Patents by Inventor Moriyasu Kanenari

Moriyasu Kanenari 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).

  • Dresser for polishing cloth and manufacturing method therefor
    Patent number: 6293854
    Abstract: The present invention provides a dresser for a chemical and mechanical polishing cloth wherein a bonding material for retaining diamond grit is not dissolved and contamination of chemical slurry caused by dissolving of metal or peeling-off of diamond grit is prevented from occurring. A sintered product constituting the dressing face 2a is obtained by mixing a bonding material 4 consisting of silicon and/or silicon alloy with diamond grit 3, and forming and sintering the mixture. A carbide film 5 generated by sintering silicon in the bonding material into diamond is formed on the surface of the diamond grit 3. Thereby, the diamond grit is firmly bonded with the bonding material, and the bonding material is not dissolved. As a result, the contamination of the chemical slurry or the peeling-off of the diamond grit is prevented.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: September 25, 2001
    Assignee: Read Co., Ltd.
    Inventors: Kenichi Kimura, Moriyasu Kanenari