Patents by Inventor Lloyd Hiromi Hihara

Lloyd Hiromi Hihara 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 electrochemical machining (ECM) of particulate metal-matrix composites (MMcs)
    Patent number: 6110351
    Abstract: A method of machining metal-matrix composite materials using electrochemical machining is provided. The method comprises the steps of: providing a metal matrix composite material in an electrochemical machine, and electrochemically machining the metal-matrix composite material in a nitrate or chloride containing electrolyte at a current density of equal to or greater than approximately 1 A/cm.sup.2. Preferably the metal-matrix composite is comprised of an aluminum alloy or pure Al matrix with ceramic particles, such as silicon carbide.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 29, 2000
    Assignee: University of Hawaii
    Inventors: Lloyd Hiromi Hihara, Philip Panquites, IV