Patents by Inventor Hiroyuki Tokuda

Hiroyuki Tokuda 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: 9281541
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: March 8, 2016
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Tokuda, Takashi Fujii, Minoru Kotato, Masahiro Takehara, Masamichi Onuki, Youichi Ohashi, Shinichi Kinoshita
  • Patent number: 9231277
    Abstract: A nonaqueous electrolyte containing a monofluorophosphate and/or a difluorophosphate and a compound having a specific chemical structure or specific properties. The nonaqueous electrolyte can contain at least one of a saturated chain hydrocarbon, a saturated cyclic hydrocarbon, an aromatic compound having a halogen atom and an ether having a fluorine atom.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: January 5, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Ryoichi Kato, Hiroyuki Tokuda, Takashi Fujii, Minoru Kotato, Masahiro Takehara, Masamichi Onuki, Youichi Ohashi, Shinichi Kinoshita
  • Publication number: 20150380772
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki TOKUDA, Minoru KOTATO, Shinichi KINOSHITA
  • Patent number: 9196903
    Abstract: This invention relates to a nonaqueous-electrolyte battery containing a current collector, a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The positive electrode contains a lithium-containing phosphoric acid compound represented by LixMPO4 as a positive-electrode active material, where M is at least one element selected from Group-2 to Group-12 metals of the periodic table, and x satisfies 0<x?1.2. The negative electrode contains a negative-electrode active material capable of occluding and releasing lithium ions. The nonaqueous electrolytic solution contains a chain ether and a cyclic carbonate having an unsaturated bond.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 24, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Hiroyuki Tokuda
  • Patent number: 9093716
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 28, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki Tokuda, Takashi Fujii, Minoru Kotato, Masahiro Takehara, Masamichi Onuki, Youichi Ohashi, Shinichi Kinoshita
  • Patent number: 9048508
    Abstract: A subject is to provide a nonaqueous electrolyte excellent in cycle performances such as capacity retention after cycling, output after cycling, discharge capacity after cycling, and cycle discharge capacity ratio, output characteristics, high-temperature storability, low-temperature discharge characteristics, heavy-current discharge characteristics, high-temperature storability, safety, high capacity, high output, high-current-density cycle performances, compatibility of these performances, etc. Another subject is to provide a nonaqueous-electrolyte secondary battery employing the nonaqueous electrolyte. The subjects have been accomplished with a nonaqueous electrolyte which contains a monofluorophosphate and/or a difluorophosphate and further contains a compound having a specific chemical structure or specific properties.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: June 2, 2015
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ryoichi Kato, Hiroyuki Tokuda, Takashi Fujii, Minoru Kotato, Masahiro Takehara, Masamichi Onuki, Youichi Ohashi, Shinichi Kinoshita
  • Patent number: 8998487
    Abstract: An X-ray imaging apparatus comprises an X-ray source; a housing configured to accommodate the X-ray source; and a plurality of supporting legs each connected to the housing via a movable connecting portion and configured to support the housing, wherein each of the supporting legs can change, by the movable connecting portion, a support angle made by a ground plane and the supporting leg.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Watanabe, Hiroyuki Tokuda, Hitomi Ogasawara, Takashi Ogura, Jun Murata
  • Publication number: 20150044554
    Abstract: Provided are a nonaqueous electrolyte battery having improved durability properties such as cycle and storage properties, and improved load characteristic, and a nonaqueous electrolyte solution that is appropriate for the nonaqueous electrolyte battery. The nonaqueous electrolyte solution contains a lithium salt and a nonaqueous solvent that dissolves the lithium salt. The nonaqueous electrolyte solution also contains a compound represented by formula (1) and a specific compound that acts in conjunction with the aforementioned compound.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki TOKUDA, Akemi HOSOKAWA, Shuhei SAWA, Youichi OHASHI, Koji FUKAMIZU, Minoru KOTATO, Daisuke KAWAKAMI
  • Publication number: 20140335405
    Abstract: A nonaqueous electrolyte containing a monofluorophosphate and/or a difluorophosphate and a compound having a specific chemical structure or specific properties. The nonaqueous electrolyte can contain at least one of a saturated chain hydrocarbon, a saturated cyclic hydrocarbon, an aromatic compound having a halogen atom and an ether having a fluorine atom.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 13, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Ryoichi KATO, Hiroyuki TOKUDA, Takashi FUJII, Minoru KOTATO, Masahiro TAKEHARA, Masamichi ONUKI, Youichi OHASHI, Shinichi KINOSHITA
  • Patent number: 8673489
    Abstract: An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF6; and a specific fluorosulfonic acid salt, and to a nonaqueous-electrolyte secondary battery containing the nonaqueous electrolytic solution.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: March 18, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Tokuda, Hiroaki Yoshida, Atsushi Watarai
  • Publication number: 20140038062
    Abstract: The present invention relates to a method for producing lithium fluorosulfonate which comprises reacting a lithium salt and fluorosulfonic acid in a nonaqueous solvent, wherein the lithium salt is a lithium salt not generating water through the reaction step.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Daisuke KAWAKAMI, Ryo YAMAGUCHI, Hiroyuki TOKUDA, Masahiro TAKEHARA
  • Publication number: 20130337343
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Application
    Filed: August 26, 2013
    Publication date: December 19, 2013
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Tokuda, Takashi Fujii, Minoru Kotato, Masahiro Takehara, Masamichi Onuki, Youichi Ohashi, Shinichi Kinoshita
  • Publication number: 20130280622
    Abstract: An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF6; and a specific fluorosulfonic acid salt, and to a nonaqueous-electrolyte secondary battery containing the nonaqueous electrolytic solution.
    Type: Application
    Filed: June 21, 2013
    Publication date: October 24, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki TOKUDA, Hiroaki Yoshida, Atsushi Watari
  • Publication number: 20130216918
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 22, 2013
    Inventors: Hiroyuki TOKUDA, Takashi FUJII, Minoru KOTATO, Masahiro TAKEHARA, Masamichi ONUKI, Youichi OHASHI, Shinichi KINOSHITA
  • Patent number: 8414979
    Abstract: An object of the present invention is to provide a radiation-curable coating material which forms a cured coating film having high hardness and low curing shrinkage, a radiation-curable resin composition for obtaining the radiation-curable coating material, and a method for forming a protective layer using the radiation-curable coating material.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: April 9, 2013
    Assignee: DIC Corporation
    Inventors: Yohzoh Yamashina, Hiroyuki Tokuda, Youichi Tanimoto, David, Nobuyuki Koike
  • Publication number: 20130084493
    Abstract: This invention relates to a nonaqueous-electrolyte battery containing a current collector, a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The positive electrode contains a lithium-containing phosphoric acid compound represented by LixMPO4 as a positive-electrode active material, where M is at least one element selected from Group-2 to Group-12 metals of the periodic table, and x satisfies 0<x?1.2. The negative electrode contains a negative-electrode active material capable of occluding and releasing lithium ions. The nonaqueous electrolytic solution contains a chain ether and a cyclic carbonate having an unsaturated bond.
    Type: Application
    Filed: November 14, 2012
    Publication date: April 4, 2013
    Inventor: Hiroyuki TOKUDA
  • Publication number: 20130011728
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki TOKUDA, Takashi FUJII, Minoru KOTATO, Masahiro TAKEHARA, Masamichi ONUKI, Youichi OHASHI, Shinichi KINOSHITA
  • Publication number: 20120308881
    Abstract: An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF6; and a specific fluorosulfonic acid salt, and to a nonaqueous-electrolyte secondary battery containing the nonaqueous electrolytic solution.
    Type: Application
    Filed: August 13, 2012
    Publication date: December 6, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki TOKUDA, Hiroaki YOSHIDA, Atsushi WATARAI
  • Publication number: 20120264010
    Abstract: A nonaqueous electrolyte containing a monofluorophosphate and/or a difluorophosphate and a compound having a specific chemical structure or specific properties. The nonaqueous electrolyte can contain at least one of a saturated chain hydrocarbon, a saturated cyclic hydrocarbon, an aromatic compound having a halogen atom and an ether having a fluorine atom.
    Type: Application
    Filed: June 28, 2012
    Publication date: October 18, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Ryoichi KATO, Hiroyuki TOKUDA, Takashi FUJII, Minoru KOTATO, Masahiro TAKEHARA, Masamichi ONUKI, Youichi OHASHI, Shinichi KINOSHITA
  • Publication number: 20120244425
    Abstract: The invention is to provide a nonaqueous-electrolyte battery which comprises a current collector, a positive electrode containing a lithium-containing phosphoric acid compound represented by LixMPO4 as a positive-electrode active material, a negative electrode containing a negative-electrode active material capable of occluding and releasing lithium ions, and a nonaqueous electrolytic solution containing a chain ether and a cyclic carbonate having an unsaturated bond.
    Type: Application
    Filed: March 26, 2012
    Publication date: September 27, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Hiroyuki TOKUDA