Patents by Inventor Shizuo Arita

Shizuo Arita 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).

  • Patent number: 4302848
    Abstract: A method for wearing and taking off a protective suit which is used when entering the inside of a working zone segregated from the outside thereof. The protective suit has a cylindrical portion made of a film-like fusible material and is designed so that one can get into or out of the suit by passing through the cylindrical portion. When wearing the protective suit, one gets into the suit by passing through the cylindrical portion, with the protective suit being kept joined to an entrance/exit section of the working zone, and then part of the cylindrical portion is fused and closed to segregate the inside of the suit from the outside thereof while sealing the entrance/exit section with a pouch-like member.
    Type: Grant
    Filed: April 8, 1980
    Date of Patent: December 1, 1981
    Assignees: Doryokuro Kakunenryo Kaihatsu Jigyodan, Fujikura Rubber Works, Ltd.
    Inventors: Katsuyuki Otsuka, Jin Ohuchi, Shizuo Arita