Patents by Inventor Shin-Ichiro Hirai

Shin-Ichiro Hirai 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).

  • Spherical granules having core and their production
    Patent number: 5026560
    Abstract: The spherical granules having a core coated with spraying powder containing a drug and low substituted hydroxypropylcellulose, because of their excellent hardness, can be coated further evenly, (e.g. sustained release coating, gastric coating, enteric coating), and at the time the granules are excellent in disintegration.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: June 25, 1991
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Tadashi Makino, Tetsuro Tabata, Shin-ichiro Hirai
  • Pharmaceutical composition and its rectal use
    Patent number: 4670419
    Abstract: A pharmaceutical composition containing a hydrophilic drug which is poorly absorbable through the gastrointestinal tract, and cyclodextrin, increases the absorbability of the drug into the mammalian body when administered by a non-oral or non-injection route.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: June 2, 1987
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yoshiaki Uda, Shin-ichiro Hirai, Takatsuka Yashiki
  • Pharmaceutical composition and its nasal or vaginal use
    Patent number: 4659696
    Abstract: A pharmaceutical composition containing a hydrophilic drug which is poorly absorbable through the gastrointestinal tract, and cyclodextrin, increases the absorbability of the drug into the mammalian body when administered by a non-oral or non-injection route.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: April 21, 1987
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shin-ichiro Hirai, Hiroaki Okada, Takatsuka Yashiki
  • Antibacterial solid composition for oral administration
    Patent number: 4616008
    Abstract: This invention relates to an antibacterial solid composition for oral administration which comprises a lipid soluble cephalosporin compound and a cyclodextrin. The said composition provides much increased in vivo absorbability of a non-ester form of the cephalosporin compound. This composition is useful for prevention and treatment of bacterial infections.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: October 7, 1986
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shin-ichiro Hirai, Tadashi Makino, Hiroyoshi Koyama
  • Stable insulin preparation for nasal administration
    Patent number: 4153689
    Abstract: Nasal administration of insulin is achieved by the use of an aqueous solution whose pH value is not higher than 4.7.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: May 8, 1979
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shin-Ichiro Hirai, Toshiaki Ikenaga, Tai Matsuzawa