Patents by Inventor Genzo Hashizume

Genzo Hashizume 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).

  • Novel ettringite whiskers, production and uses
    Patent number: 4255398
    Abstract: This disclosure deals with ettringite whiskers, methods of synthesizing such whiskers and ettringite whisker composites. The ettringite whiskers, having a new crystal form, are 1-2 .mu.m in diameter, 50-100 .mu.m in length and approximately 30-50 of aspect ratio. The ettringite whiskers are especially useful in industry as a high tensile strength reinforcement, they increase self-extinguishability and the productive capacity of making sheets, boards of the like.
    Type: Grant
    Filed: June 26, 1979
    Date of Patent: March 10, 1981
    Assignee: Hyogo Prefectural Government of Japan
    Inventors: Minoru Tanaka, Genzo Hashizume, Hiroshi Matsui, Satoru Nakagawa