Patents by Inventor Eiji Owada

Eiji Owada 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).

  • Electric infrared heater having a gas permeable electroformed porous metallic panel coated with a porous ceramic far-infrared radiating layer
    Patent number: 5058196
    Abstract: An electric far-infrared heater has a plate-like porous metallic panel formed by an electroforming process installed in a box-like housing over an electric heating element therein. The panel is heated by the element and has its outer surface covered by a porous ceramic far-infrared emitting layer of Al.sub.2 O.sub.3, TiO.sub.2, Cr.sub.2 O.sub.3, MgO, ZrO.sub.2, SiO.sub.2 or mixtures thereof. A stream of gas supplied to the interior of the housing is heated by the element and passes through the porous panel and far-infrared layer for discharge onto the object being heated.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: October 15, 1991
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Kisaku Nakamura, Shigeru Okuyama, Eiji Owada, Yoshihiro Nishibori