Patents by Inventor Taketo Kaneko

Taketo Kaneko 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: 8852295
    Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: October 7, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
  • Publication number: 20130248106
    Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.
    Type: Application
    Filed: May 10, 2013
    Publication date: September 26, 2013
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
  • Patent number: 8450011
    Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: May 28, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
  • Patent number: 8003015
    Abstract: The present invention provides a composite positive electrode material for a lithium ion battery, which is particularly excellent in high-rate discharge characteristics in a battery, and also provides a slurry, positive electrode and battery using the composite positive electrode material. The composite positive electrode material for a lithium ion battery contains: a positive electrode active material (a); a conductive material (b) having a primary particle diameter of 10 to 100 nm and/or a fibrous conductive material (c) having a fiber diameter of 1 nm to 1 ?m; and a conductive material (d) having an aspect ratio of 2 to 50.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: August 23, 2011
    Assignees: Kao Corporation, Nissan Motor Co., Ltd.
    Inventors: Kazuo Oki, Yasuhisa Fukumoto, Ryuichi Akagi, Kenichi Nishimura, Taketo Kaneko, Tamaki Miura, Takamitsu Saito, Mikio Kawai, Mieko Kawai, legal representative
  • Patent number: 7829136
    Abstract: The invention relates to fuel cells and methods of making bipolar fuel cell electrodes. The invention provides a method of producing bipolar fuel cell electrodes, including providing a collector having a first side and a second side opposite the first side, coating the first side with a first active material, coating the second side with a second active material, and compressing the coated collector to form a bipolar cell electrode. The invention also provides a method of producing bipolar fuel cell electrodes wherein the first side of the collector is first coated with the first active material and compressed at a first pressure, and subsequently the second side of the collector is coated with the second active material and compressed at a second pressure. The invention further provides an improved bipolar electrode for fuel cells.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: November 9, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takamitsu Saito, Hideaki Horie, Taketo Kaneko
  • Publication number: 20100140554
    Abstract: Disclosed is a composite positive electrode material for lithium ion batteries, which especially enables to achieve excellent high-rate discharge characteristics in a battery. Also disclosed are a slurry, positive electrode and battery using such a composite positive electrode material. Specifically disclosed is a composite positive electrode material for lithium ion batteries, which contains a positive electrode active material (a), a conductive substance (b) having a primary particle diameter of 10-100 nm and/or a fibrous conductive substance (c) having a fiber diameter of from 1 nm to 1 ?m, and a conductive substance (d) having an aspect ratio of 2-50.
    Type: Application
    Filed: June 27, 2007
    Publication date: June 10, 2010
    Applicants: Kao Corporation, Nissan Motor Co., Ltd.
    Inventors: Kazuo Oki, Yasuhisa Fukumoto, Ryuichi Akagi, Kenichi Nishimura, Taketo Kaneko, Tamaki Miura, Takamitsu Saito, Mikio Kawai
  • Publication number: 20080305394
    Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
  • Publication number: 20080292953
    Abstract: Disclosed herein is a non-aqueous solvent secondary battery, which has excellent long-term reliability and high thermal-resistance through the improved thermal resistance of the collectors. The non-aqueous solvent secondary battery comprises a cathode electrically coupled to a collector, an anode electrically coupled to a collector and an electrolyte layer interposed between the cathode and anode. The cathode, anode and electrolyte layer are stacked upon one another. The collector of the cathode side comprises an alloy-based metal foil with at least a portion of the collector of the cathode side having a Pitting Resistance Equivalent (PRE) of 45 or more.
    Type: Application
    Filed: April 3, 2008
    Publication date: November 27, 2008
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kenji Hosaka, Hideaki Horie, Takamitsu Saito, Taketo Kaneko, Ryoichi Senbokuya
  • Publication number: 20080118826
    Abstract: A lithium ion battery with cell elements includes a cathode, an anode, and an electrolyte layer between the cathode and the anode. The electrolyte layer includes an arrangement of insulating particles with a plurality of interstitial spaces therebetween, with electrolytes occupying at least some of the interstitial spaces.
    Type: Application
    Filed: December 14, 2005
    Publication date: May 22, 2008
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Osamu Shimamura, Taketo Kaneko, Takamitsu Saito, Kenji Hosaka, Hideaki Horie
  • Publication number: 20080020280
    Abstract: A positive electrode for a non-aqueous electrolytic secondary battery, includes: 1) a current collector; and 2) an active material layer formed on a surface of the current collector, the active material layer including: i) a positive electrode active material having an average particle diameter of less than or equal to 5 ?, ii) a conductivity assistant including: a) a particulate conductive material having: a primary particle diameter of less than or equal to 70 nm, and an aggregate size of less than 1 ?m, and b) a long chain conductive material, and iii) a binder.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 24, 2008
    Inventors: Tamaki Miura, Taketo Kaneko, Mikio Kawai
  • Publication number: 20080014498
    Abstract: A cell electrode of the present invention has a current collector and an active material layer formed on the current collector. The active material layer contains: an active material in which a mean particle diameter is more than 1 ?m to 5 ?m or less and a BET specific surface area is 1 to 5 m2/g; and a conductive material of which content is 3 to 50 mass % with respect to 100 mass % of the active material.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 17, 2008
    Inventors: Tomaru OGAWA, Takamitsu SAITO, Tamaki MIURA, Taketo KANEKO
  • Publication number: 20070105328
    Abstract: The invention relates to fuel cells and methods of making bipolar fuel cell electrodes. The invention provides a method of producing bipolar fuel cell electrodes, including providing a collector having a first side and a second side opposite the first side, coating the first side with a first active material, coating the second side with a second active material, and compressing the coated collector to form a bipolar cell electrode. The invention also provides a method of producing bipolar fuel cell electrodes wherein the first side of the collector is first coated with the first active material and compressed at a first pressure, and subsequently the second side of the collector is coated with the second active material and compressed at a second pressure. The invention further provides an improved bipolar electrode for fuel cells.
    Type: Application
    Filed: November 1, 2005
    Publication date: May 10, 2007
    Inventors: Takamitsu Saito, Hideaki Horie, Taketo Kaneko