Patents by Inventor Hiroki Yoshizaki

Hiroki Yoshizaki 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: 9390864
    Abstract: The present invention relates to the use of at least one imidazol derivative of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 12, 2016
    Assignee: MERCK PATENT GMBH
    Inventors: Kentaro Kawata, Tomohisa Goto, Hiroki Yoshizaki
  • Patent number: 9287052
    Abstract: The present invention relates to the use of at least one tertiary amine-N-oxide of formula I as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: March 15, 2016
    Assignee: Merck Patent GmbH
    Inventors: Hiroki Yoshizaki, Kentaro Kawata, Tomohisa Goto, Hiromi Shinohara, Peter Kirsch
  • Publication number: 20150340165
    Abstract: The present invention relates to the use of at least one imidazol derivative of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 26, 2015
    Applicant: MERCK PATENT GMBH
    Inventors: Kentaro KAWATA, Tomohisa GOTO, Hiroki YOSHIZAKI
  • Patent number: 9159499
    Abstract: The present invention relates to the use of at least one imidazol derivative of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: October 13, 2015
    Assignee: Merck Patent GmbH
    Inventors: Kentaro Kawata, Tomohisa Goto, Hiroki Yoshizaki
  • Patent number: 8921589
    Abstract: The present invention relates to electrolyte formulations comprising at least one imidazolium fluorotricyanoborate or pyrrolidinium fluorotricyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: December 30, 2014
    Assignee: Merck Patent GmbH
    Inventors: Kentaro Kawata, Nikolai Mykola Ignatyev, Michael Schulte, Hiroki Yoshizaki
  • Patent number: 8901340
    Abstract: The present invention relates to compounds containing perfluoroalkyl-cyano-alkoxy-borate anions or perfluoroalkyl-cyano-alkoxy-fluoro-borate anions, ((per)fluoro)phenyl-cyano-alkoxy-borate anions or ((per)fluoro)phenyl-cyano-alkoxy-fluoro-borate anions or phenyl-cyano-alkoxy-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms or phenyl-cyano-alkoxy-fluoro-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms, the preparation thereof and the use thereof, in particular as part of electrolyte formulations for dye sensitized solar cells.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: December 2, 2014
    Assignee: Merck Patent GmbH
    Inventors: Hiromi Shinohara, Kentaro Kawata, Hiroki Yoshizaki, Peer Kirsch, Nikolai (Mykola) Ignatyev, William Robert Pitner, Michael Schulte, Jan Sprener, Maik Finze, Walter Frank
  • Patent number: 8835667
    Abstract: The present invention relates to electrolyte formulations comprising at least one compound of formula (I) Ma+[B(Rf)(CN)x(F)y]a— (I) in which Ma+ is an inorganic or organic cation, Rf denotes straight-chain or branched perfluoroalkyl groups having 1 to 4 C atoms, C6F5, C6H5, partially fluorinated phenyl or phenyl which is monosubstituted or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms, a is 1 or 2, x is 1, 2 or 3, y is 0, 1 or 2 and x+y is 3 and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a capacitor, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: September 16, 2014
    Assignee: Merck Patent GmbH
    Inventors: Hiromi Shinohara, Kentaro Kawata, Hiroki Yoshizaki, Peer Kirsch, Nikolai (Mykola) Ignatyev, Michael Schulte, Jan Sprenger, Maik Finze, Walter Frank
  • Patent number: 8829201
    Abstract: The present invention relates to electrolyte formulations comprising at least one imidazolium difluorodicyanoborate or pyrrolidinium difluorodicyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot-sensitized solar cell.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: September 9, 2014
    Assignee: Merck Patent GmbH
    Inventors: Kentaro Kawata, Hiroki Yoshizaki, Hiromi Shinohara, Peer Kirsch, Nikolai (Mykola) Ignatyev, William-Robert Pitner, Emil Ferdinand Aust, Marlies Waterman
  • Publication number: 20140190567
    Abstract: The present invention relates to the use of at least one imidazol derivative of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole.
    Type: Application
    Filed: August 20, 2012
    Publication date: July 10, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Kentaro Kawata, Tomohisa Goto, Hiroki Yoshizaki
  • Publication number: 20140182680
    Abstract: The present invention relates to electrolyte formulations comprising at least one compound comprising a dihydridodicyanoborate anion and their use in an eletrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.
    Type: Application
    Filed: May 23, 2012
    Publication date: July 3, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Kentaro KAWATA, Tomohisa GOTO, Nikolai (Mykola) IGNATYEV, Michael SCHULTE, Hiroki YOSHIZAKI, Eduard BERNHARDT, Vera BERNHARDT-PITCHOUGINA, Helge WILLNER
  • Publication number: 20130292601
    Abstract: The present invention relates to the use of at least one tertiary amine-N-oxide of formula I as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 7, 2013
    Inventors: Hiroki YOSHIZAKI, Kentaro KAWATA, Tomohisa GOTO, Hiromi SHINOHARA, Peter KIRSCH
  • Publication number: 20130180591
    Abstract: The present invention relates to electrolyte formulations comprising at least one imidazolium fluorotricyanoborate or pyrrolidinium fluorotricyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.
    Type: Application
    Filed: September 1, 2011
    Publication date: July 18, 2013
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Kentaro Kawata, Nikolai Mykola Ignatyev, Michael Schulte, Hiroki Yoshizaki
  • Publication number: 20120318360
    Abstract: The present invention relates to electrolyte formulations comprising at least one imidazolium difluorodicyanoborate or pyrrolidinium difluorodicyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot-sensitized solar cell
    Type: Application
    Filed: July 6, 2012
    Publication date: December 20, 2012
    Applicant: MERCK PATENT GMBH
    Inventors: Kentaro KAWATA, Hiroki YOSHIZAKI, Hiromi SHINOHARA, Peer KIRSCH, Nikolai (Mykola) IGNATYEV, William-Robert PITNER, Emil Ferdinand AUST, Marlies WATERMANN
  • Publication number: 20120309982
    Abstract: The present invention relates to electrolyte formulations comprising at least one compound of formula (I) Ma+[B(Rf)(CN)x(F)y]a— (I) in which Ma+ is an inorganic or organic cation, Rf denotes straight-chain or branched perfluoroalkyl groups having 1 to 4 C atoms, C6F5, C6H5, partially fluorinated phenyl or phenyl which is monosubstituted or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms, a is 1 or 2, x is 1, 2 or 3, y is 0, 1 or 2 and x+y is 3 and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a capacitor, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.
    Type: Application
    Filed: January 12, 2011
    Publication date: December 6, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Hiromi Shinohara, Kentaro Kawata, Hiroki Yoshizaki, Peer Kirsch, Nikolai (Mykola) Ignatyev, Michael Schulte, Jan Sprenger, Maik Finze, Walter Frank
  • Publication number: 20120296096
    Abstract: The present invention relates to compounds containing perfluoroalkyl-cyano-alkoxy-borate anions or perfluoroalkyl-cyano-alkoxy-fluoro-borate anions, ((per)fluoro)phenyl-cyano-alkoxy-borate anions or ((per)fluoro)phenyl-cyano-alkoxy-fluoro-borate anions or phenyl-cyano-alkoxy-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms or phenyl-cyano-alkoxy-fluoro-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms, the preparation thereof and the use thereof, in particular as part of electrolyte formulations for dye sensitized solar cells.
    Type: Application
    Filed: January 12, 2011
    Publication date: November 22, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Hiromi Shinohara, Kentaro Kawata, Hiroki Yoshizaki, Peer Kirsch, Nikolai (Mykola) Ignatyev, William Robert Pitner, Michael Schulte, Jan Sprener, Maik Finze, Walter Frank