Patents by Inventor Heizi Ikushima

Heizi Ikushima 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).

  • Stabilized oily preparation of 1.alpha.-hydroxy-vitamin D and method for manufacturing the same
    Patent number: 4248867
    Abstract: A stabilized oily preparation of a 1.alpha.-hydroxy-vitamin D for oral administration comprising a 1.alpha.-hydroxy-vitamin D and, as oily diluent, a triglyceride of saturated middle chain fatty acid which has been treated under certain conditions, and a method for manufacturing the same are disclosed.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: February 3, 1981
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Heizi Ikushima, Kazuo Igusa, Sadao Bessho
  • Stabilized soft gelatin capsule composition of 1 .alpha.-hydroxy-vitamin D
    Patent number: 4164569
    Abstract: A soft gelatin capsule preparation of a 1.alpha.-hydroxy-vitamin D which contains sorbic acid or its salt and a process for preparing the preparation are disclosed. Sorbic acid or its salt which is incorporated in a soft gelatin capsule and/or an oily diluent acts as a preservative for gelatin and as a stabilizer for the vitamin D.
    Type: Grant
    Filed: April 8, 1977
    Date of Patent: August 14, 1979
    Assignee: Chugau Seiyaku Kabushiki Kaisha
    Inventors: Heizi Ikushima, Hiroto Nakano, Kazuo Igusa, Sadao Bessho