Patents by Inventor Hideki Hikawa

Hideki Hikawa 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).

  • Lead acid storage battery
    Patent number: 5075183
    Abstract: A lead acid storage battery comprises a group of electrode plates, wherein a negative plate is enclosed in an enveloped separator joined together at its both edges by welding or mechanical sealing and a glass mat is separately provided between the separator and a positive plate, the glass mat having a width at least equal to the width of the separator except its both edges.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: December 24, 1991
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Osamu Yamaguchi, Hideki Hikawa, Yoshinari Morimoto