Patents by Inventor Mikio Hanioka

Mikio Hanioka 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).

  • Freshness preservative packing material for foodstuffs and method of fixing the freshness preservative substance onto the packing material
    Patent number: 5030510
    Abstract: A packaging material for packing boxes, packing bags and wrapping paper characterized in that a surface of the packaging material is coated with an air pervious tight coating. The coating partially or entirely covers the surface intended for contact with the wrapped contents, and contains grains or minute particles of a freshness preservative substance which is a far-infrared radioactive substance emitting radiation of a wave length of about 3-4 .mu.m at room temperature, a gas adsorptive substance, a substance reactive with oxygen at room temperature or a mixture thereof.Also disclosed is a method of fixing the freshness preservative substance on a packaging material characterized by printing, coating or spraying a coating onto a surface of the packaging material that is to be contacted with the wrapped contents.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: July 9, 1991
    Assignees: Nippon Danbohru Co., Ltd., Yoshimasa Yokoyama
    Inventors: Yoshimasa Yokoyama, Mikio Hanioka