Patents by Inventor Tatsuaki Honda

Tatsuaki Honda 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: 10505195
    Abstract: The present invention provides an electrical storage device binder composition that can produce an electrode that achieves improved charge-discharge characteristics. The composition includes a polymer (A) and a liquid medium (B), and further includes particles having a particle size of 10 to 50 micrometers in a number of 1,000 to 100,000 per mL.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: December 10, 2019
    Assignee: JSR CORPORATION
    Inventors: Shinsaku Ugawa, Tatsuaki Honda, Yoshiharu Otsuka, Takuya Nakayama, Daisuke Sukeguchi
  • Publication number: 20170149064
    Abstract: The present invention provides an electrical storage device binder composition that can produce an electrode that achieves improved charge-discharge characteristics. The composition includes a polymer (A) and a liquid medium (B), and further includes particles having a particle size of 10 to 50 micrometers in a number of 1,000 to 100,000 per mL.
    Type: Application
    Filed: June 23, 2015
    Publication date: May 25, 2017
    Applicant: JSR CORPORATION
    Inventors: Shinsaku UGAWA, Tatsuaki HONDA, Yoshiharu OTSUKA, Takuya NAKAYAMA, Daisuke SUKEGUCHI
  • Patent number: 9520242
    Abstract: An electrode binder composition that is used to produce an electrode used for an electrical storage device, includes (A) a polymer, (B) a carboxylic acid or a salt thereof, and (C) a liquid medium, and has a concentration of the carboxylic acid or a salt thereof (B) of 20 to 1000 ppm.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: December 13, 2016
    Assignee: JSR CORPORATION
    Inventors: Hironori Kitaguchi, Yoshiharu Otsuka, Nobuyuki Fujihara, Tatsuaki Honda
  • Publication number: 20150213968
    Abstract: An electrode binder composition that is used to produce an electrode used for an electrical storage device, includes (A) a polymer, (B) a carboxylic acid or a salt thereof, and (C) a liquid medium, and has a concentration of the carboxylic acid or a salt thereof (B) of 20 to 1000 ppm.
    Type: Application
    Filed: April 6, 2015
    Publication date: July 30, 2015
    Applicant: JSR CORPORATION
    Inventors: Hironori KITAGUCHI, Yoshiharu OTSUKA, Nobuyuki FUJIHARA, Tatsuaki HONDA
  • Patent number: 8709652
    Abstract: An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. wherein R1 and R2 independently represent a hydrogen atom, a halogen atom, or a monovalent alkyl group, and n is an integer from 0 to 5.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 29, 2014
    Assignee: JSR Corporation
    Inventors: Maki Maegawa, Tatsuaki Honda, Tatsuya Abe, Hiroyuki Miyauchi
  • Patent number: 8663839
    Abstract: An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. wherein R1 and R2 independently represent a hydrogen atom, a halogen atom, or a monovalent alkyl group, and n is an integer from 0 to 5.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 4, 2014
    Assignee: JSR Corporation
    Inventors: Maki Maegawa, Tatsuaki Honda, Tatsuya Abe, Hiroyuki Miyauchi
  • Publication number: 20140038041
    Abstract: An electrical storage device electrode includes a collector, and an active material layer that is formed on a surface of the collector, the active material layer including at least a polymer and an active material, and the active material layer having a polymer distribution coefficient of 0.6 to 1.0 and a density of 1.3 to 1.8 g/cm3.
    Type: Application
    Filed: February 7, 2012
    Publication date: February 6, 2014
    Applicant: JSR CORPORATION
    Inventors: Ichiro Kajiwara, Osamu Kose, Tatsuaki Honda
  • Publication number: 20140030592
    Abstract: An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. wherein R1 and R2 independently represent a hydrogen atom, a halogen atom, or a monovalent alkyl group, and n is an integer from 0 to 5.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Applicant: JSR CORPORATION
    Inventors: Maki MAEGAWA, Tatsuaki HONDA, Tatsuya ABE, Hiroyuki MIYAUCHI
  • Patent number: 8628882
    Abstract: An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. wherein R1 and R2 independently represent a hydrogen atom, a halogen atom, or a monovalent alkyl group, and n is an integer from 0 to 5.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: January 14, 2014
    Assignee: JSR Corporation
    Inventors: Maki Maegawa, Tatsuaki Honda, Tatsuya Abe, Hiroyuki Miyauchi
  • Publication number: 20130323588
    Abstract: An electrode binder composition includes polymer particles. The polymer particles include 5 to 40 parts by mass of a constituent unit (A) derived from an alpha,beta-unsaturated nitrile compound, and 0.3 to 10 parts by mass of a constituent unit (B) derived from an unsaturated carboxylic acid, and have a number average particle size of 50 to 400 nm. The electrode binder composition has a gel content of 90 to 99% and an electrolyte solution swelling ratio of 110 to 400%.
    Type: Application
    Filed: December 8, 2011
    Publication date: December 5, 2013
    Applicant: JSR Corporation
    Inventors: Ichiro Kajiwara, Fusazumi Masaka, Takeshi Mogi, Daisuke Sukeguchi, Tatsuaki honda
  • Publication number: 20130052530
    Abstract: An electrode binder composition that is used to produce an electrode used for an electrical storage device, includes (A) a polymer, (B) a carboxylic acid or a salt thereof, and (C) a liquid medium, and has a concentration of the carboxylic acid or a salt thereof (B) of 20 to 1000 ppm.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Applicant: JSR Corporation
    Inventors: Hironori KITAGUCHI, Yoshiharu Otsuka, Nobuyuki Fujihara, Tatsuaki Honda
  • Publication number: 20120177991
    Abstract: The invention relates to an electrochemical device having a positive electrode and a negative electrode, wherein at least either of the positive electrode and the negative electrode has a current collector and an electrode layer having an electrode active material and a binder containing a polymer having a constituent unit derived from an amide group-containing monomer and a constituent unit derived from (meth)acrylic acid, such that: (i) the polymer has a swelling rate of 120 to 600% when immersed for 24 hours at 80° C. in a solution containing ethylene carbonate, diethyl carbonate, ethyl methyl carbonate and lithium hexafluorophosphate; or (ii) the polymer has a swelling rate of 110 to 300% when immersed for 24 hours at 80° C. in a solution containing propylene carbonate and methyl triethyl ammonium tetrafluoroborate.
    Type: Application
    Filed: August 6, 2010
    Publication date: July 12, 2012
    Applicant: JSR Corporation
    Inventors: Takeshi Mogi, Tatsuaki Honda, Teruaki Tezuka