Patents by Inventor Shigeyoshi Ikegami

Shigeyoshi Ikegami 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).

  • Food packaging bag
    Patent number: 5376392
    Abstract: The present invention relates to a food packaging bag comprising a water-resistant perforated sheet part which composes of at least a part of an outer layer of the bag, a moisture permeable waterproof film which is laminated by bonding in part to an inside of the perforated sheet part as an inner layer to form a moisture permeable waterproof part, and a waterproof sheet part which composes of the rest of the outer layer part. Further, when, if desired, an absorbent sheet layer is provided on at least a part of the inside of the waterproof sheet part, the functions of the moisture permeable waterproof film such as moisture permeability are scarcely impaired when the packed food is heat-cooked, and the moisture permeable waterproof film weak in strength is seldom broken by scraping distribution or bursting during cooking with heat.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: December 27, 1994
    Assignee: Kohjin Co., Ltd.
    Inventors: Shigeyoshi Ikegami, Hisashi Kojyoh, Iu Uchida, Tadayoshi Yamazaki, Toshiaki Miyajima