Patents by Inventor Kouichi Ikeshima

Kouichi Ikeshima 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).

  • High strength ceramic honeycomb structure
    Patent number: 4810554
    Abstract: A high strength ceramic honeycomb structure includes a number of quadrilateral cells arranged adjacent to each other. Triangular cells are arranged in a zone in the proximity of an outer circumference of the honeycomb structure. Partitions of the triangular cells are oblique to partitions forming the quadrilateral cells and extending substantially toward a center of the honeycomb structure. The oblique partitions of the triangular cells serve to improve the isostatic strength of the honeycomb structure and to decrease the pressure losses.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: March 7, 1989
    Assignee: NGK Insulators, Ltd.
    Inventors: Isao Hattori, Kouichi Ikeshima