Patents by Inventor Yusuke Otsubo
Yusuke Otsubo 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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Patent number: 10747976Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: GrantFiled: October 25, 2018Date of Patent: August 18, 2020Assignee: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Patent number: 10222115Abstract: Provided are a refrigeration cycle that is formed by connecting a compressor, a condenser, expansion means, and an evaporator and that performs cooling operation; an evaporator heating device that heats the evaporator; a drain pan that receives drain-water from the evaporator and drains the drain-water; a drain-pan heating device that heats the drain pan; frost detecting means including a light-emitting element that emits light to the evaporator and a light-receiving element that receives reflected light from the evaporator and outputs a voltage according to the reflected light; and a control device that controls on-off operation of the evaporator heating device and the drain-pan heating device. The control device determines a frosting condition on the evaporator from an output of the frost detecting means and individually controls the evaporator heating device and the drain-pan heating device in accordance with the determination result.Type: GrantFiled: November 23, 2016Date of Patent: March 5, 2019Assignee: Mitsubishi Electric CorporationInventors: Mamoru Hamada, Fumitake Unezaki, Akira Morikawa, Satoshi Ueyama, Koji Yamashita, Hiroyuki Morimoto, Yuji Motomura, Tetsuya Yamashita, Yusuke Otsubo
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Publication number: 20190065800Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Applicant: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Patent number: 10146977Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: GrantFiled: February 13, 2018Date of Patent: December 4, 2018Assignee: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Publication number: 20180225491Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: ApplicationFiled: February 13, 2018Publication date: August 9, 2018Applicant: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Patent number: 9946910Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: GrantFiled: December 2, 2016Date of Patent: April 17, 2018Assignee: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Publication number: 20170083733Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: ApplicationFiled: December 2, 2016Publication date: March 23, 2017Applicant: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Publication number: 20170074577Abstract: Provided are a refrigeration cycle that is formed by connecting a compressor, a condenser, expansion means, and an evaporator and that performs cooling operation; an evaporator heating device that heats the evaporator; a drain pan that receives drain-water from the evaporator and drains the drain-water; a drain-pan heating device that heats the drain pan; frost detecting means including a light-emitting element that emits light to the evaporator and a light-receiving element that receives reflected light from the evaporator and outputs a voltage according to the reflected light; and a control device that controls on-off operation of the evaporator heating device and the drain-pan heating device. The control device determines a frosting condition on the evaporator from an output of the frost detecting means and individually controls the evaporator heating device and the drain-pan heating device in accordance with the determination result.Type: ApplicationFiled: November 23, 2016Publication date: March 16, 2017Inventors: Mamoru HAMADA, Fumitake UNEZAKI, Akira MORIKAWA, Satoshi UEYAMA, Koji YAMASHITA, Hiroyuki MORIMOTO, Yuji MOTOMURA, Tetsuya YAMASHITA, Yusuke OTSUBO
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Patent number: 9574816Abstract: A refrigeration cycle that is formed by connecting a compressor, a condenser, an expansion valve, and an evaporator and that performs cooling operation; an evaporator heating device that heats the evaporator; a drain pan that receives drain-water from the evaporator and drains the drain-water; a drain-pan heating device that heats the drain pan; a frost detecting device including a light-emitting element that emits light to the evaporator and a light-receiving element that receives reflected light from the evaporator and outputs a voltage according to the reflected light; and a control device that controls on-off operation of the evaporator heating device and the drain-pan heating device. The control device determines a frosting condition on the evaporator from an output of the frost detecting device and individually controls the evaporator heating device and the drain-pan heating device in accordance with the determination result.Type: GrantFiled: May 26, 2010Date of Patent: February 21, 2017Assignee: Mitsubishi Electric CorporationInventors: Mamoru Hamada, Fumitake Unezaki, Akira Morikawa, Satoshi Ueyama, Koji Yamashita, Hiroyuki Morimoto, Yuji Motomura, Tetsuya Yamashita, Yusuke Otsubo
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Patent number: 9542583Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: GrantFiled: July 9, 2015Date of Patent: January 10, 2017Assignee: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Publication number: 20160034734Abstract: Provided is an optical information reading device that can reduce an installation load on a user, and can accurately read a code provided to each of various workpieces. A polarized illumination light source includes light emitters that irradiate the workpiece with illumination light through a polarization filter. A non-polarized illumination light source includes light emitters that irradiate the workpiece with illumination light without through a polarization filter. An imaging element is provided with a polarization filter having a polarization direction different from a polarization direction of the polarization filter of the light emitters. Either of the polarized illumination light source and the non-polarized illumination light source is used in accordance with the workpiece.Type: ApplicationFiled: July 9, 2015Publication date: February 4, 2016Applicant: Keyence CorporationInventors: Hidezumi Nagata, Taichi Tajika, Yusuke Otsubo
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Patent number: 8534558Abstract: In an optical information reader, an entire size is reduced while a space for accommodating an imaging unit, a space for accommodating a cable of an external interface, and a space for accommodating plural boards in which circuits of a signal processing unit are accommodated are secured. An entire size of a housing is determined based on sizes of a main board and an imaging unit to realize an optical information reader having a minimum shape. The main board has the largest area as a board, and a CPU and a memory are mounted thereon. The imaging unit includes a camera module, a lighting LED unit, and a marker. The main board is disposed near an internal wall of a housing. Other functions are functionally divided into sub-boards and disposed around a frame body, and a connection portion to the cable is accommodated in the frame body to achieve miniaturization.Type: GrantFiled: August 26, 2010Date of Patent: September 17, 2013Assignee: Keyence CorporationInventors: Akihiro Miyoshi, Minoru Taneda, Yusuke Otsubo
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Publication number: 20130031921Abstract: A refrigeration cycle that is formed by connecting a compressor, a condenser, expansion means, and an evaporator and that performs cooling operation; an evaporator heating device that heats the evaporator; a drain pan that receives drain-water from the evaporator and drains the drain-water; a drain-pan heating device that heats the drain pan; frost detecting means including a light-emitting element that emits light to the evaporator and a light-receiving element that receives reflected light from the evaporator and outputs a voltage according to the reflected light; and a control device that controls on-off operation of the evaporator heating device and the drain-pan heating device. The control device determines a frosting condition on the evaporator from an output of the frost detecting means and individually controls the evaporator heating device and the drain-pan heating device in accordance with the determination result.Type: ApplicationFiled: May 26, 2010Publication date: February 7, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Mamoru Hamada, Fumitake Unezaki, Akira Morikawa, Satoshi Ueyama, Koji Yamashita, Hiroyuki Morimoto, Yuji Motomura, Tetsuya Yamashita, Yusuke Otsubo
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Publication number: 20110068174Abstract: In an optical information reader, an entire size is reduced while a space for accommodating an imaging unit, a space for accommodating a cable of an external interface, and a space for accommodating plural boards in which circuits of a signal processing unit are accommodated are secured. An entire size of a housing is determined based on sizes of a main board and an imaging unit to realize an optical information reader having a minimum shape. The main board has the largest area as a board, and a CPU and a memory are mounted thereon. The imaging unit includes a camera module, a lighting LED unit, and a marker. The main board is disposed near an internal wall of a housing. Other functions are functionally divided into sub-boards and disposed around a frame body, and a connection portion to the cable is accommodated in the frame body to achieve miniaturization.Type: ApplicationFiled: August 26, 2010Publication date: March 24, 2011Applicant: KEYENCE CORPORATIONInventors: Akihiro Miyoshi, Minoru Taneda, Yusuke Otsubo
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Patent number: 6969005Abstract: An optical unit for an optical symbol reader comprises an optical scanner for scanning an optical symbol with the laser beam emitted by a light source, by angularly oscillating a reflection face for reflecting the laser beam owing to an electromagnetic force. The optical scanner comprises a loose bearing structure having a shaft and a bearing bore and supporting a rotor having the reflection face to angularly oscillate freely with respect to a base. A certain bearing gap is formed between an outer diameter of the shaft and an inner diameter of the bearing bore. The optical scanner further comprises a coil spring resiliently for urging the rotor in a predetermined direction so that a part of an outer circumferential face of the shaft may be contacted with an inner circumferential face of a bearing bore.Type: GrantFiled: March 31, 2003Date of Patent: November 29, 2005Assignee: Keyence CorporationInventor: Yusuke Otsubo
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Publication number: 20040026512Abstract: An optical unit for an optical symbol reader comprises an optical scanner for scanning an optical symbol with the laser beam emitted by a light source, by angularly oscillating a reflection face for reflecting the laser beam owing to an electromagnetic force. The optical scanner comprises a loose bearing structure having a shaft and a bearing bore and supporting a rotor having the reflection face to angularly oscillate freely with respect to a base. A certain bearing gap is formed between an outer diameter of the shaft and an inner diameter of the bearing bore. The optical scanner further comprises a coil spring resiliently for urging the rotor in a predetermined direction so that a part of an outer circumferential face of the shaft may be contacted with an inner circumferential face of a bearing bore.Type: ApplicationFiled: March 31, 2003Publication date: February 12, 2004Inventor: Yusuke Otsubo