Patents by Inventor Shuki Araki

Shuki Araki 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).

  • Liquid electrolyte for batteries, method for producing the same, and battery comprising the same
    Patent number: 9722288
    Abstract: An object of the present invention is to provide a liquid electrolyte for batteries, which has excellent ion conductivity, a method for producing the liquid electrolyte and a battery including the liquid electrolyte. Disclosed is a liquid electrolyte for batteries, comprising a mesoionic compound represented by the following general formula (1): wherein R1 and R2 are each independently an alkyl group having 1 to 3 carbon atoms.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: August 1, 2017
    Assignees: NAGOYA INSTITUTE OF TECHNOLOGY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsunehisa Hirashita, Shuki Araki, Katsuyuki Kagami, Hirofumi Nakamoto, Taishi Shiotsuki
  • Liquid electrolyte for lithium batteries, method for producing the same, and lithium battery comprising the liquid electrolyte for lithium batteries
    Patent number: 9620817
    Abstract: The present invention is to provide: a liquid electrolyte for batteries, which has excellent stability to lithium metals; a method for producing the liquid electrolyte; and a lithium battery comprising the liquid electrolyte. Presented is a liquid electrolyte for lithium batteries, wherein the liquid electrolyte comprises a mesoionic compound represented by the following general formula (1): wherein R1 is an aliphatic hydrocarbon group having 1 to 3 carbon atoms, and R2 is a group represented by any one of the following general formulae (2), (3) and (4): General Formula (2): —ClH2l—(OCH2)m—CnH2n+1; General Formula (3): —CxH2x—(CH2OCH2)y—CzH2z+1; and General Formula (4): —CpH2p—(C2H4OCH2)q—CrH2r+1.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 11, 2017
    Assignees: NAGOYA INSTITUTE OF TECHNOLOGY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsunehisa Hirashita, Shuki Araki, Hirofumi Nakamoto, Atsushi Shirasawa
  • LIQUID ELECTROLYTE FOR LITHIUM BATTERIES, METHOD FOR PRODUCING THE SAME, AND LITHIUM BATTERY COMPRISING THE LIQUID ELECTROLYTE FOR LITHIUM BATTERIES
    Publication number: 20150236377
    Abstract: The present invention is to provide: a liquid electrolyte for batteries, which has excellent stability to lithium metals; a method for producing the liquid electrolyte; and a lithium battery comprising the liquid electrolyte. Presented is a liquid electrolyte for lithium batteries, wherein the liquid electrolyte comprises a mesoionic compound represented by the following general formula (1): wherein R1 is an aliphatic hydrocarbon group having 1 to 3 carbon atoms, and R2 is a group represented by any one of the following general formulae (2), (3) and (4): General Formula (2): —C1H21—(OCH2)m—CnH2n+1; General Formula (3): —CxH2x—(CH2OCH2)y—CzH2z+1; and General Formula (4): —CpH2p—(C2H4OCH2)q—CrH2r+1.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 20, 2015
    Inventors: Tsunehisa Hirashita, Shuki Araki, Hirofumi Nakamoto, Atsushi Shirasawa
  • LIQUID ELECTROLYTE FOR BATTERIES, METHOD FOR PRODUCING THE SAME, AND BATTERY COMPRISING THE SAME
    Publication number: 20140220476
    Abstract: An object of the present invention is to provide a liquid electrolyte for batteries, which has excellent ion conductivity, a method for producing the liquid electrolyte and a battery including the liquid electrolyte. Disclosed is a liquid electrolyte for batteries, comprising a mesoionic compound represented by the following general formula (1): wherein R1 and R2 are each independently an alkyl group having 1 to 3 carbon atoms.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 7, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Tsunehisa Hirashita, Shuki Araki, Katsuyuki Kagami, Hirofumi Nakamoto, Taishi Shiotsuki
  • Chiral amino-methyl ferrocene derivatives
    Patent number: 5212311
    Abstract: A ferrocene derivatives represented by the following formula (I): ##STR1## can be a useful ligand to metals with Lewis acidity and is used as a catalyst for asymmetric synthesis with good enantioselectivity. This ferrocene derivatives is synthesized from a novel haloferrocene derivative represented by formula (II) and the haloferrocene derivative is synthesized from a novel ferrocene derivative represented by formula (III).
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: May 18, 1993
    Assignee: Tosoh Corporation
    Inventors: Makoto Watanabe, Masaru Uemura, Shuki Araki, Yasuo Butsugan
  • Chiral amino-methyl ferrocene derivatives
    Patent number: 5079359
    Abstract: A ferrocene derivatives represented by the following formula (I): ##STR1## can be a useful ligand to metals with Lewis acidity and is used as a catalyst for asymmetric synthesis with good enantioselectivety. This ferrocene derivatives is synthesized from a novel haloferrocene derivative represented by formula (II) and the haloferrocene derivative is synthesized from a novel ferrocene derivative represented by formula (III).
    Type: Grant
    Filed: March 8, 1990
    Date of Patent: January 7, 1992
    Assignee: Tosoh Corporation
    Inventors: Makoto Watanabe, Masaru Uemura, Shuki Araki, Yasuo Butsugan