Patents by Inventor Akemi Joma

Akemi Joma 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).

  • Projection screen
    Patent number: 4006965
    Abstract: A screen comprises a fabric formed by weaving transparent fiber bundle thereinto and a metallic layer formed on the whole surface of one side of said fabric and having an optically high reflectability.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: February 8, 1977
    Inventors: Ryosaku Takada, Akemi Joma