Patents by Inventor Hidenobu Akutsu

Hidenobu Akutsu 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).

  • Urinary test paper
    Patent number: 5071623
    Abstract: The test paper for urinalysis of the present invention is made up of water-soluble paper which consists of 99-45 weight per cent of carboxymethyl cellulose and 1-55 weight per cent of wood pulp. This water-soluble paper is covered or impregnated with one or more reagents needed for urinalysis in order to form an appropriate shape of spots. The urinary test paper of the present invention can be flushed down a toilet bowl or a urinal in a flush toilet after use thereof.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: December 10, 1991
    Inventor: Hidenobu Akutsu