or multiple slivers. The dissoluble core would be partially or totally removed in yarn processing, or fabric finishing, or garment finishing, and removed with combination of different stages' processing.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventor: Kam Cheung Koo
  • Publication number: 20050225288
    Abstract: An audio power unit is disclosed which provides an audio output and charges removable battery packs as well as providing a number of AC receptacles for powering other tools and the like when the unit is connected to a source of AC power. The unit can optionally also provide DC power. When the unit is connected to a source of AC power, the AC power drives the audio unit which may be a radio or a combination radio and CD player and the AC source also powers a charger which recharges a battery pack if a battery pack is inserted into the charger receptacle. If the unit is not connected to a source of AC power, the radio may be powered by a battery pack when it is placed in the charger receptacle. When the unit is connected to a source of AC power, a relay is opened to isolate the radio unit from the charger and battery pack. The unit has a unique protective frame structure that is connected to the housing of the unit.
    Type: Application
    Filed: February 10, 2005
    Publication date: October 13, 2005
    Inventors: Steven Cole, Ravi Voruganti, Wing Ng, Kam Cheung
  • Publication number: 20050001809
    Abstract: An LCD controller (10) has a DMA unit (18) and a FIFO memory (20) for storing display data. The LCD controller also has a display data generator (26) that generates display information using a line of the display data stored in the FIFO memory in accordance with a predefined algorithm. A holding register (28) is connected to the display data generator and stores the generated display information. A multiplexer (34) selects for display either the data stored in the FIFO memory or the generated display information. The generated display information is selected when there is a bus overload indicating that the data stored in the FIFO may be erroneous.
    Type: Application
    Filed: July 3, 2003
    Publication date: January 6, 2005
    Inventors: Ho Au, Kam Cheung
  • Patent number: 6823458
    Abstract: An apparatus and method for securing system resources in a concurrent multiple operating system environment wherein when a client device or application requests access to system resources the request is received by the apparatus which then determines if the resources requested are currently being used by another client or application. Based on a unique identifier sent by the client or application, the apparatus searches a resource state data structure for the resource requested and compares the unique identifier sent by the client or application with the unique identifier stored in the resource state data structure in association with the requested resource. If the two unique identifiers are the same, the client/application is provided with access to the requested resource. If the unique identifiers are different, the client/application is denied access to the requested resources.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: November 23, 2004
    Assignee: International Business Machines Corporation
    Inventors: Kam Cheung Lee, Wing Hung Lee
  • Patent number: D392756
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: March 24, 1998
    Assignee: Aspen Marketing, Inc.
    Inventors: James L. Hanig, Stephen Lee Kam Cheung