Patents by Inventor Motohiko Arakawa

Motohiko Arakawa 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).

  • Method for producing a base of a catalyst carrier for automobile exhaust gas-purification
    Patent number: 4752599
    Abstract: In a carrier for a catalyst for purifying exhaust gas, a honeycomb is formed by coiling a corrugated sheet and a flat sheet together, and is mounted in an outer cylinder. An Al (alloy)-clad foil or hot-dip Al (alloy) galvanized foil is used to form the honeycomb, which is heat treated in a vacuum or a reducing atmosphere to simultaneously bond the corrugated sheet and flat sheet together and also bond the honeycomb to the outer cylinder, and to diffuse Al into the foil.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: June 21, 1988
    Assignees: Nippon Steel Corporation, Nippon Kinzoku Co., Ltd.
    Inventors: Yasushi Nakamura, Mikio Yamanaka, Keiichi Ohmura, Motohiko Arakawa, Toshiyuki Yashiro, Masaki Izumi