Patents by Inventor Kazuhiro Ishizu

Kazuhiro Ishizu 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: 10197374
    Abstract: A measuring apparatus of the present invention includes a stage on which a measured object is placed, a measurement head having an information obtainer obtaining an image of the object, and a vertical driver supporting the measurement head so as to allow movement in a vertical direction. The vertical driver includes a counterbalance mechanism having a hanger of the measurement head, a pulley winding up and withdrawing the hanger by rotation, a spring increasing elastic force by stretching the spring when the measurement head displaces downward, and a cam rotating in conjunction with the pulley and having a cam shape decreasing rotational torque provided to the pulley by the elastic force as a stretching amount of the spring increases.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 5, 2019
    Assignee: MITUTOYO CORPORATION
    Inventors: Kazuhiro Ishizu, Ryohei Kanno, Takahiro Ito
  • Patent number: 9798445
    Abstract: A measuring instrument includes a main body casing, a detector on the main body casing and detecting an amount of stylus head displacement, a display on an outer surface of the casing; a plurality of key switches on the outer surface, a menu proximate the display on the outer surface, and a display controller controlling the display. The display includes a main display and a cursor display, which is arranged in a location alongside the menu and displays a cursor pointing to the menu, and performs control such that a measured value based on an amount of displacement is displayed, but the cursor is not displayed when in a measurement mode where the detector detects the amount of displacement, and such that a cursor is displayed so as to point to the menu corresponding to a selected menu when in a settings mode where measurement conditions are set.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: October 24, 2017
    Assignee: MITUTOYO CORPORATION
    Inventors: Atsuya Niwano, Kazuhiro Ishizu, Nobuyuki Hayashi, Yasuhiro Tsujimoto, Takashi Kozawa, Takefumi Kiwada, Makoto Furuta, Aki Hiroshima
  • Publication number: 20170059295
    Abstract: A measuring apparatus of the present invention includes a stage on which a measured object is placed, a measurement head having an information obtainer obtaining an image of the object, and a vertical driver supporting the measurement head so as to allow movement in a vertical direction. The vertical driver includes a counterbalance mechanism having a hanger of the measurement head, a pulley winding up and withdrawing the hanger by rotation, a spring increasing elastic force by stretching the spring when the measurement head displaces downward, and a cam rotating in conjunction with the pulley and having a cam shape decreasing rotational torque provided to the pulley by the elastic force as a stretching amount of the spring increases.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 2, 2017
    Applicant: MITUTOYO CORPORATION
    Inventors: Kazuhiro ISHIZU, Ryohei KANNO, Takahiro ITO
  • Publication number: 20150286354
    Abstract: A measuring instrument includes a main body casing, a detector on the main body casing and detecting an amount of stylus head displacement, a display on an outer surface of the casing; a plurality of key switches on the outer surface, a menu proximate the display on the outer surface, and a display controller controlling the display. The display includes a main display and a cursor display, which is arranged in a location alongside the menu and displays a cursor pointing to the menu, and performs control such that a measured value based on an amount of displacement is displayed, but the cursor is not displayed when in a measurement mode where the detector detects the amount of displacement, and such that a cursor is displayed so as to point to the menu corresponding to a selected menu when in a settings mode where measurement conditions are set.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 8, 2015
    Applicant: MITUTOYO CORPORATION
    Inventors: Atsuya NIWANO, Kazuhiro ISHIZU, Nobuyuki HAYASHI, Yasuhiro TSUJIMOTO, Takashi KOZAWA, Takefumi KIWADA, Makoto FURUTA, Aki HIROSHIMA
  • Patent number: 7895764
    Abstract: A measuring instrument includes: an XY stage on which an object to be measured is placed; a probe holder having a plurality of probes; and a relative moving mechanism that relatively moves the XY stage and the probe holder. The probe holder is provided with a probe selection mechanism that has two guide rails obliquely arranged and advances and retracts at least two of the probes to be selectively positioned at and away from a probe selection position.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: March 1, 2011
    Assignee: Mitutoyo Corporation
    Inventors: Kazuhiro Ishizu, Takeshi Yamamoto
  • Publication number: 20090229138
    Abstract: A measuring instrument includes: an XY stage on which an object to be measured is placed; a probe holder having a plurality of probes; and a relative moving mechanism that relatively moves the XY stage and the probe holder. The probe holder is provided with a probe selection mechanism that has two guide rails obliquely arranged and advances and retracts at least two of the probes to be selectively positioned at and away from a probe selection position.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 17, 2009
    Applicant: MITUTOYO CORPORATION
    Inventors: Kazuhiro Ishizu, Takeshi Yamamoto