Patents by Inventor Minghui Du
Minghui Du 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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Patent number: 12042091Abstract: An electric roasting machine includes a housing defining a cavity having an upper opening, a heating device installed in the cavity, and a grill located at the opening of the cavity. The grill includes a carrying part extending into the cavity and located in a region covered by thermal radiation of the heating device.Type: GrantFiled: July 4, 2017Date of Patent: July 23, 2024Assignee: FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO., LTD.Inventors: Jianrong Du, Guoyao Zhao, Minghui Du, Jiequan Huang, Yan She, Yuhua Huang, Pingying Han, Xiubao Lin, Wenxiu Zhou, Haitao Li, Gang Wang
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Publication number: 20220346595Abstract: The present application discloses an electric roasting machine, including an outer housing, an inner housing and a heating device which are accommodated in the outer housing, the inner housing is defined between the outer housing and the heating device, and the inner housing cooperates with the heating device to form a heat insulating cavity. The electric roasting machine of the present application has the advantages of good heat insulation effect, less heat loss and high heat utilization rate.Type: ApplicationFiled: July 18, 2022Publication date: November 3, 2022Inventors: Jianrong DU, Guoyao ZHAO, Minghui DU, Jiequan HUANG, Yan SHE, Yuhua HUANG, Pingying HAN, Xiubao LIN, Wenxiu ZHOU, Haitao LI, Gang WANG
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Patent number: 11389025Abstract: An electric roasting machine includes an outer housing, a heating device accommodated in the outer housing, and an inner housing between the outer housing and the heating device. A heat insulating cavity is formed between the inner housing and the heating device. A heat dissipating passage is formed between the outer housing and the inner housing.Type: GrantFiled: July 4, 2017Date of Patent: July 19, 2022Assignee: FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO., LTD.Inventors: Jianrong Du, Guoyao Zhao, Minghui Du, Jiequan Huang, Yan She, Yuhua Huang, Pingying Han, Xiubao Lin, Wenxiu Zhou, Haitao Li, Gang Wang
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Patent number: 10492959Abstract: A method for indicating and alarming about wet level of a diaper involves using a humidity sensor to perform relative humidity detection on the diaper, when the detected relative humidity is below 50% rh˜60% rh, showing the diaper's wet level as 0% rh, and when the detected relative humidity is 85% rh˜95% rh or more, showing the diaper's wet level as 100% rh, wherein functional conversion is performed to convert the relative humidity ranging between 60% rh and 85% rh˜95% rh proportionally into the diaper's wet level between 0% rh and 100% rh.Type: GrantFiled: May 7, 2017Date of Patent: December 3, 2019Assignee: DONGGUAN SOUTHSTAR ELECTRONICS LIMITEDInventors: Jun Yi, Zhihua He, Fangyi Cai, Minghui Du, Weimin Chen, Zhantu Zheng, Jianchao Xu
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Publication number: 20190254475Abstract: An electric roasting machine includes an outer housing, a heating device accommodated in the outer housing, and an inner housing between the outer housing and the heating device. A heat insulating cavity is formed between the inner housing and the heating device. A heat dissipating passage is formed between the outer housing and the inner housing.Type: ApplicationFiled: July 4, 2017Publication date: August 22, 2019Inventors: Jianrong DU, Guoyao ZHAO, Minghui DU, Jiequan HUANG, Yan SHE, Yuhua HUANG, Pingying HAN, Xiubao LIN, Wenxiu ZHOU, Haitao LI, Gang WANG
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Publication number: 20190246836Abstract: An electric roasting machine includes a housing defining a cavity having an upper opening, a heating device installed in the cavity, and a grill located at the opening of the cavity. The grill includes a carrying part extending into the cavity and located in a region covered by thermal radiation of the heating device.Type: ApplicationFiled: July 4, 2017Publication date: August 15, 2019Applicant: FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO., LTD.Inventors: Jianrong DU, Guoyao ZHAO, Minghui DU, Jiequan HUANG, Yan SHE, Yuhua HUANG, Pingying HAN, Xiubao LIN, Wenxiu ZHOU, Haitao LI, Gang WANG
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Publication number: 20180318147Abstract: A method for detecting an infant's urination includes: determining that Condition 1 is satisfied if a relative humidity value collected lastly is greater than humidity values of previous N times and is 1% rh˜3% rh greater than a minimum of the previous N times; determining that Condition 2 is satisfied and the first urination has happened if humidity values collected in continuous M times satisfy Condition 1, and the humidity value collected in the Mth time is 3% rh˜6% rh greater than a minimum of the previous N+M times; starting to detect a second urination when humidity variation becomes steady; and determining that the second urination has happened if a time for humidity to increase 0.1% rh is less than a half of a previous time for humidity to increase 0.1% rh, and a next time for humidity to increase 0.1% rh is also less than a half of the previous time.Type: ApplicationFiled: May 7, 2017Publication date: November 8, 2018Inventors: Jun Yi, Zhihua He, Fangyi Cai, Minghui Du, Weimin Chen, Zhantu Zheng, Jianchao Xu
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Publication number: 20180318146Abstract: A method for indicating and alarming about wet level of a diaper involves using a humidity sensor to perform relative humidity detection on the diaper, when the detected relative humidity is below 50% rh˜60% rh, showing the diaper's wet level as 0% rh, and when the detected relative humidity is 85% rh˜95% rh or more, showing the diaper's wet level as 100% rh, wherein functional conversion is performed to convert the relative humidity ranging between 60% rh and 85% rh˜95% rh proportionally into the diaper's wet level between 0% rh and 100% rh.Type: ApplicationFiled: May 7, 2017Publication date: November 8, 2018Inventors: Jun Yi, Zhihua He, Fangyi Cai, Minghui Du, Weimin Chen, Zhantu Zheng, Jianchao Xu
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Patent number: 10039675Abstract: A retaining device for retaining a small-sized detective sensor includes a flexible rubber body. The flexible rubber body includes a first retaining portion, a first connecting portion, a main body portion, a second connecting portion, and a second retaining portion which are connected in sequence. An inner side of the first retaining portion and an inner side of the second retaining portion are provided with primary Velcro retaining straps. An inner side of the main body portion is formed with a recess for installing the small-sized detective sensor.Type: GrantFiled: April 26, 2017Date of Patent: August 7, 2018Assignee: DONGGUAN SOUTHSTAR ELECTRONICS LIMITEDInventors: Fangyi Cai, Jun Yi, Minghui Du, Hongjun Yan
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Patent number: 7816563Abstract: Improved methods of preparing hypocrellin B from 4,9-dihydroxy-3,10-perylenequinones are described.Type: GrantFiled: December 8, 2009Date of Patent: October 19, 2010Assignee: Alberta Innovates-Technology FuturesInventors: Minghui Du, Darol Maunder
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Patent number: 7605255Abstract: A synthetic procedure for the preparation of non-animal based lactose from 4?-epimeric analogue of lactose by use of orthogonal protecting groups, formation of a suitable leaving group at the 4?-position, stereochemical inversion by nucleophilic attack and deprotection.Type: GrantFiled: June 29, 2006Date of Patent: October 20, 2009Assignee: Alberta Research Council Inc.Inventors: Donna Day, Minghui Du, Roberto Mendez, Darol Maunder
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Publication number: 20080004438Abstract: A synthetic procedure for the preparation of non-animal based lactose from 4?-epimeric analogue of lactose by use of orthogonal protecting groups, formation of a suitable leaving group at the 4?-position, stereochemical inversion by nucleophilic attack and deprotection.Type: ApplicationFiled: June 29, 2006Publication date: January 3, 2008Applicant: ALBERTA RESEARCH COUNCIL INC.Inventors: Donna DAY, Minghui DU, Roberto MENDEZ, Darol MAUNDER
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Patent number: 6420552Abstract: The present invention provides improved method of preparing a 4-O-alkyl chromogenic ketoside of N-acetylneuraminic acid (Neu5Ac) and a 7-O-alkyl chromogenic ketoside of N-acetylneuraminic acid (Neu5Ac) for use in the selective detection of various influenza viruses and parainfluenza viruses. The ketosides are substrates that are selectively cleaved by a neuraminidase on the virus to be detected, but not by neuraminidases found on other viruses or on bacteria, or on the cells of the host. The syntheses are efficient and provide large quantities of the ketosides for commercial development. The synthesis includes a step of alkylating the 4- or 7-hydroxyl groups of a protected alkyl ester alkyl ketoside derivative of Neu5Ac by processes that include contacting the derivative with a composition comprising an alkyl halide to form a 4- or a 7-O-alkyl protected alkyl ester alkyl ketoside derivative of Neu5Ac.Type: GrantFiled: August 29, 2000Date of Patent: July 16, 2002Assignee: Zymetx, Inc.Inventors: Om Srivastava, Geeta Srivastava, Minghui Du, Ole Hingsgaul, David R. Bundle
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Patent number: 6303764Abstract: The present invention provides an improved method of preparing a 4,7-di-O-alkyl chromogenic ketoside of N-acetylneuraminic acid (Neu5Ac) for use in detecting influenza virus types A and B. The ketosides are substrates that are selectively cleaved by a neuraminidase on influenza virus, but not be neuraminidases found on other viruses or on bacteria. The synthesis is efficient and provides large quantities of the ketoside for commercial development. The synthesis includes a step of alkylating the 4- and 7-hydroxyl groups of a protected alkyl ester alkyl ketoside derivative of Neu5Ac by a process that comprises contacting the derivative with a composition comprising an alkyl halide to form a 4,7-di-O-alkyl protected alkyl ester alkyl ketoside derivative of Neu5Ac. The synthesis alternatively includes protecting the 8- and 9-hydroxyl groups of an alkyl ester alkyl ketoside derivative of Neu5Ac by forming an 8,9-epoxide protected alkyl ester alkyl ketoside derivative of Neu5Ac.Type: GrantFiled: September 24, 1999Date of Patent: October 16, 2001Assignees: Zymetx, Inc., Palladin Opportunity Fund, LLC, Halifex Fund, L.P.Inventors: Om Srivastava, Geeta Srivastava, Minghui Du, Ole Hindsgaul, David R. Bundle, Avraham Liav
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Patent number: 5874411Abstract: Disclosed are novel oligosaccharide glycosides having mammalian immunosuppressive and tolerogenic properties, pharmaceutical compositions containing such oligosaccharide glycosides and to methods of using such oligosaccharide glycosides to modulate cell-mediated immune responses in a mammal.Type: GrantFiled: November 13, 1996Date of Patent: February 23, 1999Assignee: Glycomed IncorporatedInventors: Om P. Srivastava, Geeta Srivastava, Roman Szweda, David R. Bundle, Ole Hindsgaul, H. Rizk Hanna, Kevin Holme, Frank W. Barresi, Minghui Du
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Patent number: D831510Type: GrantFiled: May 11, 2017Date of Patent: October 23, 2018Assignee: DONGGUAN SOUTHSTAR ELECTRONICS LIMITEDInventors: Jun Yi, Hongjun Yan, Fangyi Cai, Xuming Du, Minghui Du