Patents Represented by Attorney, Agent or Law Firm Fulwider Patton Utecht & Lee, LLP
  • Ti alloy poppet valve and a method of manufacturing the same
    Patent number: 6623568
    Abstract: A Ti alloy poppet valve consists of a valve stem and a valve head, and is employed as intake or exhaust valve in an internal combustion engine of an automobile. O2 is put into the valve in a furnace at very slight amount and heated to introduce oxygen atoms into titanium of the valve to form a Ti—O interstitial solid solution without making titanium oxides. The valve is strengthened to increase hardness and wear resistance.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: September 23, 2003
    Assignee: Fuji Oozx Inc.
    Inventors: Masahito Hirose, Hiroaki Asanuma