Patents by Inventor Yoshihiro Osajima

Yoshihiro Osajima 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).

  • Process for continuously producing composite porous flakes
    Patent number: 3944639
    Abstract: A process is disclosed whereby porous flakes usable for making paper-like sheets are produced by melting a 10 to 75 parts by weight of thermoplastic polymer, dispersing 25 to 90 parts by weight of finely divided inorganic particles in a solvent capable of dissolving the polymer in an amount of 80 to 95% based on a total weight of the polymer, the inorganic particles and the solvent, at room temperature or lower to prepare a slurry.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: March 16, 1976
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Osajima, Syoji Imao, Tokuo Shinomiya, Sirou Mihara, Michisuke Edamatsu