Patents by Inventor Kenji MUNEZANE

Kenji MUNEZANE 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).

  • Crucible-supporting pedestal, quartz crucible-supporting device, and method for producing silicon single crystal
    Patent number: 11598019
    Abstract: A crucible-supporting pedestal includes a fitting recess portion into which a divided graphite member is fittable. An opening edge of the fitting recess portion is formed such that a contact area between the opening edge and the divided graphite member is provided at a position higher than a surface of a solidified product of a silicon melt which remains in a quartz crucible after a silicon single crystal is grown, and a force, which is applied to the divided graphite member by an expansion of the silicon melt when the silicon melt is solidified, is applied to a position lower than the contact area.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: March 7, 2023
    Assignee: SUMCO CORPORATION
    Inventor: Kenji Munezane
  • CRUCIBLE-SUPPORTING PEDESTAL, QUARTZ CRUCIBLE-SUPPORTING DEVICE, AND METHOD FOR PRODUCING SILICON SINGLE CRYSTAL
    Publication number: 20200283925
    Abstract: A crucible-supporting pedestal includes a fitting recess portion into which a divided graphite member is fittable. An opening edge of the fitting recess portion is formed such that a contact area between the opening edge and the divided graphite member is provided at a position higher than a surface of a solidified product of a silicon melt which remains in a quartz crucible after a silicon single crystal is grown, and a force, which is applied to the divided graphite member by an expansion of the silicon melt when the silicon melt is solidified, is applied to a position lower than the contact area.
    Type: Application
    Filed: May 31, 2018
    Publication date: September 10, 2020
    Applicant: SUMCO CORPORATION
    Inventor: Kenji MUNEZANE