Patents by Inventor Bhaskar Dutta

Bhaskar Dutta 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).

  • Publication number: 20140026730
    Abstract: Direct metal deposition (DMD) is used to fabricate knife edges with extended service life. A metal alloy powder is deposited along a blank and melted with a laser beam so that the powder solidifies into a strip of material having a hardness and/or wear resistance greater than that of the starting material. The piece is then finished to produce a sharp edge in the solidified material. The powder may be melted while it is being deposited, or it may be melted after being deposited. A slot or groove may be formed in the blank with the metal alloy powder being deposited into the slot or groove. A hardened steel alloy powder is deposited onto a mild steel blank. For example, a tool steel or vanadium steel powder may be deposited onto a 1018 steel blank. An invention line-beam nozzle may be used for deposition and/or powder melting.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 30, 2014
    Inventors: Bhaskar Dutta, Harshad Natu, W. Swenson, Jyoti Mazumder
  • Publication number: 20110087436
    Abstract: A method and system for analyzing a plurality of groups of time-series gene expressions including determining a time-dependent score that comprises a difference between the gene expression in the first group at a given time point and the gene expression in the second group at the given time point, determining an expected difference parameter that comprises a difference between a mean expression of the gene in a third group of samples and a mean expression of the gene in a fourth group of samples, created by randomly dividing the samples into two equal groups, comparing a difference between the time-dependent score and the expected difference parameter to a threshold at the given time point, determining the significant genes at each time point on the basis of the comparison.
    Type: Application
    Filed: November 17, 2006
    Publication date: April 14, 2011
    Inventors: Maria Klapa, Bhaskar Dutta
  • Publication number: 20100325902
    Abstract: Direct metal deposition (DMD) is used to fabricate knife edges with extended service life. A metal alloy powder is deposited along a blank and melted with a laser beam so that the powder solidifies into a strip of material having a hardness and/or wear resistance greater than that of the starting material. The piece is then finished to produce a sharp edge in the solidified material. The powder may be melted while it is being deposited, or it may be melted after being deposited. A slot or groove may be formed in the blank with the metal alloy powder being deposited into the slot or groove. A hardened steel alloy powder is deposited onto a mild steel blank. For example, a tool steel or vanadium steel powder may be deposited onto a 1018 steel blank. An invention line-beam nozzle may be used for deposition and/or powder melting.
    Type: Application
    Filed: March 26, 2010
    Publication date: December 30, 2010
    Inventors: Bhaskar Dutta, Harshad Natu, W. Swenson, Jyoti Mazumder