Patents by Inventor Ka Yun CHAN
Ka Yun CHAN 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: 20200036207Abstract: A battery module including a rechargeable battery, a charging circuit for the rechargeable battery; and a switch adapted to connect the rechargeable battery to the charging circuit, or to output terminals of the battery system. The switch is adapted to change its switching status by a voltage applied to input terminals of the charging circuit. By de-centralizing the control of the switches in multiple battery modules, adding or removing a battery module from the group of battery modules becomes easy.Type: ApplicationFiled: July 30, 2018Publication date: January 30, 2020Applicant: Hi-Cooler Company LimitedInventors: Ching Wong, Ka Yun Chan
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Patent number: 9726389Abstract: A portable evaporative cooling apparatus includes a primary passage for delivering a primary air stream to an induction nozzle. A secondary passage that is substantially unobstructed extends from an ambient air inlet to the induction nozzle. A secondary air stream is induced through the secondary passage by the primary air stream and the primary and secondary air streams are ejected from the induction nozzle into the ambient air. An atomizer in the secondary passage, proximate the ambient air inlet, emits a fine spray of water into the secondary air stream. The mixing of the water spray and induced air flow is performed inside the induction nozzle, which also provides a physical and thermal barrier, and makes a completely cooled air stream available immediately outside the user, so the apparatuses may be placed close to the user's face, for example.Type: GrantFiled: July 24, 2015Date of Patent: August 8, 2017Assignee: LEDATRON COMPANY LIMITEDInventor: Ka Yun Chan
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Publication number: 20170023268Abstract: A portable evaporative cooling apparatus includes a primary passage for delivering a primary air stream to an induction nozzle. A secondary passage that is substantially unobstructed extends from an ambient air inlet to the induction nozzle. A secondary air stream is induced through the secondary passage by the primary air stream and the primary and secondary air streams are ejected from the induction nozzle into the ambient air. An atomiser in the secondary passage, proximate the ambient air inlet, emits a fine spray of water into the secondary air stream. The mixing of the water spray and induced air flow is performed inside the induction nozzle, which also provides a physical and thermal barrier, and makes a completely cooled air stream available immediately outside the user, so the apparatuses may be placed close to the user's face, for example.Type: ApplicationFiled: July 24, 2015Publication date: January 26, 2017Inventor: Ka Yun Chan
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Publication number: 20130094980Abstract: A hand-held electric fan includes a housing, an air inlet configured on one side of the housing, an air outlet configured on another side of the housing, fan blades configured in said housing, a motor for driving rotation of the fan blades, wherein the air inlet and air outlet have an included angle of 20˜160 degrees. The hand-held electric fan according to the present invention can be held by a user conveniently, such that the inflow and outflow of air are not interfered by the user's hand holding the fan during use.Type: ApplicationFiled: July 13, 2012Publication date: April 18, 2013Inventor: Ka Yun CHAN
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Patent number: 8198070Abstract: Apparatus and methods are described for detecting target DNA in a biological sample using capture probes and electrically-assisted hybridization. The reaction cell is formed with an attachment surface of aluminum oxide for better thermal and physical properties, and the aluminum oxide surface is coated with anti-DIG antibody to provide a convenient attachment layer for the capture probes allowing their correct orientation, while the capture probes are formed with a DIG-label so that they attach to the surface of the cell through an anti-DIG/DIG linkage.Type: GrantFiled: May 24, 2010Date of Patent: June 12, 2012Assignee: Hai Kang Life Corporation LimitedInventors: Cheung Hoi Yu, Lok-Ting Lau, Selma Sau Wah Lin, Duncan Ka-Yun Chan
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Patent number: 8110669Abstract: Apparatus and methods are described for detecting target DNA in a biological sample using capture probes and electrically-assisted hybridization. The reaction cell is formed with an attachment surface of aluminum oxide for better thermal and physical properties, and the aluminum oxide surface is coated with anti-DIG antibody to provide a convenient attachment layer for the capture probes allowing their correct orientation, while the capture probes are formed with a DIG-label so that they attach to the surface of the cell through an anti-DIG/DIG linkage.Type: GrantFiled: March 16, 2011Date of Patent: February 7, 2012Assignee: Hai Kang Life Corporation LimitedInventors: Cheung Hoi Yu, Lok-Ting Lau, Selma Sau Wah Lin, Duncan Ka-Yun Chan
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Publication number: 20110165665Abstract: Apparatus and methods are described for detecting target DNA in a biological sample using capture probes and electrically-assisted hybridization. The reaction cell is formed with an attachment surface of aluminum oxide for better thermal and physical properties, and the aluminum oxide surface is coated with anti-DIG antibody to provide a convenient attachment layer for the capture probes allowing their correct orientation, while the capture probes are formed with a DIG-label so that they attach to the surface of the cell through an anti-DIG/DIG linkage.Type: ApplicationFiled: March 16, 2011Publication date: July 7, 2011Applicant: HAI KANG LIFE CORPORATION LIMITEDInventors: Cheung Hoi YU, Lok-Ting Lau, Selma Sau Wah Lin, Duncan Ka-Yun Chan
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Publication number: 20100233721Abstract: Apparatus and methods are described for detecting target DNA in a biological sample using capture probes and electrically-assisted hybridization. The reaction cell is formed with an attachment surface of aluminum oxide for better thermal and physical properties, and the aluminum oxide surface is coated with anti-DIG antibody to provide a convenient attachment layer for the capture probes allowing their correct orientation, while the capture probes are formed with a DIG-label so that they attach to the surface of the cell through an anti-DIG/DIG linkage.Type: ApplicationFiled: May 24, 2010Publication date: September 16, 2010Applicant: HAI KANG LIFE CORPORATION LIMITEDInventors: Cheung Hoi Yu, Lok-Ting Lau, Selma Sau Wah Lin, Duncan Ka-Yun Chan
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Patent number: 7749705Abstract: Apparatus and methods are described for detecting target DNA in a biological sample using capture probes and electrically-assisted hybridization. The reaction cell is formed with an attachment surface of aluminum oxide for better thermal and physical properties, and the aluminum oxide surface is coated with anti-DIG antibody to provide a convenient attachment layer for the capture probes allowing their correct orientation, while the capture probes are formed with a DIG-label so that they attach to the surface of the cell through an anti-DIG/DIG linkage.Type: GrantFiled: November 15, 2006Date of Patent: July 6, 2010Assignee: Hai Kang Life Corporation LimitedInventors: Cheung Hoi Yu, Lok-Ting Lau, Selma Sau Wah Lin, Duncan Ka-Yun Chan
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Patent number: 7153687Abstract: Apparatus and methods are described for detecting target DNA in a biological sample using capture probes and electrically-assisted hybridization. The reaction cell is formed with an attachment surface of aluminum oxide for better thermal and physical properties, and the aluminum oxide surface is coated with anti-DIG antibody to provide a convenient attachment layer for the capture probes allowing their correct orientation, while the capture probes are formed with a DIG-label so that they attach to the surface of the cell through an anti-DIG/DIG linkage.Type: GrantFiled: August 13, 2002Date of Patent: December 26, 2006Assignee: Hong Kong DNA Chips LimitedInventors: Cheung Hoi Yu, Lok-Ting Lau, Selma Sau Wah Lin, Duncan Ka-Yun Chan