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).

  • Patent number: 12042091
    Abstract: 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: Grant
    Filed: July 4, 2017
    Date of Patent: July 23, 2024
    Assignee: 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
  • Publication number: 20220346595
    Abstract: 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: Application
    Filed: July 18, 2022
    Publication date: November 3, 2022
    Inventors: Jianrong DU, Guoyao ZHAO, Minghui DU, Jiequan HUANG, Yan SHE, Yuhua HUANG, Pingying HAN, Xiubao LIN, Wenxiu ZHOU, Haitao LI, Gang WANG
  • Patent number: 11389025
    Abstract: 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: Grant
    Filed: July 4, 2017
    Date of Patent: July 19, 2022
    Assignee: 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
  • Patent number: 10492959
    Abstract: 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: Grant
    Filed: May 7, 2017
    Date of Patent: December 3, 2019
    Assignee: DONGGUAN SOUTHSTAR ELECTRONICS LIMITED
    Inventors: Jun Yi, Zhihua He, Fangyi Cai, Minghui Du, Weimin Chen, Zhantu Zheng, Jianchao Xu
  • Publication number: 20190254475
    Abstract: 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: Application
    Filed: July 4, 2017
    Publication date: August 22, 2019
    Inventors: Jianrong DU, Guoyao ZHAO, Minghui DU, Jiequan HUANG, Yan SHE, Yuhua HUANG, Pingying HAN, Xiubao LIN, Wenxiu ZHOU, Haitao LI, Gang WANG
  • Publication number: 20190246836
    Abstract: 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: Application
    Filed: July 4, 2017
    Publication date: August 15, 2019
    Applicant: 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
  • Publication number: 20180318147
    Abstract: 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: Application
    Filed: May 7, 2017
    Publication date: November 8, 2018
    Inventors: Jun Yi, Zhihua He, Fangyi Cai, Minghui Du, Weimin Chen, Zhantu Zheng, Jianchao Xu
  • Publication number: 20180318146
    Abstract: 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: Application
    Filed: May 7, 2017
    Publication date: November 8, 2018
    Inventors: Jun Yi, Zhihua He, Fangyi Cai, Minghui Du, Weimin Chen, Zhantu Zheng, Jianchao Xu
  • Patent number: 10039675
    Abstract: 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: Grant
    Filed: April 26, 2017
    Date of Patent: August 7, 2018
    Assignee: DONGGUAN SOUTHSTAR ELECTRONICS LIMITED
    Inventors: Fangyi Cai, Jun Yi, Minghui Du, Hongjun Yan
  • Patent number: 7816563
    Abstract: Improved methods of preparing hypocrellin B from 4,9-dihydroxy-3,10-perylenequinones are described.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: October 19, 2010
    Assignee: Alberta Innovates-Technology Futures
    Inventors: Minghui Du, Darol Maunder
  • Patent number: 7605255
    Abstract: 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: Grant
    Filed: June 29, 2006
    Date of Patent: October 20, 2009
    Assignee: Alberta Research Council Inc.
    Inventors: Donna Day, Minghui Du, Roberto Mendez, Darol Maunder
  • Publication number: 20080004438
    Abstract: 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: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: ALBERTA RESEARCH COUNCIL INC.
    Inventors: Donna DAY, Minghui DU, Roberto MENDEZ, Darol MAUNDER
  • Patent number: 6420552
    Abstract: 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: Grant
    Filed: August 29, 2000
    Date of Patent: July 16, 2002
    Assignee: Zymetx, Inc.
    Inventors: Om Srivastava, Geeta Srivastava, Minghui Du, Ole Hingsgaul, David R. Bundle
  • Patent number: 6303764
    Abstract: 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: Grant
    Filed: September 24, 1999
    Date of Patent: October 16, 2001
    Assignees: Zymetx, Inc., Palladin Opportunity Fund, LLC, Halifex Fund, L.P.
    Inventors: Om Srivastava, Geeta Srivastava, Minghui Du, Ole Hindsgaul, David R. Bundle, Avraham Liav
  • Patent number: 5874411
    Abstract: 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: Grant
    Filed: November 13, 1996
    Date of Patent: February 23, 1999
    Assignee: Glycomed Incorporated
    Inventors: Om P. Srivastava, Geeta Srivastava, Roman Szweda, David R. Bundle, Ole Hindsgaul, H. Rizk Hanna, Kevin Holme, Frank W. Barresi, Minghui Du
  • Patent number: D831510
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: October 23, 2018
    Assignee: DONGGUAN SOUTHSTAR ELECTRONICS LIMITED
    Inventors: Jun Yi, Hongjun Yan, Fangyi Cai, Xuming Du, Minghui Du