Patents by Inventor Kaoru Ojima

Kaoru Ojima 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: 8715855
    Abstract: A method of producing a material capable of electrochemically storing and releasing a large amount of lithium ions is provided. The material is used as an electrode material for a negative electrode, and includes silicon or tin primary particles composed of crystal particles each having a specific diameter and an amorphous surface layer formed of at least a metal oxide, having a specific thickness. Gibbs free energy when the metal oxide is produced by oxidation of a metal is smaller than Gibbs free energy when silicon or tin is oxidized, and the metal oxide has higher thermodynamic stability than silicon oxide or tin oxide. The method of producing the electrode material includes reacting silicon or tin with a metal oxide, reacting a silicon oxide or a tin oxide with a metal, or reacting a silicon compound or a tin compound with a metal compound to react with each other.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 6, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Kawakami, Norishige Kakegawa, Akio Kashiwazaki, Toshiaki Aiba, Rie Ueno, Mikio Shimada, Kaoru Ojima, Takashi Noma
  • Publication number: 20130010829
    Abstract: A temperature measuring probe is characterized in that it has a film 4 on a part of a first surface of a cantilever 2 having an opening in the center, the film 4 is formed of a material different in coefficient of thermal expansion from the cantilever 2, it has a film 5 on a part of a surface of the cantilever 2 opposite to the first surface, the film 5 is formed of the same material as the film 4, and when the films 4 and 5 are projected onto a plane parallel to the cantilever 2, the projection image of the film 4 and the projection image of the film 5 do not coincide. Thus, a temperature measuring probe and a temperature measuring apparatus can be made that can be used with a general-purpose scanning probe microscope and is insusceptible to thermal deformation of a sample.
    Type: Application
    Filed: May 13, 2011
    Publication date: January 10, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kaoru Ojima
  • Publication number: 20120321949
    Abstract: A method of producing a material capable of electrochemically storing and releasing a large amount of lithium ions is provided. The material is used as an electrode material for a negative electrode, and includes silicon or tin primary particles composed of crystal particles each having a specific diameter and an amorphous surface layer formed of at least a metal oxide, having a specific thickness. Gibbs free energy when the metal oxide is produced by oxidation of a metal is smaller than Gibbs free energy when silicon or tin is oxidized, and the metal oxide has higher thermodynamic stability than silicon oxide or tin oxide. The method of producing the electrode material includes reacting silicon or tin with a metal oxide, reacting a silicon oxide or a tin oxide with a metal, or reacting a silicon compound or a tin compound with a metal compound to react with each other.
    Type: Application
    Filed: August 31, 2012
    Publication date: December 20, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Soichiro Kawakami, Norishige Kakegawa, Akio Kashiwazaki, Toshiaki Aiba, Rie Ueno, Mikio Shimada, Kaoru Ojima, Takashi Noma
  • Publication number: 20100233384
    Abstract: A solution containing polymer-bound metal nanoparticles is deposited onto a substrate, at least the surface of which is insulating, to form a pattern, the substrate is dried, and then the pattern is subjected to plasma exposure.
    Type: Application
    Filed: March 20, 2007
    Publication date: September 16, 2010
    Applicants: JAPAN SCIENCE AND TECHONOLOGY AGENCY, OSAKA UNIVERSITY
    Inventors: Kaoru Ojima, Akihiko Takagi, Fumihiko Yamada, Takuya Matsumoto, Tomoji Kawai
  • Publication number: 20090311578
    Abstract: A water repellent catalyst layer for a polymer electrolyte fuel cell, including a water repellent coating film provided on catalyst particles, which are coated with a proton-conductive electrolyte, and a manufacturing method for a water repellent catalyst layer for a polymer electrolyte fuel cell including the steps of: coating catalyst particles with a proton-conductive electrolyte; providing a fluorine-based compound having at least one polar group and having a molecular weight of 10,000 or less on the catalyst particles to form a fluorine compound coating film; and imparting hydrophobic property by stabilizing the fluorine compound coating film. The hydrophobic property is imparted even to the inside of fine pores of the catalyst layer to improve water evacuation performance, so that an effective surface area and a catalyst utilization ratio can be increased.
    Type: Application
    Filed: October 10, 2007
    Publication date: December 17, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shinnosuke Koji, Kazuya Miyazaki, Yoshinobu Okumura, Kaoru Ojima
  • Publication number: 20090162750
    Abstract: A method of producing a material capable of electrochemically storing and releasing a large amount of lithium ions is provided. The material is used as an electrode material for a negative electrode, and includes silicon or tin primary particles composed of crystal particles each having a specific diameter and an amorphous surface layer formed of at least a metal oxide, having a specific thickness. Gibbs free energy when the metal oxide is produced by oxidation of a metal is smaller than Gibbs free energy when silicon or tin is oxidized, and the metal oxide has higher thermodynamic stability than silicon oxide or tin oxide. The method of producing the electrode material includes reacting silicon or tin with a metal oxide, reacting a silicon oxide or a tin oxide with a metal, or reacting a silicon compound or a tin compound with a metal compound to react with each other.
    Type: Application
    Filed: February 27, 2009
    Publication date: June 25, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Soichiro Kawakami, Norishige Kakegawa, Akio Kashiwazaki, Toshiaki Aiba, Rie Ueno, Mikio Shimada, Kaoru Ojima, Takashi Noma
  • Publication number: 20070169881
    Abstract: A method for manufacturing a microelectrode includes one of allocating organic molecules or forming an organic molecular layer on a first substrate, applying a release agent onto a desired pattern formed on a second substrate, attaching an electrode material to the release agent, and bonding a surface of the second substrate to which the electrode material is attached and a surface of the first substrate on which the organic molecules are allocated or the organic molecular layer is formed to transfer the electrode material to the first substrate.
    Type: Application
    Filed: March 28, 2007
    Publication date: July 26, 2007
    Inventors: Takuya MATSUMOTO, Sinji Matsui, Kenichiro Nakamatsu, Kaoru Ojima, Tomoji Kawai