Patents by Inventor Kazuaki KAWARAI
Kazuaki KAWARAI 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).
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Patent number: 10753438Abstract: A lifting drive device for a Z-axis spindle inserted into a guide tube and guided via an air layer including: a wire extending upward from the inside of the Z-axis spindle and having its upper end supported by the guide tube, a piston connected to an lower end of the wire, a cylinder that moves up-and-down relative to the piston by an air supplied to a cylinder chamber provided to the Z-axis spindle and partitioned by the piston, a driving roller provided to the guide tube and in contact with the surface of the Z-axis spindle, and a motor for driving the driving roller, so as to achieve highly precise linear movement and swift lifting of the Z-axis spindle guided by an air bearing and to be suitable for structural simplification, weight reduction and vibration countermeasures.Type: GrantFiled: February 27, 2018Date of Patent: August 25, 2020Assignee: MITUTOYO CORPORATIONInventors: Yoshiharu Kimura, Yoshikazu Ooyama, Kazuaki Kawarai
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Publication number: 20180266817Abstract: A profile measuring machine includes: a first column and a second column forming a portal structure of a movement mechanism supporting a probe; a first guide made of a first material and configured to guide the first column; a second guide provided in parallel to the first guide, made of a second material different from the first material, and configured to guide the second column; a first support supporting the first guide on a foundation; a second support supporting the second guide on the foundation; and a thermal expansion compensator configured to compensate a difference in thermal expansion between the first guide and the second guide.Type: ApplicationFiled: March 9, 2018Publication date: September 20, 2018Applicant: MITUTOYO CORPORATIONInventors: Shoji KASHIWABUCHI, Kazuaki KAWARAI
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Publication number: 20180252302Abstract: A lifting drive device for a Z-axis spindle inserted into a guide tube and guided via an air layer including: a wire extending upward from the inside of the Z-axis spindle and having its upper end supported by the guide tube, a piston connected to an lower end of the wire, a cylinder that moves up-and-down relative to the piston by an air supplied to a cylinder chamber provided to the Z-axis spindle and partitioned by the piston, a driving roller provided to the guide tube and in contact with the surface of the Z-axis spindle, and a motor for driving the driving roller, so as to achieve highly precise linear movement and swift lifting of the Z-axis spindle guided by an air bearing and to be suitable for structural simplification, weight reduction and vibration countermeasures.Type: ApplicationFiled: February 27, 2018Publication date: September 6, 2018Applicant: MITUTOYO CORPORATIONInventors: Yoshiharu KIMURA, Yoshikazu OOYAMA, Kazuaki KAWARAI
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Patent number: 10001357Abstract: A coordinate measuring apparatus includes a base on which an object to be measured is mounted, a movable X-axis beam, a Y-axis column with a hollow part that is provided on the base and supports the X-axis beam, a control unit that is provided under the base and controls the movement of the X-axis beam, and a cable that is wired from the X-axis beam to the control unit through the hollow part of the Y-axis column.Type: GrantFiled: September 29, 2016Date of Patent: June 19, 2018Assignee: MITUTOYO CORPORATIONInventors: Takao Oneta, Koji Takesako, Tomomitsu Sugawara, Mitsuru Fukuda, Kazuaki Kawarai
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Publication number: 20170097220Abstract: A coordinate measuring apparatus includes a base on which an object to be measured is mounted, a movable X-axis beam, a Y-axis column with a hollow part that is provided on the base and supports the X-axis beam, a control unit that is provided under the base and controls the movement of the X-axis beam, and a cable that is wired from the X-axis beam to the control unit through the hollow part of the Y-axis column.Type: ApplicationFiled: September 29, 2016Publication date: April 6, 2017Inventors: Takao Oneta, Koji Takesako, Tomomitsu Sugawara, Mitsuru Fukuda, Kazuaki Kawarai
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Patent number: 8984876Abstract: A three-dimensional measuring machine (industrial machine) includes an air supplier supplying air; a drive mechanism driven by the air supplied from the air supplier; an electromagnetic valve provided inside an air regulator set to open and close an air supply passage inside the air regulator set, the air regulator set introducing the air from the air supplier to the drive mechanism; and a motion controller controlling the electromagnetic valve to block the air supply passage when a time since the drive mechanism stopped operation reaches a preset time.Type: GrantFiled: September 1, 2011Date of Patent: March 24, 2015Assignee: Mitutoyo CorporationInventors: Mitsuru Fukuda, Kazuaki Kawarai, Kazumi Mizukami, Seiichi Otsubo
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Patent number: 8676527Abstract: A coordinate measuring machine (industrial machine) includes: a column and a support that extend along the Z-axis; a beam being provided between the column and the support; a slider being movable on the beam; a ram being held on the slider movably along the Z-axis direction; a temperature detecting sensor and a temperature detector that detect the respective temperatures of the column, the support and the ram; and a shift amount calculator that calculates a Z-axis shift amount based on the respective temperatures of the column, the support and the ram, reference position data indicating a positional relationship between the column, the support and the ram at a reference temperature, and respective thermal expansion coefficients for the column, the support and the ram.Type: GrantFiled: July 26, 2011Date of Patent: March 18, 2014Assignee: Mitutoyo CorporationInventors: Noritsugu Ono, Kazuaki Kawarai, Seiichi Otsubo, Hirotada Anzai, Kazumi Mizukami
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Publication number: 20120067039Abstract: A three-dimensional measuring machine (industrial machine) includes an air supplier supplying air; a drive mechanism driven by the air supplied from the air supplier; an electromagnetic valve provided inside an air regulator set to open and close an air supply passage inside the air regulator set, the air regulator set introducing the air from the air supplier to the drive mechanism; and a motion controller controlling the electromagnetic valve to block the air supply passage when a time since the drive mechanism stopped operation reaches a preset time.Type: ApplicationFiled: September 1, 2011Publication date: March 22, 2012Applicant: MITUTOYO CORPORATIONInventors: Mitsuru FUKUDA, Kazuaki KAWARAI, Kazumi MIZUKAMI, Seiichi OTSUBO
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Publication number: 20120029857Abstract: A coordinate measuring machine (industrial machine) includes: a column and a support that extend along the Z-axis; a beam being provided between the column and the support; a slider being movable on the beam; a ram being held on the slider movably along the Z-axis direction; a temperature detecting sensor and a temperature detector that detect the respective temperatures of the column, the support and the ram; and a shift amount calculator that calculates a Z-axis shift amount based on the respective temperatures of the column, the support and the ram, reference position data indicating a positional relationship between the column, the support and the ram at a reference temperature, and respective thermal expansion coefficients for the column, the support and the ram.Type: ApplicationFiled: July 26, 2011Publication date: February 2, 2012Applicant: MITUTOYO CORPORATIONInventors: Noritsugu ONO, Kazuaki KAWARAI, Seiichi OTSUBO, Hirotada ANZAI, Kazumi MIZUKAMI