Patents by Inventor Ryuhei Kodama

Ryuhei Kodama 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).

  • Patent number: 4083994
    Abstract: Choleretics which include, as effective ingredients, one or more than two limonene derivatives selected from p-mentha-1,8-diene, p-menth-1-ene-8,9-diol, 9-acetoxy-p-menth-1-en-8-ol and 9-propionyloxy-p-menth-1-en-8-ol, possess a markedly high choleretic activity as compared to that of the conventional choleretics and ensure a high safety for medical use.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: April 11, 1978
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Kanji Noda, Ryuhei Kodama, Tadanori Yano, Hideaki Inoue, Kazuhide Furukawa, Hirotsune Igimi, Hiroyuki Ide