Patents by Inventor Keping Wang

Keping Wang 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: 20200271630
    Abstract: The present invention relates to a quick quantitative analysis method and analyzer for mixture concentration information. A quick quantitative analysis method for a mixture based on spectral information includes: collecting a sample of a mixture solution, and injecting into a DAD to obtain DAD data; then, calculating a spectral library by a quick qualitative analysis method based on a vector error algorithm to obtain a spectral error vector; determining a spectral curve of a component included in the data corresponding to the sample, according to a value of the error vector; and calculating a content flag value of each component in the sample and concentration information of each substance.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 27, 2020
    Inventors: Lizhi CUI, Xuhui PU, Xinwei LI, Keping WANG, Yi YANG, Bingfeng LI, Qiongxia YU, Junqi YANG, Fuzhong WANG, Shumin FEI
  • Patent number: 10566640
    Abstract: Improved additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells. Use of these improved additives can not only improve durability and performance, but can also provide a marked performance improvement during initial conditioning of the fuel cells. The additives are chemical complexes comprising certain metal and organic ligand components.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 18, 2020
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Keping Wang, Yunsong Yang, Carmen Chuy, Jing Li, Owen Thomas, Yuquan Zou
  • Patent number: 10186725
    Abstract: An excellent polymer electrolyte composition has excellent chemical stability of being resistant to strong oxidizing atmosphere during operation of fuel cell, and achieves excellent proton conductivity under low-humidification conditions, excellent mechanical strength and physical durability. A polymer electrolyte membrane, a membrane electrode assembly, and a polymer electrolyte fuel cell each use the same. The polymer electrolyte composition contains an ionic group-containing polymer (A), a phosphorus-containing additive (B), and a nitrogen-containing aromatic additive (C), the phosphorus-containing additive (B) and the nitrogen-containing aromatic additive (C) being a compound represented by specific structural formulae.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: January 22, 2019
    Assignees: Toray Industries, Inc., Daimler AG, Ford Motor Company
    Inventors: Hiroaki Umeda, Daisuke Izuhara, Yuka Fujieda, Jing Li, Yunsong Yang, Keping Wang
  • Publication number: 20180294500
    Abstract: A method is disclosed for improving the durability of membrane electrode assemblies in solid polymer electrolyte fuel cells by reducing the amount of halogen ion contaminants present. Silver carbonate is dissolved in an ionomer dispersion and incorporated into an appropriate component in the fuel cell where it reacts with halogen ion present to form silver halides. The component is then exposed to a suitable light source that decomposes the halide into halogen gas which is then removed prior to final assembly of the fuel cell.
    Type: Application
    Filed: March 21, 2018
    Publication date: October 11, 2018
    Inventors: Yunsong Yang, Yuquan Zou, Keping Wang, Carmen Chuy
  • Publication number: 20170033387
    Abstract: An excellent polymer electrolyte composition has excellent chemical stability of being resistant to strong oxidizing atmosphere during operation of fuel cell, and achieves excellent proton conductivity under low-humidification conditions, excellent mechanical strength and physical durability. A polymer electrolyte membrane, a membrane electrode assembly, and a polymer electrolyte fuel cell each use the same. The polymer electrolyte composition contains an ionic group-containing polymer (A), a phosphorus-containing additive (B), and a nitrogen-containing aromatic additive (C), the phosphorus-containing additive (B) and the nitrogen-containing aromatic additive (C) being a compound represented by specific structural formulae.
    Type: Application
    Filed: April 6, 2015
    Publication date: February 2, 2017
    Inventors: Hiroaki Umeda, Daisuke Izuhara, Yuka Fujieda, Jing Li, Yunsong Yang, Keping Wang
  • Publication number: 20170025699
    Abstract: Improved additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells. Use of these improved additives can not only improve durability and performance, but can also provide a marked performance improvement during initial conditioning of the fuel cells. The additives are chemical complexes comprising certain metal and organic ligand components.
    Type: Application
    Filed: July 19, 2016
    Publication date: January 26, 2017
    Inventors: Keping Wang, Yunsong Yang, Carmen Chuy, Jing Li, Owen Thomas, Yuquan Zou
  • Patent number: 9510198
    Abstract: A user identity recognition method for a mobile terminal includes that: a mobile terminal detects and tracks a user's behavior before a Subscriber Identity Module (SIM) card is replaced, and records characteristics of the user's behavior; after the SIM card is replaced, the mobile terminal detects and tracks a user's behavior and records characteristics of the user's behavior; the mobile terminals determines whether the characteristics of the user's behavior before the SIM card is replaced are same as or similar to the characteristics of the user's behavior after the SIM card is replaced; if so, the mobile terminals determines that the user is a legal user; otherwise, the mobile terminals determines that the user is an illegal user. Correspondingly, a mobile terminal is also disclosed, which is difficult to crack, more secure, and easy and convenient to implement.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: November 29, 2016
    Assignee: ZTE CORPORATION
    Inventors: Keping Wang, Zhonghui Che, Guanjun Tan, Xin Song, Leshen Hu
  • Patent number: 9496253
    Abstract: According to various embodiments, a miniature passive structure for electrostatic discharge protection and input/output matching for a high frequency integrated circuit may be provided. The structure may include: either a transmission line or an inductor for providing at least one electrostatic discharge path; and a capacitor with a first end connected to the transmission line or inductor and a second end connected to ground.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: November 15, 2016
    Assignee: Nanyang Technological University
    Inventors: Kai Xue Ma, Keping Wang, Kiat Seng Yeo
  • Patent number: 9391337
    Abstract: Additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells in order to improve both durability and performance. The additives are chemical complexes comprising certain metal and organic ligand components.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: July 12, 2016
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Keping Wang, Yunsong Yang, Jing Li
  • Publication number: 20160006068
    Abstract: Additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells in order to improve both durability and performance. The additives are chemical complexes comprising certain metal and organic ligand components.
    Type: Application
    Filed: September 16, 2015
    Publication date: January 7, 2016
    Applicants: Ford Motor Company, Daimler AG
    Inventors: Keping Wang, Yunsong Yang, Jing Li
  • Patent number: 9172107
    Abstract: Additives can be used to prepare polymer electrolyte for membrane electrode assemblies in polymer electrolyte fuel cells in order to improve both durability and performance. The additives are chemical complexes comprising certain metal and organic ligand components.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: October 27, 2015
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Keping Wang, Yunsong Yang, Jing Li
  • Patent number: 9101886
    Abstract: A small molecule or polymer additive can be used in preparation of a membrane electrode assembly to improve its durability and performance under low relative humidity in a fuel cell. Specifically, a method of forming a membrane electrode assembly comprising a proton exchange membrane, comprises providing an additive comprising at least two nitrogen atoms to the membrane electrode assembly.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: August 11, 2015
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Yunsong Yang, Jing Li, Keping Wang
  • Patent number: 9102789
    Abstract: A proton conducting copolymer electrolyte with competitive voltage versus current density characteristics and superior durability comprises a proton conducting hydrophilic domain comprising a sulfonated poly(phenylene) polymer, and a hydrophobic domain comprising a main chain comprising a plurality of bonded arylene groups wherein essentially all of the bonds in the main chain of the copolymer are carbon-carbon or, to a certain extent, carbon-sulfone bonds. More particularly, none of the bonds in the chains of the copolymer are ether bonds. Due to the absence of ether bonds, the copolymer electrolyte is less susceptible to degradation in solid polymer fuel cells.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: August 11, 2015
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Yunsong Yang, Yuquan Zou, Jing Li, Keping Wang
  • Publication number: 20150145098
    Abstract: According to various embodiments, a miniature passive structure for electrostatic discharge protection and input/output matching for a high frequency integrated circuit may be provided. The structure may include: either a transmission line or an inductor for providing at least one electrostatic discharge path; and a capacitor with a first end connected to the transmission line or inductor and a second end connected to ground.
    Type: Application
    Filed: December 31, 2012
    Publication date: May 28, 2015
    Inventors: Kai Xue Ma, Keping Wang, Kiat Seng Yeo
  • Publication number: 20140323081
    Abstract: A user identity recognition method for a mobile terminal includes that: a mobile terminal detects and tracks a user's behavior before a Subscriber Identity Module (SIM) card is replaced, and records characteristics of the user's behavior; after the SIM card is replaced, the mobile terminal detects and tracks a user's behavior and records characteristics of the user's behavior; the mobile terminals determines whether the characteristics of the user's behavior before the SIM card is replaced are same as or similar to the characteristics of the user's behavior after the SIM card is replaced; if so, the mobile terminals determines that the user is a legal user; otherwise, the mobile terminals determines that the user is an illegal user. Correspondingly, a mobile terminal is also disclosed, which is difficult to crack, more secure, and easy and convenient to implement.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 30, 2014
    Applicant: ZTE CORPORATION
    Inventors: Keping Wang, Zhonghui Che, Guanjun Tan, Xin Song, Leshen Hu
  • Patent number: 8758955
    Abstract: Ligand additives having two or more coordination sites in close proximity can be used in the polymer electrolyte of membrane electrode assemblies in solid polymer electrolyte fuel cells in order to reduce the dissolution of catalyst, particularly from the cathode, and hence reduce fuel cell degradation over time.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: June 24, 2014
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Jing Li, Keping Wang, Yunsong Yang, Scott McDermid, Sumit Kundu
  • Patent number: 8710108
    Abstract: A proton conducting polymer electrolyte comprising a proton conducting ionomer cross-linked with an amount of a copolymer additive comprising cross-linking functional groups and other functional groups (e.g. proton carriers, chelating agents, radical scavengers) shows improved durability over the ionomer alone and provides for more stable inclusion of these other functional groups. The copolymer additive comprises at least two types of metal oxide monomers, one having cross-linking functional groups and the other having the other functional groups.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: April 29, 2014
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Keping Wang, Jing Li, Yunsong Yang
  • Patent number: 8709677
    Abstract: A proton conducting polymer electrolyte comprising a proton conducting ionomer cross-linked with an amount of a copolymer additive comprising cross-linking functional groups and other functional groups (e.g. proton carriers, chelating agents, radical scavengers) shows improved durability over the ionomer alone and provides for more stable inclusion of these other functional groups. The copolymer additive comprises at least two types of metal oxide monomers, one having cross-linking functional groups and the other having the other functional groups.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: April 29, 2014
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Keping Wang, Jing Li, Yunsong Yang
  • Publication number: 20120258382
    Abstract: Ligand additives having two or more coordination sites in close proximity can be used in the polymer electrolyte of membrane electrode assemblies in solid polymer electrolyte fuel cells in order to reduce the dissolution of catalyst, particularly from the cathode, and hence reduce fuel cell degradation over time.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 11, 2012
    Applicants: Ford Motor Company, Daimler AG
    Inventors: Jing Li, Keping Wang, Yunsong Yang, Scott McDermid, Sumit Kundu
  • Publication number: 20120231367
    Abstract: A small molecule or polymer additive can be used in preparation of a membrane electrode assembly to improve its durability and performance under low relative humidity in a fuel cell. Specifically, a method of forming a membrane electrode assembly comprising a proton exchange membrane, comprises providing an additive comprising at least two nitrogen atoms to the membrane electrode assembly.
    Type: Application
    Filed: November 10, 2010
    Publication date: September 13, 2012
    Applicants: FORD MOTOR COMPANY, DAIMLER AG
    Inventors: Yunsong Yang, Jing Li, Keping Wang