Patents by Inventor Tsunehiko Nishiwaki

Tsunehiko Nishiwaki 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).

  • Gas detecting device
    Patent number: 4617821
    Abstract: A gas detecting device principally used for detecting liquor contained in expired gas of a driver of a car. The gas detecting device is of the type wherein an inlet opening for sucking expired gas of an object person for measurement is provided adjacent an end of a cylindrical member, and an air blower for attracting the expired gas thus sucked and a gas detecting element for detecting liquor in the expired gas are contained in said cylindrical member, and comprises an illuminating section connected to said power source for illuminating forwardly of said inlet opening of said cylindrical member. Thus, the gas detecting device is integrally provided with an illuminating function and a gas detecting function.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: October 21, 1986
    Assignee: Nippon Seiki Co., Ltd.
    Inventors: Meiso Yokoyama, Makoto Takahashi, Tsunehiko Nishiwaki, Makoto Imai