Patents by Inventor Yoshiharu Ootsuka

Yoshiharu Ootsuka 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).

  • Magnetic field measurement apparatus and magnetic field measurement method
    Patent number: 11933865
    Abstract: A magnetic resonance member 1 includes a crystal structure and is capable of electron spin quantum operations with microwaves of different frequencies corresponding to arrangement orientations of a vacancy and an impurity in a crystal lattice. A magnetic field transmission unit 4 senses a measurement target magnetic field at plural measurement positions different from each other, and applies application magnetic fields corresponding to the measurement target magnetic field sensed at the plural measurement positions to the magnetic resonance member 1 along respective different directions corresponding to the aforementioned arrangement orientations. A measurement control unit 21 controls a high frequency power supply 12, and determines detection values detected by a detecting device (an irradiating device 5 and a light receiving device 6) of the physical phenomena corresponding to the plural measurement positions.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: March 19, 2024
    Assignees: SUMIDA CORPORATION, Kyoto University
    Inventors: Yoshiharu Yoshii, Masateru Hashimoto, Tsutomu Ootsuka, Shingo Hamada, Yuki Takemura, Kan Hayashi, Norikazu Mizuochi
  • Binder composition for positive electrodes
    Patent number: 8513349
    Abstract: A binder composition for the positive electrode of an electric storage device. The composition contains polymer alloy particles composed of: a polymer (A) having a recurring unit derived from vinylidene fluoride, ethylene tetrafluoride, propylene hexafluoride, or mixtures thereof; a polymer (B) having a recurring unit derived from an unsaturated carboxylic acid ester; and water. The average diameter of the polymer alloy particles is 50 to 400 nm. The polymer alloy particles are synthesized by absorbing a monomer (b) to the polymer (A) and polymerizing the monomer (b) to synthesize the polymer (B).
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: August 20, 2013
    Assignee: JSR Corporation
    Inventors: Yoshiharu Ootsuka, Hironori Kitaguchi, Nobuyuki Fujihara
  • BINDER COMPOSITION FOR POSITIVE ELECTRODES
    Publication number: 20120309892
    Abstract: A binder composition for the positive electrode of an electric storage device. The composition contains polymer alloy particles composed of: a polymer (A) having a recurring unit derived from vinylidene fluoride, ethylene tetrafluoride, propylene hexafluoride, or mixtures thereof; a polymer (B) having a recurring unit derived from an unsaturated carboxylic acid ester; and water. The average diameter of the polymer alloy particles is 50 to 400 nm. The polymer alloy particles are synthesized by absorbing a monomer (b) to the polymer (A) and polymerizing the monomer (b) to synthesize the polymer (B).
    Type: Application
    Filed: December 28, 2011
    Publication date: December 6, 2012
    Applicant: JSR CORPORATION
    Inventors: Yoshiharu Ootsuka, Hironori Kitaguchi, Nobuyuki Fujihara