Patents by Inventor Hiromi Hanai

Hiromi Hanai 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).

  • Disaccharide derivatives used in the treatment of hepatic diseases
    Patent number: 4080442
    Abstract: A pharmaceutical composition containing as its active ingredient a disaccharide derivative having a derivative group of the following formula (1) bonded to a carbon atom of a disaccharide: ##STR1## wherein Y is a member of the group consisting of NH and O; and when Y is NH, Z is a member of the class consisting of --O-- (disaccharide residue) and --O--, with the proviso that one of the two bonds is attached to the other carbon atom of the same disaccharide to which the formula (1) group is bonded, and when Y is O, Z is a member of the class consisting of --NH.sub.2 and --O--, with the proviso that one of the two bonds is attached to a carbon atom of a disaccharide different from that to which the formula (1) group is bonded. The disaccharide derivative can be prepared by reacting a disaccharide with an activating agent selected from the group consisting of the cyanogen halides, organic cyanic acid esters and halogenocarbonic acid alkyl esters.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: March 21, 1978
    Assignee: Meito Sangyo Kabushiki Kaisha
    Inventors: Akihiro Mizutani, Kyoji Kito, Hideki Miyaji, Taketoshi Komori, Takao Ogawa, Hideo Nagae, Hiromi Hanai