Patents by Inventor Hirokazu Makita

Hirokazu Makita 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).

  • Rapid-releasing oral particle pharmaceutical preparation with unpleasant taste masked
    Patent number: 5082669
    Abstract: A rapid-releasing oral particle pharmaceutical preparation with its unpleasant taste masked comprising a core and a film layer coating the core, the core at least containing a drug having an unpleasant taste and a water-swelling agent, and the film layer at least containing ethylcellulose and a water-soluble substance, the amount of the drug in the core being at most 40% (based on the final particle preparation and so on), the amount of the water-swelling agent being about 35% to about 70%, the amount of ethylcellulose in the film layer being about 3 to about 11%, and the amount of the water-soluble substance being about 0.1 to about 0.8 times the weight of the ethylcellulose.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: January 21, 1992
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Yoshimi Shirai, Kiyomi Sogo, Yoshihiko Nakamura, Hiroshi Fujioka, Hirokazu Makita