Patents by Inventor Craig J. Hasegawa

Craig J. Hasegawa 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).

  • Patent number: 6179988
    Abstract: This invention relates to a process for making wire, comprising: (A) forming a circular disk of electrodeposited copper, (B) rotating said disk about its center axis; (C) feeding a cutting tool into the peripheral edge of said disk to cause a strip of copper to peel from said disk; and (D) slitting said strip of copper to form a plurality of strands of copper wire.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: January 30, 2001
    Assignee: ElectroCopper Products Limited
    Inventors: Peter Peckham, Craig J. Hasegawa
  • Patent number: 5679232
    Abstract: This invention relates to a process for making metal wire, comprising: (A) forming metal foil; (B) cutting said foil to form at least one strand of metal wire; and (C) shaping said strand of wire to provide said strand with desired cross-sectional shape and size. This process is particularly suitable for making copper wire, especially copper wire having a very thin diameter (e.g., about 0.0002 to about 0.02 inch).
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: October 21, 1997
    Assignee: ElectroCopper Products Limited
    Inventors: Robert J. Fedor, Peter Peckham, Sharon K. Young, Michael A. Eamon, Roger N. Wright, Stephen J. Kohut, Craig J. Hasegawa, Susan S. Enos, Robert D. DeWitt
  • Patent number: 5454926
    Abstract: This invention relates to electrodeposited copper foil having an elongation measured at 180.degree. C. in excess of about 5.5%, an ultimate tensile strength measured at 23.degree. C. in excess of about 60,000 psi, and a matte-side R.sub.tm in the range of about 4.5 to about 18 .mu.m. This invention also relates to a process for making electrodeposited copper foil which comprises: preparing a copper deposition bath comprising water, copper ions and sulfate ions, said bath containing less than about 20 ppm chloride ions; and applying electric current to said bath to electrodeposit copper from said bath using a current density in the range of about 200 to about 3000 amps per square foot.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: October 3, 1995
    Assignee: Gould Electronics Inc.
    Inventors: Sidney J. Clouser, Dino F. DiFranco, Craig J. Hasegawa
  • Patent number: 5431803
    Abstract: This invention is directed to a controlled low profile electrodeposited copper foil. In one embodiment this foil has a substantially uniform randomly oriented grain structure that is essentially columnar grain free and twin boundary free and has an average grain size of up to about 10 microns. In one embodiment this foil has an ultimate tensile strength measured at 23.degree. C. in the range of about 87,000 to about 120,000 psi and an elongation measured at 180.degree. C. of about 15% to about 28%.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: July 11, 1995
    Assignee: Gould Electronics Inc.
    Inventors: Dino F. DiFranco, Shiuh-kao Chiang, Craig J. Hasegawa
  • Patent number: 5421985
    Abstract: This invention relates to electrodeposited copper foil having an elongation measured at 180.degree. C. in excess of about 5.5%, an ultimate tensile strength measured at 23.degree. C. in excess of about 60,000 psi, and a matte-side R.sub.tm in the range of about 4.5 to about 18 .mu.m. This invention also relates to a process for making electrodeposited copper foil which comprises: preparing a copper deposition bath comprising water, copper ions and sulfate ions, said bath containing less than about 20 ppm chloride ions; and applying electric current to said bath to electrodeposit copper from said bath using a current density in the range of about 200 to about 3000 amps per square foot.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: June 6, 1995
    Assignee: Gould Inc.
    Inventors: Sidney J. Clouser, Dino F. DiFranco, Craig J. Hasegawa