Patents by Inventor Noboru Ubukata

Noboru Ubukata 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).

  • Method for making dental root canal filling points
    Patent number: 5061411
    Abstract: A method for making a dental root canal filling point wherein provision is made of a rotary member having its outer processing surface in the form of a curved plane in parallel with its axial direction and adapted to be rotated at a predetermined speed, and a moving member in which at least its processing surface is located in parallel with the processing surface of the rotary member and adapted to move at a speed substantially identical with a peripheral speed of the rotary member in an opposite rotational direction as the rotational direction of the rotary member in a gap portion in which a minimum distance is defined between the processing surfaces of the rotary member and the moving member.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: October 29, 1991
    Assignees: G-C Dental Industrial Corp., Nimikagakukogyo Co., Ltd.
    Inventors: Noboru Ubukata, Hisao Iizuka
  • Apparatus for making dental root canal filling points
    Patent number: 5028228
    Abstract: An apparatus for making a dental root canal filling point is provided, wherein provision is made of a rotary member having its outer processing surface in the form of a curved plane in parallel with its axial direction and adapted to be rotated at a predetermined speed and a moving member in which at least its processing surface is located in parallel with the processing surface of the rotary member and adapted to move at a speed substantially identical with a peripheral speed of the rotary member in the same direction as the rotational direction of the rotary member in a gap portion in which a minimum distance is defined between the processing surfaces of the rotary member and moving member.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: July 2, 1991
    Assignees: G-C Dental Industrial Corp., Nimikagakukogyo Co., Ltd.
    Inventors: Noboru Ubukata, Hisao Iizuka