Patents by Inventor Yosimi Komatu

Yosimi Komatu 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).

  • Secondary cell using system
    Publication number: 20010020927
    Abstract: A system using a secondary cell having at least one of a heat source, motor, controlling circuit, driving circuit, LSI, IC and display element, each having a capacity of 0.5 to 50 kWh, and secondary cells, wherein at least one of the secondary cells includes a positive electrode and a negative electrode and has a discharge time of at least 15 minutes at a discharge of 580 W/l or more, and at least one of the positive electrode and the negative electrode containing a particle with cracks.
    Type: Application
    Filed: February 16, 2001
    Publication date: September 13, 2001
    Inventors: Kyoko Ikawa, Yasushi Muranaka, Yosimi Komatu, Tatsuo Horiba, Yoshiro Mikami
  • Secondary battery
    Patent number: 5922491
    Abstract: A secondary battery having a large capacity, and a preferable characteristics in both rapid charging and rapid discharging comprises a positive electrode a negative electrode, and an electrolyte which separates said electrodes, in which any one of the positive electrode or negative electrode contains particles composed of a material contributing to a charge-discharge reaction, and the particles comprise at least two phases and fine pores which are formed by dissolving at least one of the phases.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: July 13, 1999
    Assignees: Hitachi, Ltd., Hitachi Chemical Co., Ltd.
    Inventors: Kyoko Ikawa, Yasushi Muranaka, Tatsuo Horiba, Yosimi Komatu