Patents by Inventor Katsutoshi Murase

Katsutoshi Murase 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).

  • Polysaccharide derivative/magnetic metal oxide composite
    Patent number: 6165378
    Abstract: The present invention provides a polysaccharide-magnetic metal oxide complex consisting of a polysaccharide derivative obtained by carboxyalkyl-etherifying and unsubstituted or substituted aminoalkyl-etherifying a polysaccharide (the above carboxy group and/or amino group may be of a salt form) and a magnetic metal oxide. The above complex has a slow blood clearance and a low toxicity and is useful as a nuclear magnetic resonance imaging contrast medium.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: December 26, 2000
    Assignee: Meito Sangyo Kabushiki Kaisha
    Inventors: Shigeo Maruno, Masakatsu Hasegawa, Takamasa Hanaichi, Katsutoshi Murase, Hisato Yamada, Hideo Nagae, Kyoji Kito