Patents by Inventor Kazutoshi Kotaki

Kazutoshi Kotaki 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).

  • Package with freshness keeping agent sack
    Patent number: 4897273
    Abstract: A package of a food or a similar product which has to be preserved in fresh state. The package contains a sack charged with a freshness keeping agent for keeping the product fresh together with the product. The package comprises a carrier seat provided in the package and carrying the sack of freshness keeping agent fixed thereto, the seat having one end integrally heat-welded in one of the heat-sealed portions of the package and the other end integrally heat-welded in the other of the heat-sealed portions of the package.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: January 30, 1990
    Assignee: Mitsubishi Gas Chemical Co., Inc.
    Inventors: Kazutoshi Kotaki, Syuji Wakamatsu, Tadahiko Egawa, Yoshikazu Morita, Kou Iwata