Patents by Inventor Syoji Kitahara

Syoji Kitahara 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).

  • Method of jointing porous building plates
    Patent number: 5368665
    Abstract: A method of applying porous building plates includes applying plate-like porous building plates having pores on the surfaces and then jointing them by means of a coated joint method. In the method, the pores on the surfaces of the porous building plates are packed with an acid soluble substance and then the plates are joined by means of a coated joint method. Subsequently, the surfaces of the porous building plates are washed with an acid.
    Type: Grant
    Filed: December 1, 1992
    Date of Patent: November 29, 1994
    Assignee: INAX Corporation
    Inventors: Akihisa Koyama, Syoji Kitahara, Tomonori Honda