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).
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Publication number: 20240107552Abstract: 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: ApplicationFiled: December 6, 2023Publication date: March 28, 2024Applicant: BlackBerry LimitedInventors: Hua XU, Yongkang JIA, Zhijun CAI, Youn Hyoung HEO, Andrew Mark EARNSHAW, Mo-Han FONG, Sean Michael McBEATH, Robert Mark HARRISON
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Patent number: 11747088Abstract: 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: GrantFiled: November 21, 2018Date of Patent: September 5, 2023Assignee: CompRex, LLCInventors: Hani Ahmed Gadalla, Zhijun Jia, Thomas Justin Parlow
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Publication number: 20200284521Abstract: 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: ApplicationFiled: November 21, 2018Publication date: September 10, 2020Applicant: CompRex, LLCInventors: Hani Ahmed GADALLA, Zhijun JIA, Thomas Justin PARLOW
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Publication number: 20120076704Abstract: 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: ApplicationFiled: December 4, 2011Publication date: March 29, 2012Applicant: CHART, INC.Inventors: ZHIJUN JIA, Mark Wood, Clay Thiele
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Publication number: 20120016140Abstract: 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: ApplicationFiled: July 11, 2011Publication date: January 19, 2012Inventors: Zhijun JIA, Lawrence Andrew Stryker, Douglas Eugene Decker
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Patent number: 8075645Abstract: 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: GrantFiled: April 8, 2009Date of Patent: December 13, 2011Assignee: Chart Inc.Inventors: Zhijun Jia, Mark Wood, Clay Thiele
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Patent number: 7998345Abstract: 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: GrantFiled: July 9, 2008Date of Patent: August 16, 2011Assignee: Chart Inc.Inventors: Zhijun Jia, Lawrence Andrew Stryker, Douglas Eugene Decker
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Patent number: 7789920Abstract: 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: GrantFiled: April 9, 2007Date of Patent: September 7, 2010Assignee: Chart Industries, Inc.Inventors: Zhijun Jia, Lawrence A. Stryker, Douglas Decker
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Publication number: 20090257928Abstract: 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: ApplicationFiled: April 8, 2009Publication date: October 15, 2009Inventors: Zhijun Jia, Mark Wood, Clay Thiele
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Publication number: 20090014385Abstract: 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: ApplicationFiled: July 9, 2008Publication date: January 15, 2009Inventors: ZHIJUN JIA, Lawrence Andrew Stryker, Douglas Eugene Decker
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Publication number: 20080187907Abstract: 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: ApplicationFiled: February 25, 2005Publication date: August 7, 2008Inventors: Calvin H. Bartholomew, Zhijun Jia, Phillip R. Smith, Aaron Nicholas Nackos, Milton L. Lee, Edgar D. Lee
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Publication number: 20070234640Abstract: 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: ApplicationFiled: April 9, 2007Publication date: October 11, 2007Inventors: Zhijun Jia, Laurence Stryker, Douglas Decker