Patents by Inventor Noriyuki Fujioka

Noriyuki Fujioka 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).

  • Battery sealing inspection method
    Publication number: 20010016278
    Abstract: A battery which has undergone initial charging and discharging is placed inside a sealed vessel, which is evacuated by a vacuum pump. After this evacuated state has been maintained for a while, the density of hydrogen gas within the sealed vessel is measured by a hydrogen density sensor, based on which the presence or absence of a gas escape from the battery is determined. The battery may be heated instead of subjecting it to charging and discharging.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 23, 2001
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO.,LTD.
    Inventors: Masato Onishi, Michio Osawa, Katsuyuki Tomioka, Noriyuki Fujioka, Tomoharu Saito
  • Method of manufacturing electrode plates for batteries
    Publication number: 20010014999
    Abstract: After joining strips of lead plates in a lengthwise direction to a strip of porous metal sheet having a three-dimensional structure, the metal sheet is rolled entirely or in the vicinity of the lead plates. The porous metal sheet is then cut into several electrode substrates, which are coated with active materials and further cut into several electrode plates having a lead plate on one side thereof.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 23, 2001
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Jun Matsumura, Hiroshi Inoue, Mitsugu Takaki, Noriyuki Fujioka, Munehisa Ikoma, Kohei Suzuki
  • Storage battery
    Patent number: D437287
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: February 6, 2001
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinji Hamada, Noriyuki Fujioka, Munehisa Ikoma