Patents Assigned to Keyence Corporation
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Patent number: 11170518Abstract: An imaging processing part 131 executes first imaging processing of causing a first illuminating part to emit structured light from a first direction to a measurement target, causing an imaging part 120 to generate image data, and causing a buffer memory 133 to store therein the generated image data. A computing processing part 132 executes first computing processing of generating, height data corresponding to the first direction. Concurrently with the first computing processing, the imaging processing part 131 executes second imaging processing of causing the second illuminating part to emit structured light from a second direction to the measurement target, causing the imaging part 120 to generate image data, and causing a buffer memory 134 to store therein the generated image data. The computing processing part 132 executes second computing processing of generating height data corresponding to the second direction.Type: GrantFiled: December 27, 2019Date of Patent: November 9, 2021Assignee: KEYENCE CORPORATIONInventors: Xing Li, Toshihiro Konaka, Naoyuki Nakamura
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Publication number: 20210318115Abstract: Provided is an optical displacement sensor that allows a housing serving as a head to be downsized. A relay cable extending from the head is integrated with a body. The head is primarily responsible for projecting and receiving light to and from a to-be-detected object, while the body is made up of a power supply circuit, a display, and an operation part. The head includes a green laser light source and emits the green laser light to form a spot on a surface of the to-be-detected object.Type: ApplicationFiled: March 9, 2021Publication date: October 14, 2021Applicant: Keyence CorporationInventors: Daiki MATSUMOTO, Choryon OH
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Publication number: 20210318437Abstract: Provided is a displacement sensor having a modular structure that allows further downsizing. A housing of a head is made up of a main housing and a lid member, both of which are precision molded products made of a metal material. A first holder to which a light projector is bonded and a second holder to which a light receiver is bonded are individually positioned on and bonded to the lid member. This work is performed by a mounting device. Optical components such as a light projecting lens are also bonded to the lid member, and the lid member modularized by incorporating such optical components is assembled and welded to the main housing.Type: ApplicationFiled: March 9, 2021Publication date: October 14, 2021Applicant: Keyence CorporationInventors: Sohei KANODA, Shinichiro OTSU, Choryon OH
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Publication number: 20210295001Abstract: Recommended installation position and posture of a stationary code reader can be proposed to a user to facilitate installation work of the code reader by the user. An installation support device for the stationary code reader acquires camera information including a camera parameter of the code reader, code information to be read, and environment information including a conveying speed of a line, determines required field of view and depth of the code reader required to read a code under an environment specified by the environment information, and determines an installation pattern which is recommended installation position and posture of the code reader that can satisfy the required field of view and depth based on the camera information and the code information.Type: ApplicationFiled: February 22, 2021Publication date: September 23, 2021Applicant: Keyence CorporationInventors: Hidezumi NAGATA, Taichi TAJIKA, Takashi HIRANO
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Publication number: 20210294994Abstract: A sufficient decoding processing time for each image acquired by performing high-speed imaging is secured to obtain a stable reading result, thereby enabling immediate output of the obtained reading result. A processing unit has a first core and a plurality of second cores. The first core instructs the second cores, presumed to be capable of immediately executing the decoding process or executing the decoding process next to a decoding process being currently executed, to execute the decoding process. The second cores are configured to be capable of simultaneously executing the decoding process on read images instructed by the first core at different timings.Type: ApplicationFiled: February 22, 2021Publication date: September 23, 2021Applicant: Keyence CorporationInventors: Hidezumi NAGATA, Kazuteru YAMAMURA
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Publication number: 20210295002Abstract: The optical information reader includes an imaging part configured to capture a plurality of images at predetermined timing until code reading results in success or a reading process times out, and an output part configured to output information on timing at which the optical information reader receives the trigger signal, success or failure information on code reading, and the plurality of images captured by the imaging part, and success or failure information representing whether the reading process performed by a decoder results in success or failure and the plurality of images captured in response to the trigger signal are associated with the trigger signal, and, with a list of reading results corresponding to a plurality of the trigger signals displayed on a display part.Type: ApplicationFiled: February 22, 2021Publication date: September 23, 2021Applicant: Keyence CorporationInventors: Hidezumi NAGATA, Takashi HIRANO, Kazuteru YAMAMURA
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Publication number: 20210295000Abstract: Even if a size of a read image is large, a code search process can be speeded up to enable immediate output of a decoding result. Each time a predetermined number of lines of image data is taken, a pre-processing circuit executes pre-processing on the image data and calculates a characteristic amount indicating the likelihood of the code for each area in the image data. A processor determines a code candidate area based on the acquired characteristic amount and executes a decoding process of the determined area to generate a decoding result.Type: ApplicationFiled: February 22, 2021Publication date: September 23, 2021Applicant: Keyence CorporationInventor: Ikuo YAMADA
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Publication number: 20210287355Abstract: A marking system includes: a whole camera that generates a captured image; a pass/fail determination section that determines pass/fail of printing using the captured image; a history storage section that stores a plurality of determination results including an NG determination result, the captured image, and state information of a laser marker in association with each other; a display section that displays at least one of a first display area for displaying the plurality of determination results and a second display area for displaying the captured image; a receiving section that selects either the NG determination result or the captured image; and a control section that displays state information, associated with the NG determination result or the captured image selected via the receiving section, among a plurality of types of the state information on the display section.Type: ApplicationFiled: February 16, 2021Publication date: September 16, 2021Applicant: Keyence CorporationInventor: Osamu IWABUCHI
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Patent number: 11112236Abstract: The optical displacement meter generates, from each position of a plurality of pixel rows in a U direction and a peak position in a V direction, a plurality of profiles of the X-Z cross section, and measures a three-dimensional shape of the measuring object based on the plurality of profiles acquired at different positions in the Y direction. The optical displacement meter determines, based on whether a profile exists in a blind spot region in which it is impossible to measure a height which occurs in a Y-Z cross section corresponding to an angle formed between a light projecting axis of a light projecting section and a light receiving axis of an image sensor based on a principle of triangulation, a part of the three-dimensional shape generated by a measuring unit as an erroneous detection value.Type: GrantFiled: March 19, 2020Date of Patent: September 7, 2021Assignee: KEYENCE CORPORATIONInventor: Tatsuro Homma
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Patent number: 11099046Abstract: To provide an apparatus for monitoring a fluid flow rate, which is capable of performing monitoring without a data deficit, and displays information on a trend of a past history. A monitoring apparatus accepts, from the flow meter, integrated flow amount data for every day-and-time section, and a current flow rate, and graphically displays, on the basis of the integrated flow amount data for every day-and-time section, an integrated flow amount corresponding to each day-and-time section, on the basis of the integrated flow amount data for every day-and-time section including the current day-and-time and for every another plurality of continuous day-and-time sections.Type: GrantFiled: September 18, 2019Date of Patent: August 24, 2021Assignee: KEYENCE CORPORATIONInventor: Kentaro Yamazaki
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Patent number: 11099042Abstract: A clamp-on type ultrasonic flowmeter which is detachably attached to an outer wall of cylindrical piping is provided. An ultrasonic signal is transmitted to the piping from one of the first and the second ultrasonic devices, a plate wave corresponding to the ultrasonic signal is generated, and an ultrasonic signal corresponding to the plate wave is received by the other ultrasonic device. A pipe wall thickness of the piping and a frequency of the ultrasonic signal are in a state in which a plate wave of a low order asymmetric mode is significantly excited in the piping. A flow rate is calculated corresponding to phase velocity characteristics of the low order asymmetric mode.Type: GrantFiled: September 18, 2019Date of Patent: August 24, 2021Assignee: Keyence CorporationInventors: Hiroki Matsui, Masaki Wada
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Patent number: 11099045Abstract: In a temporally continued plurality of day-and-time sections, history data included in the past day-and-time section is graphically displayed on the basis of the integrated flow amount data stored in the storage unit, as an integrated flow amount in each day-and-time section. In the day-and-time section including the current day-and-time, the integrated flow amount in the day-and-time section based on the current integrated flow amount data is successively updated and graphically displayed.Type: GrantFiled: September 18, 2019Date of Patent: August 24, 2021Assignee: KEYENCE CORPORATIONInventors: Yohei Hashimoto, Kentaro Yamazaki
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Patent number: 11087456Abstract: To enable a non-defective product image or a defective product image to be easily additionally learned in both a setting mode and a run mode. Designation as to whether an inspection target image displayed on a run mode screen is additionally learned as a non-defective product image or a defective product image is received. A distinguishing device generating unit additionally learns, as a non-defective product image or a defective product image, the inspection target image designated as the additional learning target and updates a distinguishing device.Type: GrantFiled: December 30, 2019Date of Patent: August 10, 2021Assignee: KEYENCE CORPORATIONInventors: Shunichi Hino, Daisuke Kida
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Publication number: 20210239833Abstract: An optical waveguide of a light detection unit is allowed to pass through a thin space or to be installed in the thin space. A light detection unit includes: optical waveguides that are formed in a sheet shape, which is wide in the horizontal direction, and have cores and claddings, respectively, the cores and the claddings being provided in layers in the vertical direction; and sheet-shaped cover members that cover the claddings of the optical waveguides and are integrally formed with the optical waveguides.Type: ApplicationFiled: December 21, 2020Publication date: August 5, 2021Applicant: Keyence CorporationInventor: Akinori NAGATA
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Publication number: 20210240154Abstract: An object of the present invention is to efficiently identify an abnormal device by analyzing and classifying characteristics such as periodicity and continuity of data related to each device. A programmable logic controller collects data held by a device as a collection target out of the plurality of devices in accordance with a predetermined collection setting for each scan cycle of the user program, classifies each of the devices into one of a plurality of types on the basis of a characteristic of the collected time-series data of each of the devices, and determines a detection algorithm used in identification of the device as an abnormal device in accordance with the time-series data of the device collected by the collection section and the type of the device classified by the classification section for each of the devices.Type: ApplicationFiled: December 18, 2020Publication date: August 5, 2021Applicant: Keyence CorporationInventor: Tetsuya MIYASAKA
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Publication number: 20210233498Abstract: An object is to enhance usability when browsing through a measurement result from a sensor on an external computer. A data relay device includes a first connection part to which one or more sensors are connected, a second connection part to which an industrial network for communication with a control device is connected, a relay memory that temporarily stores first data received from the one or more sensors connected to the first connection part to relay the first data to the control device via the second connection part, a third connection part to which a computer network for communication with an external computer is connected, a creation unit that creates display screen information for use in displaying the first data stored in the relay memory in a predetermined display form, and a provision unit that provides the display screen information to the external computer via the third connection part.Type: ApplicationFiled: December 4, 2020Publication date: July 29, 2021Applicant: Keyence CorporationInventors: Takamasa KOYAMA, Yohei HASHIMOTO
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Patent number: 11073376Abstract: An imaging head 100 includes a laser projector 110, an LED projector 120, a light receiving lens 132, a light receiver 131, and a processor 200. The laser projector 110 emits measurement light to a workpiece W. The LED projector 120 emits uniform observation light to the workpiece W. The light receiving lens 132 converges reflected light of the measurement light and reflected light of the observation light that are reflected back from the workpiece W. The light receiver 131 has a light receiving surface composed of multiple light receiving elements that are two-dimensionally arranged. The laser projector 110, the light receiver 131, and the light receiving lens 132 are arranged so that a plane containing the light receiving surface and a plane containing the principal plane of the light receiving lens 132 will satisfy the Scheimpflug condition relative to a light projection axis of the laser projector 110.Type: GrantFiled: March 19, 2020Date of Patent: July 27, 2021Assignee: Keyence CorporationInventor: Akira Fuyuno
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Publication number: 20210222478Abstract: To improve toughness of a non-contact type safety door switch. A safety switch includes a metallic casing integrated as a first part of an enclosure, having an opening in a front side, a cover integrated as a front part of the enclosure, covering the opening, the cover having a surface as a front surface of the enclosure, a wireless means, a determination means, an output means, circuit substrates provided inside the metallic casing and the cover, on which the wireless means, the determination means and the output means are mounted, and attachment holes on a side surface of the metallic casing, the side surface being adjacent to the front surface of the enclosure for attaching the casing.Type: ApplicationFiled: April 6, 2021Publication date: July 22, 2021Applicant: Keyence CorporationInventors: Hiroshi Kashima, Lye Tatt Cheah
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Patent number: 11060917Abstract: Provided are a multi-wavelength photoelectric measurement device, a confocal measurement device, an interference measurement device, and a color measurement device capable of measuring the characteristic amount of a measurement object such as the thickness, distance, displacement, or color with high accuracy using multi-wavelength light such as white light. The multi-wavelength photoelectric measurement device includes a laser light source, a light source optical member for concentrating light from the laser light source, a phosphor excited by light concentrated by the light source optical member, an optical fiber unit that includes one or a plurality of optical fibers and the phosphor disposed on a first end, receives light emitted by the phosphor from the first end, and transmits the received light toward a second end, and a head optical member that concentrates light emitted from the second end of the optical fiber unit toward a measurement object.Type: GrantFiled: November 29, 2018Date of Patent: July 13, 2021Assignee: KEYENCE CORPORATIONInventor: Shoma Kuga
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Patent number: 11054249Abstract: A displacement measuring apparatus acquires, based on a principle of triangulation and corresponding to an incident position of the reflected light in the light receiving section, a profile that is an aggregate of heights of reflection positions of the planar measurement light in the measurement object. The displacement measuring apparatus drives the light guiding optical system such that a plurality of reflection positions arranged in a line along a first direction on a surface of the measurement object are minutely displaced in a second direction different from the first direction by reflecting the planar measurement light on the surface of the measurement object. The displacement measuring apparatus acquires one profile by statistically processing a plurality of sub-profiles acquired by minutely displacing the light guiding optical system.Type: GrantFiled: October 15, 2019Date of Patent: July 6, 2021Assignee: KEYENCE CORPORATIONInventor: Masakazu Nishiki