Patents Assigned to Sumiden Asahi Industries, Ltd.
  • Cold-pressure welding method and metal product welded by the method
    Patent number: 7677430
    Abstract: A welded metal product includes a first metal plate having a first surface and a second surface opposed to the first surface; and a second metal plate being cold-pressure welded with the second surface of the first metal plate by directly pressing the first metal plate with the die. The first surface has a recess portion which is deformed by directly pressing with a die. A hardness of the first metal plate is greater than a hardness of the second metal plate.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: March 16, 2010
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Sumiden Asahi Industries, Ltd.
    Inventors: Kunihiko Watanabe, Toshiaki Suzuki, Shiko Kodama
  • Cold-pressure welding method and metal product welded by the method
    Publication number: 20060016859
    Abstract: A welded metal product includes a first metal plate having a first surface and a second surface opposed to the first surface; and a second metal plate being cold-pressure welded with the second surface of the first metal plate by directly pressing the first metal plate with the die. The first surface has a recess portion which is deformed by directly pressing with a die. A hardness of the first metal plate is greater than a hardness of the second metal plate.
    Type: Application
    Filed: July 21, 2005
    Publication date: January 26, 2006
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMIDEN ASAHI INDUSTRIES, LTD.
    Inventors: Kunihiko Watanabe, Toshiaki Suzuki, Shiko Kodama