Patents by Inventor Zhijun Jia

Zhijun Jia 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).

  • Publication number: 20240107552
    Abstract: A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.
    Type: Application
    Filed: December 6, 2023
    Publication date: March 28, 2024
    Applicant: BlackBerry Limited
    Inventors: Hua XU, Yongkang JIA, Zhijun CAI, Youn Hyoung HEO, Andrew Mark EARNSHAW, Mo-Han FONG, Sean Michael McBEATH, Robert Mark HARRISON
  • Patent number: 11747088
    Abstract: A compact heat exchanger is provided, in which multiple streams can flow within the same layer or layers, and different fluids may flow in alternating channels within the same layer as well as flowing in alternating layers. Having fluids in alternating channels—as compared to only alternating layers within the same layer—increases the direct surface area between the fluids (the primary surface area) for heat transfer, thereby increasing the rate and efficiency of heat transfer. Methods of making and using the heat exchanger are also provided.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: September 5, 2023
    Assignee: CompRex, LLC
    Inventors: Hani Ahmed Gadalla, Zhijun Jia, Thomas Justin Parlow
  • Publication number: 20200284521
    Abstract: A compact heat exchanger is provided, in which multiple streams can flow within the same layer or layers, and different fluids may flow in alternating channels within the same layer as well as flowing in alternating layers. Having fluids in alternating channels—as compared to only alternating layers within the same layer—increases the direct surface area between the fluids (the primary surface area) for heat transfer, thereby increasing the rate and efficiency of heat transfer. Methods of making and using the heat exchanger are also provided.
    Type: Application
    Filed: November 21, 2018
    Publication date: September 10, 2020
    Applicant: CompRex, LLC
    Inventors: Hani Ahmed GADALLA, Zhijun JIA, Thomas Justin PARLOW
  • Publication number: 20120076704
    Abstract: A system for producing hydrogen features a reactor including a reaction channel adapted to receive a reaction stream including a mixture of supercritical water and a hydrocarbon fuel. A catalyst is positioned in the reaction channel so that a product stream containing hydrogen is produced by a reaction in the reaction channel when the mixture is exposed to the catalyst; wherein the catalyst contains a catalytically active metal and a promoter in a metal format, selected from the group consisting of potassium, sodium, rubidium, lithium, cesium, beryllium, magnesium, calcium, strontium, and barium.
    Type: Application
    Filed: December 4, 2011
    Publication date: March 29, 2012
    Applicant: CHART, INC.
    Inventors: ZHIJUN JIA, Mark Wood, Clay Thiele
  • Publication number: 20120016140
    Abstract: A device for processing fluids includes a number of fin layers with a number of plates separating the fin layers so that a fluid flow passage is defined through each fin layer. A first fluid inlet is in communication with a first end portion of the fluid flow passage, a first fluid outlet is in communication with a second end portion of the fluid flow passage, a second fluid inlet is in communication with the second end portion of the fluid flow passage and a second fluid outlet in communication with the first end portion of the fluid flow passage. The fluid flowing through the second inlet is subjected to a shearing action by the fin layers so that mass transfer to the fluid flowing through the first inlet occurs. The device may be used for both liquid-liquid processes, such as extraction, or gas-liquid processes, such as adsorption, absorption or desorption and reactions.
    Type: Application
    Filed: July 11, 2011
    Publication date: January 19, 2012
    Inventors: Zhijun JIA, Lawrence Andrew Stryker, Douglas Eugene Decker
  • Patent number: 8075645
    Abstract: A system for producing hydrogen features a reactor including a reaction channel adapted to receive a reaction stream including a mixture of supercritical water and a hydrocarbon fuel. A catalyst is positioned in the reaction channel so that a product stream containing hydrogen is produced by a reaction in the reaction channel when the mixture is exposed to the catalyst; wherein the catalyst contains a catalytically active metal and a promoter in a metal format, selected from the group consisting of potassium, sodium, rubidium, lithium, cesium, beryllium, magnesium, calcium, strontium, and barium.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: December 13, 2011
    Assignee: Chart Inc.
    Inventors: Zhijun Jia, Mark Wood, Clay Thiele
  • Patent number: 7998345
    Abstract: A device for processing fluids includes a number of fin layers with a number of plates separating the fin layers so that a fluid flow passage is defined through each fin layer. A first fluid inlet is in communication with a first end portion of the fluid flow passage, a first fluid outlet is in communication with a second end portion of the fluid flow passage, a second fluid inlet is in communication with the second end portion of the fluid flow passage and a second fluid outlet in communication with the first end portion of the fluid flow passage. The fluid flowing through the second inlet is subjected to a shearing action by the fin layers so that mass transfer to the fluid flowing through the first inlet occurs. The device may be used for both liquid-liquid processes, such as extraction, or gas-liquid processes, such as adsorption, absorption or desorption and reactions.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 16, 2011
    Assignee: Chart Inc.
    Inventors: Zhijun Jia, Lawrence Andrew Stryker, Douglas Eugene Decker
  • Patent number: 7789920
    Abstract: A reactor, system and method for producing hydrogen features a reactor containing a heating stream channel and a hydrogen channel with a reaction channel positioned there between. A heat transfer sheet separates the heating stream channel and the reaction channel and a porous support plate separates the reaction channel and the hydrogen channel. A membrane constructed from palladium, vanadium, copper or alloys thereof covers the porous support plate. The heating stream channel receives a heating stream so that heat is provided to the reaction channel through the heat transfer sheet. A catalyst is positioned in the reaction channel and the reaction channel receives a reaction stream including a mixture of supercritical water and a hydrocarbon fuel so that hydrogen is produced in the reaction channel and is passed through the membrane into the hydrogen channel.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: September 7, 2010
    Assignee: Chart Industries, Inc.
    Inventors: Zhijun Jia, Lawrence A. Stryker, Douglas Decker
  • Publication number: 20090257928
    Abstract: A system for producing hydrogen features a reactor including a reaction channel adapted to receive a reaction stream including a mixture of supercritical water and a hydrocarbon fuel. A catalyst is positioned in the reaction channel so that a product stream containing hydrogen is produced by a reaction in the reaction channel when the mixture is exposed to the catalyst; wherein the catalyst contains a catalytically active metal and a promoter in a metal format, selected from the group consisting of potassium, sodium, rubidium, lithium, cesium, beryllium, magnesium, calcium, strontium, and barium.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 15, 2009
    Inventors: Zhijun Jia, Mark Wood, Clay Thiele
  • Publication number: 20090014385
    Abstract: A device for processing fluids includes a number of fin layers with a number of plates separating the fin layers so that a fluid flow passage is defined through each fin layer. A first fluid inlet is in communication with a first end portion of the fluid flow passage, a first fluid outlet is in communication with a second end portion of the fluid flow passage, a second fluid inlet is in communication with the second end portion of the fluid flow passage and a second fluid outlet in communication with the first end portion of the fluid flow passage. The fluid flowing through the second inlet is subjected to a shearing action by the fin layers so that mass transfer to the fluid flowing through the first inlet occurs. The device may be used for both liquid-liquid processes, such as extraction, or gas-liquid processes, such as adsorption, absorption or desorption and reactions.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Inventors: ZHIJUN JIA, Lawrence Andrew Stryker, Douglas Eugene Decker
  • Publication number: 20080187907
    Abstract: An apparatus and method for detecting a biological material, such as bacterial spores (e.g. Anthrax) which reacts non-volatile biomarker precursors to volatile precursors by heating the biological material in the presence of a catalyst.
    Type: Application
    Filed: February 25, 2005
    Publication date: August 7, 2008
    Inventors: Calvin H. Bartholomew, Zhijun Jia, Phillip R. Smith, Aaron Nicholas Nackos, Milton L. Lee, Edgar D. Lee
  • Publication number: 20070234640
    Abstract: A reactor, system and method for producing hydrogen features a reactor containing a heating stream channel and a hydrogen channel with a reaction channel positioned there between. A heat transfer sheet separates the heating stream channel and the reaction channel and a porous support plate separates the reaction channel and the hydrogen channel. A membrane constructed from palladium, vanadium, copper or alloys thereof covers the porous support plate. The heating stream channel receives a heating stream so that heat is provided to the reaction channel through the heat transfer sheet. A catalyst is positioned in the reaction channel and the reaction channel receives a reaction stream including a mixture of supercritical water and a hydrocarbon fuel so that hydrogen is produced in the reaction channel and is passed through the membrane into the hydrogen channel.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 11, 2007
    Inventors: Zhijun Jia, Laurence Stryker, Douglas Decker