Patents by Inventor Ryuichi Yasuki

Ryuichi Yasuki 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).

  • Exothermic composition
    Patent number: 4649895
    Abstract: Exothermic compositions which contain iron powders treated with sulfur-containing compounds as agents to be oxydized and mugwort leaf dry powders as a part of water holding agents. According to the compositions there are provided body warmers having an excellent initial heat generation, water holding capacity, and handling property.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: March 17, 1987
    Assignee: Kiribai Chemical Industry Co.
    Inventors: Ryuichi Yasuki, Toshitsugu Sahara