Patents by Inventor Naoaki Fujita

Naoaki Fujita 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).

  • Fiber reinforced inorganic hardened body and process for its production
    Patent number: 4468429
    Abstract: A fiber reinforced inorganic hardened body comprises an inorganic hardened material and a fiber reinforcing material, wherein the fiber reinforcing material has a water permeability of from 5 to 27 l/min. and a volume reduction rate of at most 10%.
    Type: Grant
    Filed: October 6, 1982
    Date of Patent: August 28, 1984
    Assignee: Asahi Glass Company Ltd.
    Inventors: Ryuichiro Takeda, Naoaki Fujita