Patents by Inventor Tozaburo Inano

Tozaburo Inano 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).

  • Filling materials for heating elements
    Patent number: 4129774
    Abstract: A heating element consisting of a metal pipe, an electric resistance conductor inserted into the metal pipe and a heat resistant insulating material filled between said metal pipe and said electric resistance conductor, characterized in that said heat resistant insulating material is one obtained by coating a first insulating material such as particulate fused magnesia with a second insulating material having a lower melting temperature than that of the first insulating material such as a silicone resin, which has been molten, can maintain an insulation resistance of at least 10.sup.3 M.OMEGA. in an atmosphere at 40.degree. C and a relative humidity of 90%.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: December 12, 1978
    Assignee: Hitachi Heating Appliances Co., Ltd.
    Inventors: Tozaburo Inano, Katsuhiro Yamazaki, Minoru Otake