Patents by Inventor Yasuhiro Matsutani
Yasuhiro Matsutani 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: 11956092Abstract: A communication system includes a master device, a connector, a superordinate trunk cable connecting the master device and the connector, a superordinate slave device connected to the connector, a subordinate slave device, and a subordinate trunk cable connecting the connector and the subordinate slave device. The connector includes a superordinate power line via which power is supplied from the master device, a power branching unit to divide the superordinate power line into a first power line connected to the superordinate slave device and a second power line connected to the subordinate slave device, a superordinate signal line via which communication data between the master device and the superordinate slave device is configured to be transmitted, and a subordinate signal line via which communication data between the superordinate slave device and the subordinate slave device is configured to be transmitted.Type: GrantFiled: July 21, 2021Date of Patent: April 9, 2024Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu Koga, Kunihiko Ogawa, Isamu Matsumura, Junya Hisamatsu, Yasuhiro Matsutani
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Patent number: 11860007Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: GrantFiled: December 22, 2022Date of Patent: January 2, 2024Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
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Patent number: 11675328Abstract: An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.Type: GrantFiled: September 6, 2020Date of Patent: June 13, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Yasuhiro Matsutani, Daisuke Furukawa, Ryo Inoue
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Publication number: 20230129497Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TAKADA, Yasushi YOSHIDA, Shiro YOSHIDOMI, Masanobu HARADA, Yasuhiro MATSUTANI, Daisuke FURUKAWA
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Patent number: 11566920Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: GrantFiled: July 17, 2020Date of Patent: January 31, 2023Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi Takada, Yasushi Yoshida, Shiro Yoshidomi, Masanobu Harada, Yasuhiro Matsutani, Daisuke Furukawa
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Publication number: 20220326003Abstract: An encoder includes: an optical module that detects angular position information indicating an angular position of a rotating disk within one rotation thereof; a magnetic detecting unit that detects multi-rotation information indicating the number of rotations of the disk; a battery that supplies a power to the magnetic detecting unit when an external power is not supplied to the encoder; and a connector that connects connection terminals of the battery to a substrate to which at least one of the optical module and the magnetic detecting unit is connected, via solders in contact with the connection terminals.Type: ApplicationFiled: March 29, 2022Publication date: October 13, 2022Inventors: Ryo INOUE, Ikuma MUROKITA, Kenichi SADAKANE, Masanobu HARADA, Yuji ARINAGA, Yasuhiro MATSUTANI
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Publication number: 20210351949Abstract: A communication system includes a master device, a connector, a superordinate trunk cable connecting the master device and the connector, a superordinate slave device connected to the connector, a subordinate slave device, and a subordinate trunk cable connecting the connector and the subordinate slave device. The connector includes a superordinate power line via which power is supplied from the master device, a power branching unit to divide the superordinate power line into a first power line connected to the superordinate slave device and a second power line connected to the subordinate slave device, a superordinate signal line via which communication data between the master device and the superordinate slave device is configured to be transmitted, and a subordinate signal line via which communication data between the superordinate slave device and the subordinate slave device is configured to be transmitted.Type: ApplicationFiled: July 21, 2021Publication date: November 11, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hidetsugu KOGA, Kunihiko OGAWA, Isamu MATSUMURA, Junya HISAMATSU, Yasuhiro MATSUTANI
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Publication number: 20210072721Abstract: An encoder includes a disc and a sensor. The disc has a circular surface with a central axis and is rotatable around the central axis. The disc has a slit row provided on the circular surface. The slit row includes slits arranged in a circumferential direction of the circular surface around the central axis and in a radial direction of the circular surface. The sensor is provided opposite to the slit row on circular surface. The sensor has a first light receiver and a second light receiver. The first light receiver is configured to output a first light receiving signal as the slit row rotates along the circumferential direction when the disc rotates around the central axis. The second light receiver is configured to output a second light receiving signal as the slit row moves along the radial direction when the disc rotates around the central axis.Type: ApplicationFiled: September 6, 2020Publication date: March 11, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TAKADA, Yasushi YOSHIDA, Yasuhiro MATSUTANI, Daisuke FURUKAWA, Ryo INOUE
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Publication number: 20210018890Abstract: An encoder includes a scale and a sensor. The scale has first and second absolute patterns. The sensor includes a light source, and first and second absolute light receivers. The first and second absolute light receivers receive light from the first and second absolute patterns, respectively. The first absolute light receiver receives light from the first pattern and includes first and second light receiving elements. Each first light receiving elements outputs a first signal with a first phase. Each second light receiving elements outputs a first signal with a second phase. The first and second light receiving elements are arranged alternately. The second absolute light receiver includes third and fourth light receiving elements. Each third light receiving element outputs a second signal with the first phase. The third and fourth light receiving elements are arranged alternately. Each fourth light receiving element outputs a second signal with the second phase.Type: ApplicationFiled: July 17, 2020Publication date: January 21, 2021Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Hiroshi TAKADA, Yasushi YOSHIDA, Shiro YOSHIDOMI, Masanobu HARADA, Yasuhiro MATSUTANI, Daisuke FURUKAWA
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Patent number: 10498522Abstract: A sensor includes an upper-level connection port, a lower-level connection port, a command receiver, a wait time period setter, and a motor-related information obtainer. The upper-level connection port is configured to communicate with an upper-level sensor or an upper-level controller. The lower-level connection port is configured to communicate with a lower-level sensor. The command receiver is configured to receive a command from the upper-level controller. The wait time period setter is configured to set a wait time period based on an order of connection of at least the upper-level sensor or the upper-level controller, the sensor, and the lower-level sensor. The motor-related information obtainer is configured to obtain motor-related information, which relates to a motor, at a timing determined by the command and at a timing based on the wait time period.Type: GrantFiled: May 20, 2016Date of Patent: December 3, 2019Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko Ogawa, Ryota Moriwaka, Yasuhiro Matsutani
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Patent number: 10454346Abstract: An encoder includes a first disc and a second disc, a first detector, a second detector, a rotation count detector, and a sender. The first disc and the second disc are mounted on a rotation shaft of a motor. The first detector is configured to detect a rotation position of the first disc within one rotation of the first disc. The second detector is configured to detect that the second disc has made one rotation. The rotation count detector is configured to count a rotation count of the second disc based on an output from the second detector. The sender is configured to send sending data including the rotation position and the rotation count.Type: GrantFiled: May 20, 2016Date of Patent: October 22, 2019Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko Ogawa, Keita Ogoh, Yasuhiro Matsutani
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Patent number: 9690287Abstract: A servo system includes a motor having a stator and a movable element which moves relative to the stator, an encoder which detects at least one of a position and a speed of the movable element of the motor, and a controller including first circuitry which controls operation of the motor based on a detection result of the encoder. The first circuitry of the controller transmits a first command signal that changes a communication speed between the encoder and the controller from a first speed to a second speed which is higher than the first speed, and the encoder includes second circuitry which changes the communication speed between the encoder and the controller to the second speed when the first command signal is received from the controller.Type: GrantFiled: April 29, 2016Date of Patent: June 27, 2017Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventor: Yasuhiro Matsutani
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Patent number: 9625283Abstract: An encoder includes a track having optical effecters arranged to have an absolute pattern in a measurement direction, a light source configured to emit diffusion light to the track, and a light receiving array configured to have light receiving elements arranged in the measurement direction and to receive light reflected or transmitted by the track. The light receiving elements fall within an area which is positioned corresponding to an area between the optical effecters and to which the light reflected by the track dose not reach.Type: GrantFiled: October 29, 2014Date of Patent: April 18, 2017Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Patent number: 9562794Abstract: An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, a second light-receiving array, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns. The third light-receiving array is configured to receive light reflected by the slit track comprising an absolute pattern.Type: GrantFiled: November 4, 2014Date of Patent: February 7, 2017Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Publication number: 20160344266Abstract: A sensor includes an upper-level connection port, a lower-level connection port, a command receiver, a wait time period setter, and a motor-related information obtainer. The upper-level connection port is configured to communicate with an upper-level sensor or an upper-level controller. The lower-level connection port is configured to communicate with a lower-level sensor. The command receiver is configured to receive a command from the upper-level controller. The wait time period setter is configured to set a wait time period based on an order of connection of at least the upper-level sensor or the upper-level controller, the sensor, and the lower-level sensor. The motor-related information obtainer is configured to obtain motor-related information, which relates to a motor, at a timing determined by the command and at a timing based on the wait time period.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko OGAWA, Ryota MORIWAKA, Yasuhiro MATSUTANI
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Publication number: 20160344267Abstract: An encoder includes a first disc and a second disc, a first detector, a second detector, a rotation count detector, and a sender. The first disc and the second disc are mounted on a rotation shaft of a motor. The first detector is configured to detect a rotation position of the first disc within one rotation of the first disc. The second detector is configured to detect that the second disc has made one rotation. The rotation count detector is configured to count a rotation count of the second disc based on an output from the second detector. The sender is configured to send sending data including the rotation position and the rotation count.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kunihiko OGAWA, Keita OGOH, Yasuhiro MATSUTANI
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Patent number: 9436166Abstract: An encoder includes a plurality of slit tracks, a point light source, a first to third light-receiving arrays. The plurality of slit tracks respectively comprises a plurality of reflection slits. The point light source emits diffusion light to the plurality of slit tracks. The first light-receiving array receives light reflected by the slit track comprising an incremental pattern. The second light-receiving array receives light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array, The third light-receiving array receives light reflected by the slit track comprising an absolute pattern, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array.Type: GrantFiled: November 4, 2014Date of Patent: September 6, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Publication number: 20160246289Abstract: A servo system includes a motor having a stator and a movable element which moves relative to the stator, an encoder which detects at least one of a position and a speed of the movable element of the motor, and a controller including first circuitry which controls operation of the motor based on a detection result of the encoder. The first circuitry of the controller transmits a first command signal that changes a communication speed between the encoder and the controller from a first speed to a second speed which is higher than the first speed, and the encoder includes second circuitry which changes the communication speed between the encoder and the controller to the second speed when the first command signal is received from the controller.Type: ApplicationFiled: April 29, 2016Publication date: August 25, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventor: Yasuhiro MATSUTANI
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Patent number: 9423279Abstract: An optical module includes: a light source configured to emit diffusion light to tracks; one light receiving array and another light receiving array which are arranged across the light source in a width direction substantially vertical to the measurement direction; a light receiving array arranged between the one light receiving array and the light source, and configured to receive light which is reflected at the tracks having a first incremental pattern; and a light receiving array arranged between the another first light receiving array and the light source, and configured to receive light which is reflected at the tracks having a second incremental pattern which pitch is longer than a pitch of the first incremental pattern.Type: GrantFiled: October 29, 2014Date of Patent: August 23, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi Yoshida, Yasuhiro Matsutani, Shiro Yoshidomi, Hiroshi Takada, Yuji Arinaga, Ikuma Murokita, Masanobu Harada, Hiroki Kondo
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Publication number: 20160178407Abstract: An encoder includes an absolute pattern, a light source, and a plurality of light reception elements. The absolute pattern is disposed in a measurement direction. The light source is configured to emit light to the absolute pattern. The plurality of light reception elements are arranged in the measurement direction and are configured to receive the light emitted from the light source and transmitted through or reflected by the absolute pattern. The plurality of light reception elements include a first light reception element having a shape asymmetrical in the measurement direction.Type: ApplicationFiled: November 25, 2015Publication date: June 23, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Yasushi YOSHIDA, Yasuhiro MATSUTANI, Hiroki KONDO, Ikuma MUROKITA, Masanobu HARADA, Jiro MURAOKA