Patents Assigned to DESIGNMECHA CO., LTD.
  • Method of making bearing using ultrasonic nano crystal surface modification technology
    Patent number: 8782902
    Abstract: A method of making a bearing includes providing a bearing intermediate, which is unfinished while having an overall shape of a finished bearing product; and repeatedly impacting a surface of the bearing intermediate at one or more ultrasonic frequencies to modify characteristics of the bearing intermediate. The resulting bearing intermediate or finished bearing product includes nano-size grains at or underneath the surface.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: July 22, 2014
    Assignee: Designmecha Co., Ltd.
    Inventors: Young Sik Pyun, Jeong Hyeon Park, Chang Sik Kim, In Ho Cho
  • METHOD OF MAKING BEARING USING ULTRASONIC NANO CRYSTAL SURFACE MODIFICATION TECHNOLOGY
    Publication number: 20100024218
    Abstract: A method of making a bearing includes providing a bearing intermediate, which is unfinished while having an overall shape of a finished bearing product; and repeatedly impacting a surface of the bearing intermediate at one or more ultrasonic frequencies to modify characteristics of the bearing intermediate. The resulting bearing intermediate or finished bearing product includes nano-size grains at or underneath the surface.
    Type: Application
    Filed: October 13, 2009
    Publication date: February 4, 2010
    Applicant: DESIGNMECHA CO., LTD.
    Inventors: YOUNG SIK PYUN, JEONG HYEON PARK, CHANG SIK KIM, IN HO CHO