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公开(公告)号：US10024774B2
公开(公告)日：2018-07-17
申请号：US15255782
申请日：2016-09-02
Applicant: MITUTOYO CORPORATION
Inventor： Fumihiko Koshimizu , Makoto Kaieda , Akira Takada
IPC: G01N3/42
Abstract: A hardness tester includes a memory storing, as a parts program, definitions of measurement conditions including a coordinate system and test position defined with respect to an image of a standard reference sample; a pattern searcher performing a pattern searching process, with reference to a plurality of samples to be measured, using a pattern image based on the image of the standard reference sample, and detecting a number of samples having a shape identical to that of the standard reference sample, as well as a position and angle of the samples having the identical shape; a pattern definer defining a coordinate system and test position for each of the samples having the identical shape based on the position and angle of each of the samples having the identical shape; and a measurer measuring the hardness of the samples for which the coordinate system and test position have been defined.
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公开(公告)号：US10001432B2
公开(公告)日：2018-06-19
申请号：US15255753
申请日：2016-09-02
Applicant: MITUTOYO CORPORATION
Inventor： Eiji Furuta , Makoto Kaieda , Akira Takada
CPC classification number: G01N3/42 , G01N2203/0098 , G01N2203/0647 , G01N2203/0682 , G06T2207/10004 , G06T2207/30108
Abstract: The present invention includes: an image capturer capturing an image of the sample to be measured; an image acquirer acquiring image data of the sample captured by the image capturer; a pattern searcher performing, on the image data of the sample acquired by the image acquirer, pattern searching process using a pattern image selected based on the sample and identifying a position in the image matching the pattern image; a profile extractor extracting a profile of the sample based on the position in the image identified by the pattern searcher; a calculator calculating a hardness measurement position of the sample based on the profile extracted by the profile extractor; and a measurer executing hardness testing on the sample based on the hardness measurement position calculated by the calculator and measuring the hardness of the sample.
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Patent Agency Ranking
公开(公告)号：US10416863B2
公开(公告)日：2019-09-17
申请号：US14795092
申请日：2015-07-09
Applicant: MITUTOYO CORPORATION
Inventor： Makoto Kaieda
IPC: G06F3/048 , G06F3/0484 , G02B7/14 , G06F3/0482 , G06F3/0486 , G06F3/0481
Abstract: An image measuring apparatus including an image measurer capable of switching between one of a type of lens and a magnification power, the image measurer obtaining an image of a measured object; a display displaying the image obtained by the image measurer and providing an operation screen to a user; and a controller controlling operations of the image measurer and the display. A calibration value and an expiration date for the calibration value are recorded by the controller for one of each type of lens and each magnification power. The controller communicates to the user, using the display, that one of the lens and the magnification power has an expired calibration value.
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公开(公告)号：US10102631B2
公开(公告)日：2018-10-16
申请号：US15085027
申请日：2016-03-30
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida , Akira Takada , Makoto Kaieda , Gyokubu Cho , Koichi Komatsu , Hidemitsu Asano , Takashi Hanamura , Takuho Maeda , Isao Tokuhara
Abstract: A distance in a scanning direction between a first set of edges which face each other and exhibit an opposite change between light and dark is measured by an image measuring machine, and a bias correction value is calculated based on a difference between a measured value and a true value. Using the bias correction value, detection point correction values, which are correction values in various directions of edge detection points detected by a scan of a measured object using the image measuring machine, are calculated; a correction amount used in correction of the edge detection points is specified based on the detection point correction value in each direction; and the edge detection points are corrected using the correction amount.
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公开(公告)号：US20250116504A1
公开(公告)日：2025-04-10
申请号：US18907959
申请日：2024-10-07
Applicant: MITUTOYO CORPORATION
Inventor： Hiroyuki Yoshida , Yuki Yamasaki , Yuji Sadahira , Makoto Kaieda
Abstract: An image measuring apparatus includes: a mounting table on which a measurement object is placed; an image capturing unit disposed opposite the mounting table and captures an image of the measurement object; a control unit that controls the image measuring apparatus; and a memory unit that stores at least the shape of the measurement object and the measurement method corresponding to the measurement object, associated to each other. The control unit includes: a placement judging unit that judges whether or not the measurement object is placed on the mounting table in a state ready for measurement based on the image captured by the image capturing unit; and a measurement performing unit that selects a measurement method based on the shape of the measurement object appearing in the image and performs the measurement, when the placement judging unit determines that the measurement object is ready for measurement.
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公开(公告)号：US20250110762A1
公开(公告)日：2025-04-03
申请号：US18899786
申请日：2024-09-27
Applicant: MITUTOYO CORPORATION
Inventor： Ryoichi Imaizumi , Makoto Kaieda
IPC: G06F9/451 , G06F3/04817
Abstract: A measurement control device includes a screen interface and controls a measurement operation of a measurement machine through the screen interface, the measurement control device including: a normal display screen that forms a part of the screen interface; one or more functional components provided on the normal display screen; a help mode button provided on a part of the normal display screen to switch a normal display mode from/to a help display mode; one or more help icons displayed on the normal display screen in the help display mode in a manner each associated with corresponding one of the functional components; a summary description field displayed on a part of the normal display screen when one of the help icons is selected; a detail display button displayed on a part of the summary description field; and a detailed description field displayed when the detail display button is selected.
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公开(公告)号：US11257205B2
公开(公告)日：2022-02-22
申请号：US15384713
申请日：2016-12-20
Applicant: MITUTOYO CORPORATION
Inventor： Gyokubu Cho , Koichi Komatsu , Akira Takada , Hiroyuki Yoshida , Takashi Hanamura , Takuho Maeda , Makoto Kaieda , Isao Tokuhara
Abstract: An image measuring method performed with an image measuring device measuring a dimension of a measured object from an image of the measured object captured by an image capturer. The method executes a standard reference object measurement measuring a dimension of the standard reference object with the image measuring device; a standard reference dimension input inputting a dimension of the standard reference object specified by a device other than the image measuring device; a preset value calculation calculating a preset value from the dimension of the measured standard reference object and from a dimension of the standard reference object measured by a predetermined measurement tool; a measurement measuring a dimension of a measured object other than the standard reference object using the image measuring device; and a correction correcting the dimension of the measured object other than the standard reference object measured by the image measuring device.
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