Patents by Inventor Yoshihiro Kanetani
Yoshihiro Kanetani 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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Publication number: 20220075062Abstract: An optical measurement device is provided with: a light source for emitting light towards a target; a light-receiving unit that is configured so that each of a plurality of pixels is able to detect a received light amount, and that obtains a received light amount distribution signal of each of the pixels; an acquisition unit for acquiring a measured waveform signal from received light amount distribution signals for reflected light that is reflected by the target on the basis of received light amount distribution signals for when no target is present; and an adjustment unit for adjusting a sensitivity parameter with respect to the received light amount distribution signals of the reflected light so that the measured waveform signal is acquired when some of the received light amounts of the received light amount distribution signals of the reflected light are a predetermined value or higher.Type: ApplicationFiled: October 21, 2019Publication date: March 10, 2022Applicant: OMRON CorporationInventors: Jun TAKASHIMA, Yoshihiro KANETANI
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Patent number: 10514294Abstract: The optical measurement apparatus includes an interface unit and a measuring unit. The interface unit is configured to receive a synchronization signal transmitted from a PLC to a fieldbus at a constant communication cycle, and output, in synchronization with the synchronization signal, a result of measurement (a measured value) by the optical measurement apparatus and a synchronization supervisory signal. The measuring unit is configured to execute optical measurement at a measurement cycle irrelevant to the communication cycle and generate a result of the measurement and a synchronization supervisory signal. The measuring unit sets the synchronization supervisory signal into an ON state in synchronization with receipt of the synchronization signal by the interface unit after start of the measurement, and sets the synchronization supervisory signal into an OFF state in synchronization with receipt of the synchronization signal by the interface unit when the interface unit outputs the measurement result.Type: GrantFiled: June 28, 2017Date of Patent: December 24, 2019Assignee: OMRON CorporationInventors: Yoshihiro Kanetani, Tomonori Kondo, Yuta Suzuki
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Patent number: 10495448Abstract: A displacement measuring device capable of accurately measuring a distance to a measurement target surface is provided. The displacement measuring device includes a light projecting part generating light, a sensor head irradiating a measurement target with the light and receiving light of the irradiated light reflected by a measurement target surface of the measurement target, and a control part calculating a value indicating a distance to the measurement target surface on the basis of the light received by the sensor head. The control part processes the calculated value as the value indicating the distance to the measurement target surface on condition that the calculated value is included in a preset numerical range and resets the preset numerical range on the basis of the calculated value.Type: GrantFiled: February 12, 2018Date of Patent: December 3, 2019Assignee: OMRON CorporationInventors: Tomonori Kondo, Yuta Suzuki, Kenichi Matoba, Yoshihiro Kanetani
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Publication number: 20190094013Abstract: A displacement measuring device capable of accurately measuring a distance to a measurement target surface is provided. The displacement measuring device includes a light projecting part generating light, a sensor head irradiating a measurement target with the light and receiving light of the irradiated light reflected by a measurement target surface of the measurement target, and a control part calculating a value indicating a distance to the measurement target surface on the basis of the light received by the sensor head. The control part processes the calculated value as the value indicating the distance to the measurement target surface on condition that the calculated value is included in a preset numerical range and resets the preset numerical range on the basis of the calculated value.Type: ApplicationFiled: February 12, 2018Publication date: March 28, 2019Applicant: OMRON CorporationInventors: Tomonori KONDO, Yuta SUZUKI, Kenichi MATOBA, Yoshihiro KANETANI
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Publication number: 20180010962Abstract: The optical measurement apparatus includes an interface unit and a measuring unit. The interface unit is configured to receive a synchronization signal transmitted from a PLC to a fieldbus at a constant communication cycle, and output, in synchronization with the synchronization signal, a result of measurement (a measured value) by the optical measurement apparatus and a synchronization supervisory signal. The measuring unit is configured to execute optical measurement at a measurement cycle irrelevant to the communication cycle and generate a result of the measurement and a synchronization supervisory signal. The measuring unit sets the synchronization supervisory signal into an ON state in synchronization with receipt of the synchronization signal by the interface unit after start of the measurement, and sets the synchronization supervisory signal into an OFF state in synchronization with receipt of the synchronization signal by the interface unit when the interface unit outputs the measurement result.Type: ApplicationFiled: June 28, 2017Publication date: January 11, 2018Applicant: OMRON CorporationInventors: Yoshihiro KANETANI, Tomonori KONDO, Yuta SUZUKI
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Patent number: 8917900Abstract: In a measurement apparatus, higher-quality measurement is realized in measurement of measurement object displacement or imaging of a two-dimensional image. In a controller, a light receiving signal of a photodiode is supplied to a displacement measuring unit of a sensor head in order to measure a height of a measurement object, and the height of a surface of the measurement object is measured based on the light receiving signal. Then, in the controller, image obtaining timing is determined based on the height of the measurement object. Specifically, a focus adjustment value corresponding to the computed height of the measurement object is obtained from the table, and an image obtaining signal is transmitted to an imaging device at the timing the focus adjustment value is realized. Therefore, a length between two points on the measurement object is computed from the thus obtained image based on the height of the measurement object.Type: GrantFiled: February 25, 2010Date of Patent: December 23, 2014Assignee: Omron CorporationInventors: Yoshihiro Kanetani, Takahiro Suga, Hiroaki Takimasa, Naoya Nakashita, Yusuke Iida
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Publication number: 20100232650Abstract: In a measurement apparatus, higher-quality measurement is realized in measurement of measurement object displacement or imaging of a two-dimensional image. In a controller, a light receiving signal of a photodiode is supplied to a displacement measuring unit of a sensor head in order to measure a height of a measurement object, and the height of a surface of the measurement object is measured based on the light receiving signal. Then, in the controller, image obtaining timing is determined based on the height of the measurement object. Specifically, a focus adjustment value corresponding to the computed height of the measurement object is obtained from the table, and an image obtaining signal is transmitted to an imaging device at the timing the focus adjustment value is realized. Therefore, a length between two points on the measurement object is computed from the thus obtained image based on the height of the measurement object.Type: ApplicationFiled: February 25, 2010Publication date: September 16, 2010Inventors: Yoshihiro KANETANI, Takahiro SUGA, Hiroaki TAKIMASA, Naoya NAKASHITA, Yusuke IIDA
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Patent number: 7782451Abstract: A target surface of a target object including portions having different curvatures is inspected by using an illuminating device and a camera that are fixed, a supporting device for supporting the target object such that its position and orientation are variable. The position and orientation of the target object are controlled as its image is obtained for a plurality of times. The position and orientation of the target object are controlled such that the image of any point on the target surface will be included in at least one of the images obtained by the camera.Type: GrantFiled: February 14, 2007Date of Patent: August 24, 2010Assignee: OMRON CorporationInventors: Toshihiko Matsumoto, Hiroshi Okabe, Takashi Kinoshita, Yoshihiro Kanetani
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Publication number: 20070211242Abstract: Light sources emit irradiation lights respectively, so that edge parts of mutual irradiation areas (inspection areas) are superposed one another. The imaging apparatus receives regular reflection lights and generates two images corresponding to each of the light sources. A main control part combines two images and determines presence/absence of a defect. By irradiating an inspected surface A with the irradiation lights from mutually different directions, a position of an area showing the defect in each image is slightly deviated. Therefore, even if a dimension of an area showing the defect is small in each image, by superposing two images one another, the dimension of the area showing a defect part becomes large in the image after composition. Thus, an accuracy of defect detection on the edge part of the inspection area can be improved.Type: ApplicationFiled: March 7, 2007Publication date: September 13, 2007Inventors: Hiroshi Okabe, Yoshihiro Kanetani, Toshihiko Matsumoto
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Publication number: 20070211240Abstract: A target surface of a target object including portions having different curvatures is inspected by using an illuminating device and a camera that are fixed, a supporting device for supporting the target object such that its position and orientation are variable. The position and orientation of the target object are controlled as its image is obtained for a plurality of times. The position and orientation of the target object are controlled such that the image of any point on the target surface will be included in at least one of the images obtained by the camera.Type: ApplicationFiled: February 14, 2007Publication date: September 13, 2007Inventors: Toshihiko Matsumoto, Hiroshi Okabe, Takashi Kinoshita, Yoshihiro Kanetani