Patents by Inventor Tokuo Shinomiya

Tokuo Shinomiya 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 manufacturing paper-like synthetic sheet
    Patent number: 3953282
    Abstract: A polyolefin micro-flake aggregation which is easily micro-flakable from the aggregation into a plurality of irregularly shaped micro-flakes suitable for producing synthetic paper, is manufactured from a solution of 5 - 40% by weight of polyolefin such as polyethylene and polypropylene in a solvent such as hydrocarbons and chlorinated hydrocarbons in the presence of a surface active compound of at least 0.01% based on the weight of the polyolefin by spraying the solution which is at a temperature of at least 100.degree.C from a closed container into atmosphere through an orifice.A polyolefin synthetic paper is formed from a suspension of the micro-flakes in an organic liquid such as hydrocarbons and chlorinated hydrocarbons which can swell or partially dissolve the polyolefin.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: April 27, 1976
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Yoshijiro Tabara, Hiroshi Akiyama, Masayuki Igawa, Tadashi Maekawa, Tokuo Shinomiya
  • 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
  • Process for manufacturing a synthetic microflake aggregate
    Patent number: 3936512
    Abstract: A polyolefin micro-flake aggregation which is easily micro-flakable from the aggregation into a plurality of irregularly shaped micro-flakes suitable for producing synthetic paper, is manufactured from a solution of 5 - 40% by weight of polyolefin such as polyethylene and polypropylene in a solvent such as hydrocarbons and chlorinated hydrocarbons in the presence of a surface active compound of at least 0.01% based on the weight of the polyolefin by spraying the solution which is at a temperature of at least 100.degree.C from a closed container into atmosphere through an orifice.A polyolefin synthetic paper is formed from a suspension of the micro-flakes in an organic liquid such as hydrocarbons and chlorinated hydrocarbons which can swell or partially dissolve the polyolefin.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: February 3, 1976
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshijiro Tabara, Hiroshi Akiyama, Masayuki Igawa, Tadashi Maekawa, Tokuo Shinomiya