Patents Assigned to Keyence Corporation
  • Publication number: 20190285454
    Abstract: To provide a flow meter capable of easily acquiring, with a simple configuration, an integrated value of a flow rate in every flow of fluid intermittently flowing in a pipe. A flow-rate measuring section 302 measures a flow rate of fluid flowing in a pipe. A value of the flow rate integrated from a point in time when the integration of the flow rate is started to a point in time when the integration of the flow rate is stopped is acquired as an integrated value. A reset section 306 resets the integrated value from a point in time when the integrated value is acquired to a point in time when the next first switching is determined.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 19, 2019
    Applicant: Keyence Corporation
    Inventors: Takamasa Koyama, Sotaro Ito
  • Publication number: 20190285449
    Abstract: To provide a clamp-on type ultrasonic flow sensor capable of calculating a flow rate of fluid flowing in a pipe. An elastic couplant 114 is supported on a pipe P by a clamp member 130 such that a pipe contact section T1 is in contact with the pipe P. The pipe contact section T1 is surrounded by a damping material 116 between the clamp member 130 and the pipe. An elastic couplant 124 is supported on the pipe by a clamp member 140 such that a pipe contact section T2 is in contact with the pipe. The pipe contact section T2 is surrounded by a damping material 126 between the clamp member 140 and the pipe. The clamp members 130 and 140 are coupled to each other to sandwich the pipe in a state in which the clamp members 130 and 140 respectively press the damping materials 116 and 126.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 19, 2019
    Applicant: Keyence Corporation
    Inventor: Hirokazu Niimura
  • Publication number: 20190285451
    Abstract: To provide a clamp-on type ultrasonic flow sensor capable of highly accurately measuring a flow rate. First and second head cables CA1 and CA2 are connected between a head section 10 and an intermediate section 20. A relay cable CA3 is connected between the intermediate section 20 and a main body section 30. Ultrasonic elements are housed in casings 11c and 12c of the head section 10. A driving circuit for driving the ultrasonic elements and a signal processing section configured to perform signal processing on ultrasonic signals output from the ultrasonic elements are housed in a casing 20c of the intermediate section 20. In the intermediate section 20, a switching circuit configured to switch a connection state of the two ultrasonic elements of the head section 10 and the signal processing section is provided.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 19, 2019
    Applicant: Keyence Corporation
    Inventors: Shinichi Tsukigi, Jiro Baba
  • Publication number: 20190285450
    Abstract: To provide a clamp-on type ultrasonic flow sensor capable of preventing deterioration in measurement accuracy of a flow rate due to deformation of a pipe. Elastic couplants CP1 and CP2 formed to surround the outer circumferential surface of a pipe are fixed while being pressed on the pipe P by fixing inner surfaces FS of two clamp members 131 and 132. An ultrasonic wave is propagated through the elastic couplants CP1 and CP2 and fluid in the pipe between a first ultrasonic element 101 and a second ultrasonic element 102. A cross section of the fixing inner surfaces FS of the clamp members 131 and 132 has a shape of a regular even-numbered polygonal shape centering on the axis of the pipe.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 19, 2019
    Applicant: Keyence Corporation
    Inventors: Shinichi Tsukigi, Yasunori Kawaguchi
  • Patent number: 10415958
    Abstract: Provided is a measuring device that can easily and accurately measure a shape at a desired point of a measuring object. A stage is held on an installation part. A head unit including a light projecting unit and a light receiving unit and the installation part are fixedly coupled together by a stand. An effective region is set to a space on the stage. Point cloud data corresponding to the effective region is obtained as measurement data from the generated point cloud data. Designation of a point to be measured in the measuring object is received, and a measurement value at the designated point is calculated based on the obtained measurement data.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: September 17, 2019
    Assignee: Keyence Corporation
    Inventor: Takashi Nakatsukasa
  • Patent number: 10415956
    Abstract: To provide an optical-scanning-height measuring device capable of reducing an unmeasurable region on the surface of a measurement object. Light emitted from a light emitting section is deflected by a deflecting section according to designation of a measurement point. Measurement light is sequentially irradiated on a plurality of portions P in a partial region PA including or surrounding a part of a measurement object S corresponding to the measurement point. A deflecting direction of the deflecting section corresponding to the partial region PA or an irradiation position of the measurement light corresponding to the partial region PA are detected by a detecting section.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 17, 2019
    Assignee: Keyence Corporation
    Inventor: Yuji Akishiba
  • Patent number: 10416086
    Abstract: The invention alleviates a burden on a user relating to an image inspection device based on photometric stereo and multi-spectral imaging. An illumination device 3 has three or more illumination blocks that irradiate a workpiece 2 with illumination beams from different directions, respectively. A camera 4 generates images of the workpiece 2. An image processing device 5 irradiates the workpieces 2 sequentially with illumination beams from light emitting elements of different lighting colors and generates a plurality of spectral images. The image processing device 5 sequentially turns on the three or more illumination blocks in units of blocks and generates a plurality of direction images. The image processing device 5 generates a color inspection image based on the plurality of spectral images and executes color inspection. The image processing device 5 generates a shape inspection image based on the plurality of direction images and executes shape inspection.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: September 17, 2019
    Assignee: Keyence Corporation
    Inventor: Manabu Kido
  • Patent number: 10379331
    Abstract: Lights in a plurality of emitting directions different from one another are selectively irradiated on the observation target from a light projecting section. A plurality of image data indicating images of the observation target at the time when the lights in the plurality of emitting directions are respectively irradiated on the observation target are generated by an imaging section. An imaginary emitting direction of light is designated on the basis of operation of an operation section by the user. Image data for display indicating an image of the observation target that should be obtained when it is assumed that the light in the designated emitting direction is irradiated on the observation target is generated on the basis of the designated emitting direction and the plurality of image data generated by the imaging section. The image based on the generated image data for display is displayed on the display section.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 13, 2019
    Assignee: KEYENCE CORPORATION
    Inventors: Masahiro Inomata, Shingo Matsumura
  • Patent number: 10373305
    Abstract: A feature portion desired by a user out of an inspection target image is accurately positioned. A standard region is set so as to surround a standard pattern in a standard image of a product to be a standard for an inspection target. A sorting region, which is a region for sorting a plurality of candidates similar to the standard pattern, is set in the inspection image. The standard pattern is searched from the inspection image, to extract a plurality of candidates similar to the standard pattern. The sorting region is disposed with respect to each of the plurality of candidates for the standard pattern, extracted in the extraction step, to sort a candidate for the standard pattern based on an evaluation value of the sorting region disposed with respect to each of the plurality of candidates for the standard pattern.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: August 6, 2019
    Assignee: Keyence Corporation
    Inventor: Masashi Nakao
  • Patent number: 10373302
    Abstract: A three-dimensional image processing apparatus includes: an image capturing part for acquiring reflected light to capture a plurality of pattern projected images; a distance image generating part capable of generating a distance image based on the plurality of pattern projected images; a tone conversion part for tone-converting the distance image generated in the distance image generating part to a low-tone distance image that has a lower number of tones than the number of tones of the distance image and is obtained by replacing height information in the distance image with a shade value of the image; and a tone conversion condition automatic setting part for automatically setting, based on the height information in the distance image, a tone conversion parameter for prescribing a tone conversion condition at the time of tone-converting the distance image to the low-tone distance image in the tone conversion part.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 6, 2019
    Assignee: Keyence Corporation
    Inventor: Kazuhito Saeki
  • Patent number: 10366485
    Abstract: A standard image of a product to be a standard for an inspection target is displayed, to set a first region so as to surround a standard pattern in the standard image. Further, a second region for characterizing a position and a posture of the standard pattern is set in the standard image. In a first search step, a feature extracted from the first region set in the standard image is searched from an inspection target image, to roughly obtain the position and the posture of the standard pattern in the inspection target image. In the second search step, the feature extracted from the second region set in the standard image is searched from the inspection target image, to minutely obtain at least one of the position and the posture of the standard pattern in the inspection target image.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: July 30, 2019
    Assignee: Keyence Corporation
    Inventor: Masashi Nakao
  • Publication number: 20190204071
    Abstract: To provide a confocal displacement sensor capable of easily and accurately measuring displacement of a measurement object. Light having a chromatic aberration is converged by a lens unit 220 and irradiated on a measurement object S from a measurement head 200. Light having a wavelength reflected while focusing on the surface of the measurement object S passes through the optical fiber 314 in the measurement head 200. The light passed through the optical fiber 314 is guided to a spectral section 130 in a processing device 100 and spectrally dispersed. In the processing device 100, the light spectrally dispersed by the spectral section 130 is received by a light receiving section 140. A light reception signal output from the light receiving section 140 is acquired by a control section 152. The control section 152 measures displacement on the basis of the acquired light reception signal and gives the light reception signal to a PC 600 on the outside.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Applicant: Keyence Corporation
    Inventor: Shoma Kuga
  • Publication number: 20190186896
    Abstract: To provide a confocal displacement sensor capable of reducing a measurement error. Light having a plurality of wavelengths is emitted by a light processing section 120. A chromatic aberration along an optical axis direction is caused by a lens unit 220 in the light emitted by the light projecting section 120. The light having the chromatic aberration converged and irradiated on a measurement object S by the lens unit 220. In the light irradiated on the measurement object S by the lens unit 220, light having a wavelength reflected while focusing on the surface of the measurement object S passes through a plurality of pinholes. Displacement of the measurement object S is calculated by an arithmetic processing section 150 on the basis of signal intensity for each wavelength of an average signal corresponding to an average of intensities for each wavelength concerning a plurality of lights passed through the plurality of pinholes.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Applicant: Keyence Corporation
    Inventor: Shoma Kuga
  • Publication number: 20190188437
    Abstract: [Object] To enhance accuracy at the time of setting with consideration of a cell size of a code when an exposure time is automatically set. [Means to solve the problems] An upper limit of an exposure time of an imaging part as a restriction condition for reading a code attached to a workpiece is calculated based on a moving speed of the workpiece, which is inputted by an input part, and a cell size, which is calculated by a cell size calculation part. An exposure time of the imaging part is set within the restriction condition by analyzing a plurality of images, which includes a code and is obtained by taking images multiple times by changing the exposure time of the imaging part.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Applicant: Keyence Corporation
    Inventors: Hidezumi Nagata, Taichi Tajika, Hiroomi Ohori, Taiga Nomi
  • Publication number: 20190190227
    Abstract: To prevent an output decrease of laser light due to impurities formed in a Q switch. A laser machining device includes a Q-switch housing section configured by housing a Q switch and a first mirror and a wavelength converting section including a housing in which a transmission window section capable of transmitting a fundamental wave is formed, the wavelength converting section being configured by airtightly housing, with an internal space surrounded by the housing, at least a first wavelength conversion element, a second wavelength conversion element, and a second mirror. A resonator forming a resonant optical path passing through the transmission window section is configured by the first mirror in the Q-switch housing section and the second mirror in the wavelength converting section.
    Type: Application
    Filed: October 23, 2018
    Publication date: June 20, 2019
    Applicant: Keyence Corporation
    Inventors: Masao Sato, Yu Takabatake, Hideki Yamakawa
  • Publication number: 20190190228
    Abstract: To appropriately change an output of laser light without deteriorating laser characteristics. A control section of a laser machining device controls, when a target output is larger than a predetermined threshold, an output of laser light by changing a driving current supplied to an excitation light source and, on the other hand, controls, when the target output is equal to or smaller than the threshold, the output of the laser light by changing a duty ratio of a Q switch while keeping the driving current supplied to the excitation light source substantially fixed.
    Type: Application
    Filed: October 23, 2018
    Publication date: June 20, 2019
    Applicant: Keyence Corporation
    Inventors: Masao Sato, Tatsuaki Nagai
  • Publication number: 20190184491
    Abstract: To prevent an output decrease of laser light due to impurities that could be formed in a guide-light emitting device or an imaging device. A laser-light guiding section includes a transmission window section, an optical component disposed to cause an optical path of the UV laser light emitted from the laser-light output section and an optical path of transmitted light transmitted through the transmission window section to cross, and a sealing member in which the transmission window section is provided, the sealing member configuring a sealed space for airtightly housing the optical component. At least one of a guide-light emitting device configured to emit guide light for visualizing a scanning position of the UV laser light toward the transmission window section and an imaging device configured to receive light for imaging a workpiece via the transmission window section is disposed on the outer side of the sealed space.
    Type: Application
    Filed: October 23, 2018
    Publication date: June 20, 2019
    Applicant: Keyence Corporation
    Inventors: Mamoru Idaka, Masaki Saito, Hideki Yamakawa, Kazuyoshi Ogawa
  • Patent number: 10323933
    Abstract: Provided is a measuring device having improved operability. A head unit is fixedly coupled to an installation part with a stand. A measuring object is placed on a stage held by the installation part. The measuring object is irradiated obliquely downward with the measurement light having the pattern from the light projecting unit. The measurement light reflected obliquely upward by the measuring object is received by a selected one of first and second light receiving units, and a light reception signal representing a light reception amount is output. A second imaging visual field of the second light receiving unit is smaller than a first imaging visual field of the first light receiving unit, and included in the first imaging visual field. A second optical axis of the second light receiving unit is located below a first optical axis of the first light receiving unit.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 18, 2019
    Assignee: Keyence Corporation
    Inventors: Masaki Fujiwara, Shigeto Murakami, Takashi Nakatsukasa
  • Patent number: 10317516
    Abstract: Provided is an optical safety system that enables simplification of an editing operation for area designation information. A safety scanner includes an intrusion sensing section that determines the presence or absence of an intruder into a protection area. The setting support device includes a pseudo determination information generation section that determines a presence or absence of an intruder into a protection area on the basis of an area designation information before being transmitted to the safety scanner and a distance measurement information received from the safety scanner and generates a pseudo determination information indicating the determination result.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: June 11, 2019
    Assignee: Keyence Corporation
    Inventors: Satoru Tomoshi, Kentaro Yamazaki
  • Patent number: 10304176
    Abstract: The invention alleviates a burden on a user relating to selection of a lighting color required for image inspection by multi-spectral imaging. A processor controls an illumination device to irradiate a setting target object individually with an illumination beam of each lighting color in a predetermined order, thereby generating a plurality of spectral images. The processor sets a combination of lighting colors recommended to illuminate an inspection target object based on the plurality of spectral images. An inspection unit inspects the inside of each inspection region in a plurality of inspection images generated for the inspection target object illuminated by illumination beams of lighting colors according to the set combination of recommended lighting colors.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: May 28, 2019
    Assignee: Keyence Corporation
    Inventor: Manabu Kido