Patents by Inventor Seigo Minagawa

Seigo Minagawa 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).

  • Carriage structure of NC lathe
    Patent number: 5289622
    Abstract: An NC lathe includes a bed, a headstock mounted on the bed for rotating a work around C-axis, a tailstock slidably mounted on a first guide surface formed on the bed, and a carriage slidably mounted on a second guide surface formed on the bed in a direction of Z-axis parallel to the C-axis and juxtaposed with the first guide surface. The carriage has a saddle having a first slide surface for contacting the second guide surface of the bed and a second slide surface inclined at a predetermined angle with respect to the first slide surface. A slide base is slidably mounted on the second slide surface of the saddle for movement in a direction of Y-axis perpendicular to the Z-axis. A column extends from the slide base substantially perpendicular thereto and includes a column body which has a guide surface in a direction of X-axis perpendicular to the Z-axis and to the Y-axis. A cross slide is slidably mounted on the guide surface of the column body in the direction of the X-axis and includes a driving device.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: March 1, 1994
    Assignee: Dainichi Kinzoku Kogyo Kabushiki Kaisha
    Inventor: Seigo Minagawa
  • Carriage structure of NC lathe
    Patent number: 5214829
    Abstract: An NC lathe includes a bed, a headstock mounted on the bed for rotating a work around C-axis, a tailstock slidably mounted on a first guide surface formed on the bed, and a carriage slidably mounted on a second guide surface formed on the bed in a direction of Z-axis parallel to the C-axis and juxtaposed with the first guide surface. The carriage has a saddle having a first slide surface for contacting the second guide surface of the bed and a second slide surface inclined at a predetermined angle with respect to the first slide surface. A slide base is slidably mounted on the second slide surface of the saddle for movement in a direction of Y-axis perpendicular to the Z-axis. A column extends from the slide base substantially perpendicular thereto and includes a column body which has a guide surface in a direction of X-axis perpendicular to the Z-axis and to the Y-axis. A cross slide is slidably mounted on the guide surface of the column body in the direction of the X-axis and includes a driving device.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: June 1, 1993
    Assignee: Dainichi Kinzoku Kogyo Kabushiki Kaisha
    Inventor: Seigo Minagawa