Patents by Inventor Shuuzi Sakou

Shuuzi Sakou 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 of welding metals of different kind by laser
    Patent number: 5343014
    Abstract: The present invention is to provide a method for laser welding different kinds of metals by which at least two types of metal members having mutually different laser reflection factor, are put one upon another and welded when the metal members are irradiated with lasers emitted in the superposed direction, comprising a process to put the first metal member on the second metal member, wherein the first metal member has a first laser reflection factor and the second metal member has a second laser reflection factor which is lower than that of the aforementioned first laser reflection factor, and the first and the second metal member are put one upon another through a metal layer and when irradiated with lasers, the aforementioned metal layer is more difficult to melt than the aforementioned second metal member. The method of the present invention further comprises a process in which lasers are irradiated from the aforementioned first metal member side.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: August 30, 1994
    Assignee: Nippondenso Co., Ltd.
    Inventors: Akihiko Ogino, Yoshiyuki Miyase, Shuuzi Sakou, Shinzi Shibata