Patents by Inventor Masateru Kodani

Masateru Kodani 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).

  • .alpha.-crystals of cefazolin sodium
    Patent number: 4898937
    Abstract: This invention relates to .alpha.-crystals of cefazolin sodium with a water content in the range of 13.0 to 15.8%, useful as an antibiotic of improved thermal and light stability.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: February 6, 1990
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Toshinobu Uemura, Keiji Kai, Masateru Kodani, Fumiyo Yoshida, Matsuhiko Aratani
  • Time-controlled explosion systems and processes for preparing the same
    Patent number: 4871549
    Abstract: The invention relates to a Time-Controlled Explosion System in which drug release is caused by explosion of a membrane after a definite time period, said System comprising a preparation in the form of a bead or granule, said preparation comprising a core, a drug, swelling agent and an outer membrane of water-insoluble coating material.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: October 3, 1989
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Yoshio Ueda, Takehisa Hata, Hisami Yamaguchi, Satoshi Ueda, Masateru Kodani
  • Preparation of a slow-release drug
    Patent number: 4808416
    Abstract: The invention concerns the preparation of a slow-release drug characterized by the coating of a core comprising a therapeutically active principle by means of a substance which retards its release and by means of an additional layer consisting of an enteric substance.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: February 28, 1989
    Assignee: Laboratories Delagrange
    Inventors: Takehisa Hata, Hisami Yamaguchi, Satoshi Ueda, Masateru Kodani