Patents by Inventor Shigeo Yahara

Shigeo Yahara 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).

  • Heat generating body
    Patent number: 4516564
    Abstract: A heat generating body suitable for use as a body warmer or the like. The heat generating body is composed of a closed bag locally provided with at least one air permeable portion constituted by a group of fine pores of a diameter equivalent of not more than 20 microns, and a heat generating composition accommodated in the bag.
    Type: Grant
    Filed: September 14, 1982
    Date of Patent: May 14, 1985
    Assignee: Japan Pionics Co., Ltd.
    Inventors: Yasuhiko Koiso, Kenji Ohtsuka, Shigeo Yahara