Patents by Inventor Ashish Dasgupta

Ashish Dasgupta 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).

  • Alloy based laser welding
    Patent number: 6479168
    Abstract: A method is disclosed for laser lap welding a pair of metal members together. At least one of the pair of metals having a protective metal layer. Each of the metal members having a melt temperature greater than the melt temperature of the protective metal layer. The method includes placing one end of the pair of metal members in an overlapping relation to an other end of the pair of metal members to form an overlapping section. The method also includes inserting a metal alloying agent between the pair of metal members of the overlapping section to form a gap therebetween. A laser welder is used to join the pair of metal members and the alloy agent together so that the protective metal layer and the alloying agent are melted to form an alloy layer between the pair of metal members.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: November 12, 2002
    Assignee: The Regents of The University of Michigan
    Inventors: Jyoti Mazumder, Ashish Dasgupta, Michael Bembenek
  • ALLOY BASED LASER WELDING
    Publication number: 20020142184
    Abstract: A method is disclosed for laser lap welding a pair of metal members together. At least one of the pair of metal members having a protective metal layer. Each of the metal members having a melt temperature greater than the melt temperature of the protective metal layer. The method includes placing one end of the pair of metal members in an overlapping relation to an other end of the pair of metal members to form an overlapping section. The method also includes inserting a metal alloying agent between the pair of metal members of the overlapping section to form a gap therebetween. A laser welder is used to join the pair of metal members and the alloying agent together so that the protective metal layer and the alloying agent are melted to form an alloy layer between the pair of metal members.
    Type: Application
    Filed: April 3, 2001
    Publication date: October 3, 2002
    Inventors: Jyoti Mazumder, Ashish Dasgupta, Michael Bembenek