Patents by Inventor Hideki Kumagai

Hideki Kumagai 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).

  • Patent number: 8578618
    Abstract: According to the present invention, a three-dimensional measuring instrument includes a spindle that moves an object to be controlled in a predetermined axis direction; and a controlling device that controls a position of the object to be controlled by controlling a position of the spindle. The three-dimensional measuring instrument further includes an absolute-type linear encoder that outputs an absolute position of the spindle. With this, it is possible to start measurement by the three-dimensional measuring instrument in a short period of time.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: November 12, 2013
    Assignee: Mitutoyo Corporation
    Inventors: Takashi Majima, Hideki Kumagai, Kazumi Mizukami, Tomohiro Usui
  • Patent number: 8516712
    Abstract: A three-dimensional measuring machine (measurement device) which supplies a probe having a measurement head able to make contact with a measured object and a contact detection sensor which detects the contact of a measurement head with a measured object and outputs a touch signal; a displacement structure which displaces a probe along three axial directions orthogonal to one another; scale sensors which detect the position coordinates of a probe and output a coordinate detection signal; a control circuit board having an integrated circuit on which are installed a touch counter which counts touch signals and a scale counter which counts coordinate detection signals; and a latch controller which latches a touch counter value and a scale counter value at the same time.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: August 27, 2013
    Assignee: Mitutoyo Corporation
    Inventors: Hideki Kumagai, Kazumi Mizukami
  • Patent number: 8249516
    Abstract: An output signal SHS is secondarily amplified by a high-frequency amplifier AMP3 and an output signal SHR is secondarily amplified by an AMP4 for which high-frequency side amplitude reducing means is taken. In this case, the AMP4 has small gain of a high-frequency region and its output SHR-2 is reduced in amplitude. However, a high-frequency noise has a frequency higher than that of a carrier wave SH and the amplitude of a noise NzB becomes smaller. The other output signal SHS is directly amplified by the wideband amplifier AMP3. The width of an SHS-2 and the width of the SHR-2 are adjusted by amplitude adjusting means throughout the whole region and then mutually added by both signals addition amplifying means again so that the amplitude of the output signal SHS is adjusted to the SHR-2, and a predetermined threshold value is set to extract the noises.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: August 21, 2012
    Inventors: Hideki Kumagai, Takashi Kumagai
  • Publication number: 20120055037
    Abstract: A three-dimensional measuring machine (measurement device) which supplies a probe having a measurement head able to make contact with a measured object and a contact detection sensor which detects the contact of a measurement head with a measured object and outputs a touch signal; a displacement structure which displaces a probe along three axial directions orthogonal to one another; scale sensors which detect the position coordinates of a probe and output a coordinate detection signal; a control circuit board having an integrated circuit on which are installed a touch counter which counts touch signals and a scale counter which counts coordinate detection signals; and a latch controller which latches a touch counter value and a scale counter value at the same time.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 8, 2012
    Applicant: MITUTOYO CORPORATION
    Inventors: Hideki KUMAGAI, Kazumi MIZUKAMI
  • Publication number: 20120023765
    Abstract: According to the present invention, a three-dimensional measuring instrument includes a spindle that moves an object to be controlled in a predetermined axis direction; and a controlling device that controls a position of the object to be controlled by controlling a position of the spindle. The three-dimensional measuring instrument further includes an absolute-type linear encoder that outputs an absolute position of the spindle. With this, it is possible to start measurement by the three-dimensional measuring instrument in a short period of time.
    Type: Application
    Filed: July 11, 2011
    Publication date: February 2, 2012
    Applicant: MITUTOYO CORPORATION
    Inventors: Takashi MAJIMA, Hideki KUMAGAI, Kazumi MIZUKAMI, Tomohiro USUI
  • Publication number: 20120007671
    Abstract: An output signal SHS is secondarily amplified by a high-frequency amplifier AMP3 and an output signal SHR is secondarily amplified by an AMP4 for which high-frequency side amplitude reducing means is taken. In this case, the AMP4 has small gain of a high-frequency region and its output SHR-2 is reduced in amplitude. However, a high-frequency noise has a frequency higher than that of a carrier wave SH and the amplitude of a noise NzB becomes smaller. The other output signal SHS is directly amplified by the wideband amplifier AMP3. The width of an SHS-2 and the width of the SHR-2 are adjusted by amplitude adjusting means throughout the whole region and then mutually added by both signals addition amplifying means again so that the amplitude of the output signal SHS is adjusted to the SHR-2, and a predetermined threshold value is set to extract the noises.
    Type: Application
    Filed: August 29, 2008
    Publication date: January 12, 2012
    Inventors: Hideki Kumagai, Takashi Kumagai
  • Patent number: 8057237
    Abstract: According to a question displayed on a computer screen, a to-be-examined person selects, out of constituent elements (components) displayed on the screen, constituent elements that he considers optimum for the question and then makes a design by constructing them on the screen, and the content of the design on the screen is evaluated by using predetermined evaluation data. Further, there is provided a system which enables assembling an actual apparatus (an apparatus to be evaluated) according to the content of design, measures the performance of the assembled actual apparatus and evaluates the ability of the to-be-examined person to assemble the actual apparatus from the measured data by using a computer.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: November 15, 2011
    Assignee: Shinko Engineering Research Corp.
    Inventors: Takasi Kumagai, Hideki Kumagai
  • Patent number: 7963771
    Abstract: When a mechanism constituent unit having a base is secured to a magnetic base at a predetermined position, a fixture having a detachable mechanism inside itself is employed, and the fixture is disposed on a notch of the base of the mechanism constituent unit in a non-adsorption state in which magnetic force lines of a permanent magnet of the detachable mechanism permeate the fixture. In this state, a rotation casing is rotated 90 degrees to be in a lock state, and a fixing casing is firmly adsorbed to the magnetic base such that magnetic force of the permanent magnet inside it permeate to the magnetic base side. Thus, the mechanism constituent unit base is firmly sandwiched by a pressing portion of the fixing casing and the magnetic base, and the base of the mechanism constituent unit is firmly secured to the magnetic base at a predetermined position.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: June 21, 2011
    Assignee: Shinko Engineering Reseach Corp.
    Inventors: Takasi Kumagai, Hideki Kumagai
  • Publication number: 20090092956
    Abstract: When a mechanism constituent unit having a base is secured to a magnetic base at a predetermined position, a fixture having a detachable mechanism inside itself is employed, and the fixture is disposed on a notch of the base of the mechanism constituent unit in a non-adsorption state in which magnetic force lines of a permanent magnet of the detachable mechanism permeate the fixture. In this state, a rotation casing is rotated 90 degrees to be in a lock state, and a fixing casing is firmly adsorbed to the magnetic base such that magnetic force of the permanent magnet inside it permeate to the magnetic base side. Thus, the mechanism constituent unit base is firmly sandwiched by a pressing portion of the fixing casing and the magnetic base, and the base of the mechanism constituent unit is firmly secured to the magnetic base at a predetermined position.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Inventors: Takasi Kumagai, Hideki Kumagai
  • Publication number: 20060085224
    Abstract: According to a question displayed on a computer screen, a to-be-examined person selects, out of constituent elements (components) displayed on the screen, constituent elements that he considers optimum for the question and then makes a design by constructing them on the screen, and the content of the design on the screen is evaluated by using predetermined evaluation data. Further, there is provided a system which enables assembling an actual apparatus (an apparatus to be evaluated) according to the content of design, measures the performance of the assembled actual apparatus and evaluates the ability of the to-be-examined person to assemble the actual apparatus from the measured data by using a computer.
    Type: Application
    Filed: September 14, 2005
    Publication date: April 20, 2006
    Inventors: Takasi Kumagai, Hideki Kumagai