Patents by Inventor Kok Chong

Kok Chong 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: 11502520
    Abstract: A battery module includes a first load terminal, a second load terminal, a first charger terminal, a charger enable terminal, and a battery having a first battery terminal coupled to the first load terminal and a second terminal coupled to the second load terminal. A first isolation device is coupled between the first load terminal and the first charger terminal and has an enable terminal coupled to the charger enable terminal. A first protection circuit includes a second isolation device coupled between the second battery terminal and the second load terminal and a first sensing circuit configured to enable the second isolation device responsive to detecting a failure of the first isolation device.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 15, 2022
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Muhamad Ridzuan Azizan, Abdul Rashid Abdul Halim, Friedrich Bollmann, Kow Chee Chong, Jeevan Kanesalingam, Macwien Krishnamurthi, Chen Kok Yeoh
  • Patent number: 11387645
    Abstract: An apparatus and method for providing a selectively reduced voltage to a portable electronic device are disclosed. When a determination is made that an output voltage from a voltage source exceeds a predefined maximum permitted voltage, a plurality of circuitries, including an adaptive active current limiting circuitry, are enabled in order to derive the reduced voltage from the output voltage. The reduced voltage is at least at or below the predefined maximum permitted voltage and is supplied to the portable electronic device by battery circuitry that includes the active current limiting circuitry.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: July 12, 2022
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Muhamad Ridzuan Azizan, Chen Kok Yeoh, Wai Mun Lee, Mohd Faisal Abdullah, Kow Chee Chong, Macwien Krishnamurthi
  • Patent number: 10584242
    Abstract: The various embodiments of the present invention disclose an peroxide-vulcanised TPVs based on Hevea Brasiliensis natural rubber, polypropylene and solid sulfonic acid doped polyaniline [PAni.DBSA] with useful electrical conductivities (up to about 2.1±0.2 S/cm] can be produced by using an internal mixer. The peroxide-vulcanised TPVs exhibit useful physical properties and also possess a reasonable good electromagnetic interferences shielding effectiveness. These peroxide-vulcanised TPVs could be recycled up to 4 times without significant loss of their EMI SE, electrical and physical properties. As a result, they have good potential to be used for manufacturing any EMI shielding products, such as EMI shielding seals and gaskets.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: March 10, 2020
    Assignee: LEMBAGA GETAH MALAYSIA
    Inventor: Kok Chong Yong
  • Patent number: 10455886
    Abstract: Electrically conductive vulcanized epoxidized natural rubber [ENR]-carbon black blends can be produced by using either internal mechanical mixing method or open milling method. These two methods are commercially friendly due to their practicability and high production rate. The addition of vulcanization system, either sulfur or peroxide type does not affect the electrical properties of the vulcanized blends. All vulcanized blends prepared in this innovation show useful electrical properties with electrical volume resistances as low as the order of 101 ohms. All these vulcanized blends also exhibit good mechanical properties with tensile strengths up to 26.0 MPa and Dunlop rebound resiliencies of 14.0% (i.e. high damping property). The black color level of all these vulcanized blends is adjustable. As a result of good electrical and mechanical properties (especially high damping property), they have good potential to be used for antistatic footwear manufacturing and application.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: October 29, 2019
    Assignee: LEMBAGA GETAH MALAYSIA
    Inventors: Yong Kok Chong, Ahmad Mohamad Asri
  • Publication number: 20180346719
    Abstract: The various embodiments of the present invention disclose an peroxide-vulcanised TPVs based on Hevea Brasiliensis natural rubber, polypropylene and solid sulfonic acid doped polyaniline [PAni.DBSA] with useful electrical conductivities (up to about 2.1+0.2 S/cm] can be produced by using an internal mixer. The peroxide-vulcanised TPVs exhibit useful physical properties and also possess a reasonable good electromagnetic interferences shielding effectiveness. These peroxide-vulcanised TPVs could be recycled up to 4 times without significant loss of their EMI SE, electrical and physical properties. As a result, they have good potential to be used for manufacturing any EMI shielding products, such as EMI shielding seals and gaskets.
    Type: Application
    Filed: October 18, 2016
    Publication date: December 6, 2018
    Applicant: LEMBAGA GETAH MALAYSIA
    Inventor: Kok Chong YONG
  • Patent number: 9991020
    Abstract: A rubber compound for the manufacture of electrostatic dissipative products comprising a rubber component derived from poly(butadiene-co-acrylonitrile), an electrically conductive filler component derived from sulfonic acid doped polyaniline, and an antioxidant, wherein the mixture comprising the rubber component, electrically conductive filler and antioxidant is vulcanized by exposure to electromagnetic radiation, and the vulcanized rubber compound possesses improved conductivity and tensile strength properties. A method for producing the rubber compound above comprising of providing a rubber component derived from poly(butadiene-co-acrylonitrile), an electrically conductive filler component derived from sulfonic acid doped polyaniline, and an antioxidant, then mixing the rubber component, electrically conductive filler and antioxidant together. The mixture is then molded into a suitable shape and then subjected to an electromagnetic radiation to stimulate vulcanization of the rubber mixture.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: June 5, 2018
    Assignee: Lembaga Getah Malaysia
    Inventor: Kok Chong Yong
  • Patent number: 9833034
    Abstract: Electrically conductive vulcanized epoxidized natural rubber [ENR]-carbon black blends can be produced by using either internal mechanical mixing method or open milling method. These two methods are commercially friendly due to their practicability and high production rate. The addition of vulcanization system, either sulfur or peroxide type does not affect the electrical properties of the vulcanized blends. All vulcanized blends prepared in this innovation show useful electrical properties with electrical volume resistances as low as the order of 101 ohms. All these vulcanized blends also exhibit good mechanical properties with tensile strengths up to 26.0 MPa and Dunlop rebound resiliencies of 14.0% (i.e. high damping property). The black color level of all these vulcanized blends is adjustable. As a result of good electrical and mechanical properties (especially high damping property), they have good potential to be used for antistatic footwear manufacturing and application.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: December 5, 2017
    Assignee: Lembaga Getah Malaysia
    Inventors: Yong Kok Chong, Ahmad Mohamad Asri
  • Publication number: 20170006957
    Abstract: Electrically conductive vulcanised epoxidised natural rubber [ENR]-carbon black blends can be produced by using either internal mechanical mixing method or open milling method. These two methods are commercially friendly due to their practicability and high production rate. The addition of vulcanisation system, either sulfur or peroxide type does not affect the electrical properties of the vulcanised blends. All vulcanized blends prepared in this innovation show useful electrical properties with electrical volume resistances as low as the order of 101 ohms. All these vulcanised blends also exhibit good mechanical properties with tensile strengths up to 26.0 MPa and Dunlop rebound resiliencies of 14.0% (i.e. high damping property). The black colour level of all these vulcanised blends is adjustable. As a result of good electrical and mechanical properties (especially high damping property), they have good potential to be used for antistatic footwear manufacturing and application.
    Type: Application
    Filed: September 21, 2016
    Publication date: January 12, 2017
    Applicant: LEMBAGA GETAH MALAYSIA
    Inventors: Yong KOK CHONG, Ahmad MOHAMAD ASRI
  • Publication number: 20170009029
    Abstract: Epoxidised natural rubber [ENR] based vulcanised-blends with two different types of electrical conductive filler (i.e. conductive grade-carbon black and intrinsically electrical conductive polymer) may be produced respectively by using either internal mechanical mixing method or open milling method or the combination of the two methods. All these ENR based vulcanised-blends show high consistent reversible electrical behaviour under the tensile straining process. They also exhibit useful mechanical properties with tensile strengths up to 28.0 MPa, elongations at break up to 800.0% and Dunlop rebound resiliencies up to 55.0%. The lower the rebound resilience, the better the damping property and shock absorption ability for the ENR based vulcanised-blends. As a result, these ENR based vulcanised-blends are ideal to be used for manufacturing flexible sensors that may correspond to the tensile straining process.
    Type: Application
    Filed: September 22, 2016
    Publication date: January 12, 2017
    Applicant: LEMBAGA GETAH MALAYSIA
    Inventor: Yong KOK CHONG
  • Publication number: 20150371727
    Abstract: A rubber compound for the manufacture of electrostatic dissipative products comprising a rubber component derived from poly(butadiene-co-acrylonitrile), an electrically conductive filler component derived from sulfonic acid doped polyaniline, and an antioxidant, wherein the mixture comprising the rubber component, electrically conductive filler and antioxidant is vulcanised by exposure to electromagnetic radiation, and the vulcanised rubber compound possesses improved conductivity and tensile strength properties. A method for producing the rubber compound above comprising of providing a rubber component derived from poly(butadiene-co-acrylonitrile), an electrically conductive filler component derived from sulfonic acid doped polyaniline, and an antioxidant, then mixing the rubber component, electrically conductive filler and antioxidant together. The mixture is then moulded into a suitable shape and then subjected to an electromagnetic radiation to stimulate vulcanisation of the rubber mixture.
    Type: Application
    Filed: January 2, 2014
    Publication date: December 24, 2015
    Inventor: Kok Chong YONG
  • Publication number: 20150087744
    Abstract: A rubber compound for the manufacture of antistatic tires used in vehicles comprising a rubber component derived from epoxidized natural rubber, a white filler component for reducing rolling resistance of said tire, an electrically conductive filler component, and a vulcanization agent. An antistatic tire for vehicles comprising a body and a tread wherein said tread is produced from said rubber compound above.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 26, 2015
    Applicant: Lembaga Getah Malaysia
    Inventors: Kok Chong Yong, Ahmad Kifli Che Aziz
  • Publication number: 20140194553
    Abstract: Electrically conductive vulcanised epoxidised natural rubber [ENR]-carbon black blends can be produced by using either internal mechanical mixing method or open milling method. These two methods are commercially friendly due to their practicability and high production rate. The addition of vulcanisation system, either sulfur or peroxide type does not affect the electrical properties of the vulcanised blends. All vulcanized blends prepared in this innovation show useful electrical properties with electrical volume resistances as low as the order of 101 ohms. All these vulcanised blends also exhibit good mechanical properties with tensile strengths up to 26.0 MPa and Dunlop rebound resiliencies of 14.0% (i.e. high damping property). The black colour level of all these vulcanised blends is adjustable. As a result of good electrical and mechanical properties (especially high damping property), they have good potential to be used for antistatic footwear manufacturing and application.
    Type: Application
    Filed: March 7, 2012
    Publication date: July 10, 2014
    Applicant: LEMBAGA GETAH MALAYSIA
    Inventors: Yong Kok Chong, Ahmad Mohamad Asri
  • Publication number: 20140117290
    Abstract: Epoxidised natural rubber [ENR] based vulcanised-blends with two different types of electrical conductive filler (i.e. conductive grade-carbon black and intrinsically electrical conductive polymer) may be produced respectively by using either internal mechanical mixing method or open milling method or the combination of the two methods. All these ENR based vulcanised-blends show high consistent reversible electrical behaviour under the tensile straining process. They also exhibit useful mechanical property ties with tensile strengths up to 28.0 MPa, elongations at break up to 800.0% and Dunlop rebound resiliencies up to 55.0%. The lower the rebound resilience, the better the damping property and shock absorption ability for the ENR based vulcanised-blends. As a result, these ENR based vulcanised-blends are ideal to be used for manufacturing flexible sensors that may correspond to the tensile straining process.
    Type: Application
    Filed: June 8, 2012
    Publication date: May 1, 2014
    Applicant: LEMBAGA GETAH MALAYSIA
    Inventor: Yong Kok Chong
  • Patent number: 8679375
    Abstract: A practical and environmentally-friendly method, i.e. the high temperature-mechanical mixing by using an internal mixing device and a two-roll open milling device is used to produce the carbon blacks-free electrically conductive sulfur-vulcanised rubber blends of solid poly(butadiene-co-acrylonitrile) and solid sulfonic acid doped polyaniline. The addition of sulfur vulcanization system does not affect the electrical properties of the vulcanised blends. All vulcanised blends prepared by using this method show useful electrical conductivities up to the order of 10?2 S/cm, good tensile strengths up to 18.0 MPa and colorable with the addition of a whitening agent. As a result, they have good potential to be used for manufacturing any antistatic products, electrostatic discharge or dissipative products and electromagnetic or radio frequency interferences shielding products.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: March 25, 2014
    Assignee: Malaysian Rubber Board
    Inventors: Kok Chong Yong, Che Su Mt Saad
  • Patent number: 8470210
    Abstract: A practical and environmentally-friendly method, i.e. the high temperature-mechanical mixing by using an internal mixing device and a two-roll open milling device is used to produce the carbon blacks-free electrically conductive sulfur-vulcanised rubber blends of solid poly(butadiene-co-acrylonitrile) and solid sulfonic acid doped polyaniline. The addition of sulfur vulcanisation system does not affect the electrical properties of the vulcanised blends. All vulcanised blends prepared by using this method show useful electrical conductivities up to the order of 10?2 S/cm, good tensile strengths up to 18.0 MPa and colourable with the addition of a whitening agent. As a result, they have good potential to be used for manufacturing any antistatic products, electrostatic discharge or dissipative products and electromagnetic or radio frequency interferences shielding products.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: June 25, 2013
    Assignee: Malaysian Rubber Board
    Inventors: Kok Chong Yong, Che Su Mt Saad
  • Publication number: 20130024340
    Abstract: An alternate currency futures contract or other type of derivative can be denominated in a primary currency. Margin account adjustments for mark-to-market (MTM) settlements, final settlements, and/or other cash flows associated with the contract can initially be calculated based on the primary currency, and then be converted to an alternate, secondary currency. This conversion can occur unconditionally and without requiring a prior unavailability determination.
    Type: Application
    Filed: October 31, 2011
    Publication date: January 24, 2013
    Applicant: CHICAGO MERCANTILE EXCHANGE INC.
    Inventors: Richard Co, Steven Youngren, Kok Chong Lam, Scott Brusso, John Labuszewski
  • Publication number: 20120286213
    Abstract: A practical and environmentally-friendly method, i.e. the high temperature-mechanical mixing by using an internal mixing device and a two-roll open milling device is used to produce the carbon blacks-free electrically conductive sulfur-vulcanised rubber blends of solid poly(butadiene-co-acrylonitrile) and solid sulfonic acid doped polyaniline. The addition of sulfur vulcanisation system does not affect the electrical properties of the vulcanised blends. All vulcanised blends prepared by using this method show useful electrical conductivities up to the order of 10?2 S/cm, good tensile strengths up to 18.0 MPa and colourable with the addition of a whitening agent. As a result, they have good potential to be used for manufacturing any antistatic products, electrostatic discharge or dissipative products and electromagnetic or radio frequency interferences shielding products.
    Type: Application
    Filed: July 5, 2012
    Publication date: November 15, 2012
    Applicant: MALAYSIAN RUBBER BOARD
    Inventors: Kok Chong YONG, Che Su MT SAAD
  • Publication number: 20100320427
    Abstract: A practical and environmentally-friendly method, i.e. the high temperature-mechanical mixing by using an internal mixing device and a two-roll open milling device is used to produce the carbon blacks-free electrically conductive sulfur-vulcanised rubber blends of solid poly(butadiene-co-acrylonitrile) and solid sulfonic acid doped polyaniline. The addition of sulfur vulcanisation system does not affect the electrical properties of the vulcanised blends. All vulcanised blends prepared by using this method show useful electrical conductivities up to the order of 10?2 S/cm, good tensile strengths up to 18.0 MPa and colourable with the addition of a whitening agent. As a result, they have good potential to be used for manufacturing any antistatic products, electrostatic discharge or dissipative products and electromagnetic or radio frequency interferences shielding products.
    Type: Application
    Filed: April 14, 2010
    Publication date: December 23, 2010
    Applicant: MALAYSIAN RUBBER BOARD
    Inventors: Kok Chong YONG, Che Su MT SAAD
  • Patent number: D715943
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 21, 2014
    Assignee: Shanghai United Imaging Healthcare Co., Ltd.
    Inventors: Jun Zhang, Anthony Oh Kok Chong
  • Patent number: D715944
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 21, 2014
    Assignee: Shanghai United Imaging Healthcare Co., Ltd.
    Inventors: Chungjiang Yao, Long Li, Jun Zhang, Anthony Oh Kok Chong