Patents by Inventor Katuji Shindo

Katuji Shindo 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).

  • Lightning arrester
    Patent number: 4502089
    Abstract: A lightning arrester comprises a plurality of column blocks disposed in parallel each of which has groups of a number of stacked nonlinear resistance elements and spacers interposed between the element groups, in which the element groups of the blocks are electrically connected in series by jumper conductors so as to form a series resistance and the spacers are formed of nonlinear resistance elements which can absorb energy, so that the arrester, as a whole, can absorb a larger amount of energy.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: February 26, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Jun Ozawa, Katuji Shindo, Shingo Shirakawa
  • Surge arrester with a bypass gap
    Patent number: 4472754
    Abstract: A surge arrester having a first non-linear resistor block, a second non-linear resistor block connected in series with the first non-linear resistor block, a bypass gap connected in parallel with the second non-linear resistor block, and a linear resistor connected in parallel with at least one of the first and second non-linear resistor blocks.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: September 18, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Akio Mizukoshi, Katuji Shindo, Yoshi Akatsu, Jun Ozawa