Patents by Inventor Kaichi Okami

Kaichi Okami 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).

  • Alkaline storage battery having an improved current collector tab
    Patent number: 5238757
    Abstract: An alkaline storage battery such as a sealed nickel-cadmium storage battery has an improved upper current collector tab welded to the terminal edge of a spirally wound electrode of a spirally coiled electrode assembly. The current collector tab comprises a current collecting tab and a lead tab. The current collecting tab is higher in electric resistance than the lead tab, so that the current collecting tab can easily be welded to the terminal edge of the electrode of the electrode assembly. The lead tab provides a low internal resistance to allow charging and discharging electric currents to flow easily for improved high-rate discharge performance of the battery.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: August 24, 1993
    Assignee: Mstsushita Electric Industrial Co., Ltd.
    Inventors: Norio Suzuki, Hiromi Maruyama, Kaichi Okami