Patents by Inventor Shusaku KATO

Shusaku KATO 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).

  • Publication number: 20200200701
    Abstract: A gas sensor has a sensor element, a main metal fitting and a buffer fitting made of metal materials. The sensor element has a solid electrolyte body of a cylindrical shape, an outer electrode formed on at least an outer peripheral surface of the solid electrolyte body and a front end side surface of the projecting part, and a porous ceramic layer formed on the front end side surface of the projecting part. The main metal fitting has an insert hole through which the sensor element is inserted and a stair-shaped part projects inwardly from an inner peripheral surface of the insert hole toward a radial direction of the main metal fitting. The buffer fitting is arranged between the porous ceramic layer and the stair-shaped part, and the metal materials which form the buffer fitting have a depassivation pH value of less than 1.0.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventors: Ryoji FUJIWARA, Shusaku KATO