Patents by Inventor Ai Muto

Ai Muto 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).

  • Machine tool with a feature for preventing a thermal deformation
    Patent number: 6923603
    Abstract: A machine tool 1 comprises a spindle head 11 for supporting a spindle 9 to which a tool 7 is fitted, a column 5 for supporting the spindle head 11 and a table 13 for mounting a workpiece 15, and machines the workpiece 15 by relatively moving the tool and the workpiece. A cavity 5a is defined in the column so that a liquid can be circulated. A liquid pump 19 is provided for circulating the liquid into the cavity 5a. A circulating pump controller 27 is provided for controlling the circulation of the liquid by activating and deactivating the liquid pump 19. By circulating the liquid into the cavity 5a of the column 5, the temperature of each part of the column 5 is evenly maintained to prevent the thermal deformation of the column 5.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: August 2, 2005
    Assignee: Makino Milling Machine Co., LTD
    Inventor: Ai Muto
  • Machine tool with thermal deformation suppressing function
    Publication number: 20030103825
    Abstract: A machine tool 1 comprises a spindle head 11 for supporting a spindle 9 to which a tool 7 is fitted, a column 5 for supporting the spindle head 11 and a table 13 for mounting a workpiece 15, and machines the workpiece 15 by relatively moving the tool and the workpiece. A cavity 5a is defined in the column so that a liquid can be circulated. A liquid pump 19 is provided for circulating the liquid into the cavity 5a. A circulating pump controller 27 is provided for controlling the circulation of the liquid by activating and deactivating the liquid pump 19. By circulating the liquid into the cavity 5a of the column 5, the temperature of each part of the column 5 is evenly maintained to prevent the thermal deformation of the column 5.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 5, 2003
    Inventor: Ai Muto