Patents by Inventor Yuichi Yazawa

Yuichi Yazawa 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).

  • Etoposide preparations
    Patent number: 5609882
    Abstract: This invention relates to an etoposide preparation containing an etoposide composition comprising an etoposide, polyvinylpyrrolidone, and water-soluble cellulose ether derivative wherein the proportion of the respective components is about 0.25 to 2 parts by weight for polyvinylpyrrolidone and about 0.0028 to 0.2 parts by weight for the water-soluble cellulose ether derivative per 1 part by weight of the etoposide, and about 10 to 20% (w/w) for the etoposide in the whole amount of the composition.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: March 11, 1997
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Minoru Aoki, Minoru Nakada, Yuichi Yazawa, Gen'ichi Izu, Takashi Terada
  • Nitroglycerin spray
    Patent number: 4919919
    Abstract: The present invention relates to a nitroglycerin spray prepared by filling a solution comprising nitroglycerin, ethanol and water and having a pH of about 2.4 to about 6.7 into a liquid-pressurized container.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: April 24, 1990
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yukio Aouda, Hiroshi Ninomiya, Genichi Izu, Yuichi Yazawa, Megumi Tachibana