Patents by Inventor Shigefumi Ohta

Shigefumi Ohta 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).

  • Disposable diaper for animals and method of manufacture
    Patent number: 5954015
    Abstract: A diaper for animals includes an inner permeable sheet, an outer water-proof sheet, an absorbent material located between the permeable sheet and the water-proof sheet and a tail area defined by a line of weakness in the water-proof sheet. The tail area is located at a place on the diaper that corresponds to the location of an animal's tail when the diaper is worn by an animal. A hole may be manually formed in the water-proof sheet for accommodating the tail of an animal by manually separating the water-proof sheet along the line of weakness.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: September 21, 1999
    Assignee: Ohta Eizai Co., Ltd.
    Inventor: Shigefumi Ohta