Patents by Inventor Osamu Yumimoto

Osamu Yumimoto 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).

  • Silver oxide cell and its manufacture
    Patent number: 4247606
    Abstract: A silver oxide cell which comprises a positive electrode comprising a shaped body of silver oxide as a main positive active material, a negative electrode and an alkaline electrolyte, characterized in that the shaped body is a molded product of a composition comprising particles of silver oxide and particles of manganese dioxide, both particles having a certain particle size distribution, so that a detectable voltage difference is produced prior to complete consumption of the discharge capacity of the cell, whereby the termination of the discharge capacity of the cell can be anticipated.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: January 27, 1981
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshio Uetani, Akio Shimizu, Kozo Kajita, Osamu Yumimoto, Satoru Kuwano