Patents by Inventor Tooichiro Hirano

Tooichiro Hirano 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).

  • Processed starch, process for preparing same and use of same in medicines
    Patent number: 4447601
    Abstract: A processed starch useful as a disintegrant to be incorporated into medicines is provided. The processed starch consists essentially of substantially non-birefringent starch powder which substantially retains the shell film structure of green starch granules. The starch powder has a particle size distribution substantially free of a fraction having a size of 48 Tyler standard sieve mesh or having a larger size, and has a bulk density of at least about 0.25 g/cc, a cold water-soluble component content of less than 10% by weight, a swelling volume of about 3 to about 15 ml/g and a water retention of at least about 2.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: May 8, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kimihiko Takeo, Tooichiro Hirano, Fumihiko Sato
  • Processed starch, process for preparing same and use of same in medicines
    Patent number: 4383111
    Abstract: A processed starch useful as a disintegrant to be incorporated into medicines is provided. The processed starch consists essentially of substantially non-birefringent starch powder which substantially retains the shell film structure of green starch granules. The starch powder has a particle size distribution substantially free of a fraction having a size of 48 Tyler standard sieve mesh or having a larger size, and has a bulk density of at least about 0.25 g/cc, a cold water-soluble component content of less than 10% by weight, a swelling volume of about 3 to about 15 ml/g and a water retention of at least about 2.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: May 10, 1983
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kimihiko Takeo, Tooichiro Hirano, Fumihiko Sato