Patents by Inventor Masakazu Teramura

Masakazu Teramura 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).

  • Lead-free copper alloy for casting with excellent mechanical properties
    Patent number: 8470101
    Abstract: Disclosed is a lead-free copper alloy for casting which contains 0.1-0.7% of S, 8% or less (excluding 0%) of Sn, and 6% or less (excluding 0%) of Zn, and in which a sulfide is dispersed and the average spheroidization ratio of the sulfide is 0.7 or greater. Due to this constitution, said lead-free copper alloy for casting has excellent mechanical properties such as strength, high pressure resistance and good machinability and, therefore, is useful as a starting material for faucet metal fittings, water faucet and so on, even though the alloy contains no lead which causes deterioration of water.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: June 25, 2013
    Assignees: Shiga Valve Cooperative, Biwalite Co., Ltd.
    Inventors: Takeshi Kobayashi, Toru Maruyama, Ryozo Matsubayashi, Hiroyuki Abe, Masakazu Teramura
  • LEAD-FREE COPPER ALLOY FOR CASTING WITH EXCELLENT MECHANICAL PROPERTIES
    Publication number: 20120082588
    Abstract: Disclosed is a lead-free copper alloy for casting which contains 0.1-0.7% of S, 8% or less (excluding 0%) of Sn, and 6% or less (excluding 0%) of Zn, and in which a sulfide is dispersed and the average spheroidization ratio of the sulfide is 0.7 or greater. Due to this constitution, said lead-free copper alloy for casting has excellent mechanical properties such as strength, high pressure resistance and good machinability and, therefore, is useful as a starting material for faucet metal fittings, water faucet and so on, even though the alloy contains no lead which causes deterioration of water.
    Type: Application
    Filed: May 17, 2010
    Publication date: April 5, 2012
    Applicants: Biwalite Co., Ltd., Shiga Valve Cooperative
    Inventors: Takeski Kobayashi, Toru Maruyama, Ryozo Matsubayashi, Hiroyuki Abe, Masakazu Teramura