Patents by Inventor Tomokazu Ogomi
Tomokazu Ogomi 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: 10019863Abstract: A magnetic sensor device includes: a magnet; yokes arranged on the magnet; and a magnetoresistance effect element to which is applied a leakage magnetic field emitted from the yokes to an exterior thereof. A detection region of the magnetoresistance effect element is at the side opposite to the magnet. The magnetoresistance effect element detects a change of a bias magnetic field of the magnetoresistance effect element that occurs when the object to be detected including the hard magnetic material passes through the detection region. The magnetic sensor device can accurately detect an object to be detected using a hard magnetic material.Type: GrantFiled: June 9, 2015Date of Patent: July 10, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroyuki Asano, Tomokazu Ogomi, Kenji Shimohata, Sadaaki Yoshioka
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Patent number: 10008315Abstract: A magnetic circuit, provided with a short magnet (1a) and short magnet (1b) that are arranged in an array, and a yoke (2a) and a yoke (2b) provided so as to sandwich the short magnet (1a) and short magnet (1b). The short magnet (1a) and short magnet (1b), are arranged, that have a space between them that is a predetermined gap (3) or less in the arrangement direction of the array respectively. In addition, the short magnet (1a) and short magnet (1b) are arranged so that one magnetic pole is located on the side toward one of the pair of yokes (2a) and (2b), and the other magnetic pole is located on the side toward the other yoke.Type: GrantFiled: May 19, 2017Date of Patent: June 26, 2018Assignee: Mitsubishi Electric CorporationInventors: Masaaki Okada, Tomokazu Ogomi, Hiroyuki Asano, Takeshi Kishimoto, Kenji Shimohata
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Patent number: 10001532Abstract: A magnetic sensor device includes: a magnet, extending in a longitudinal direction, that has different magnetic poles in a direction perpendicular to a conveyance direction of a detected object having a magnetic material, the longitudinal direction being orthogonal to the conveyance direction; and anisotropic magnetoresistive elements arranged linearly in the longitudinal direction on a detected object-side magnetic pole of the magnet, wherein the magnet is provided with a magnetic material yoke between the anisotropic magnetoresistive elements and the magnet, and the end of the magnet in the longitudinal direction has a greater length in the direction perpendicular to the conveyance direction than the center in the longitudinal direction.Type: GrantFiled: May 12, 2015Date of Patent: June 19, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomokazu Ogomi, Kenji Shimohata
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Publication number: 20170256347Abstract: A magnetic circuit, provided with a short magnet (1a) and short magnet (1b) that are arranged in an array, and a yoke (2a) and a yoke (2b) provided so as to sandwich the short magnet (1a) and short magnet (1b). The short magnet (1a) and short magnet (1b), are arranged, that have a space between them that is a predetermined gap (3) or less in the arrangement direction of the array respectively. In addition, the short magnet (1a) and short magnet (1b) are arranged so that one magnetic pole is located on the side toward one of the pair of yokes (2a) and (2b), and the other magnetic pole is located on the side toward the other yoke.Type: ApplicationFiled: May 19, 2017Publication date: September 7, 2017Applicant: Mitsubishi Electric CorporationInventors: Masaaki OKADA, Tomokazu OGOMI, Hiroyuki ASANO, Takeshi KISHIMOTO, Kenji SHIMOHATA
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Patent number: 9729738Abstract: An image reading device including: a magnetic circuit comprising a magnet disposed on one side of a conveyance plane, the magnetic circuit generating a magnetic field in a direction perpendicular to the conveyance plane; a magnetoresistive effect element chip disposed between the magnetic circuit and the conveyance plane and detecting a strength change of a conveyance direction component of the magnetic field in the magnetic reading area when a medium to be read is conveyed on the conveyance plane; a light guide disposed on a side opposite to the magnetic circuit side with respect to the conveyance plane, and irradiating light onto the magnetic reading area on the conveyance plane; and an image forming optical system disposed on the side opposite to the magnetic circuit side with respect to the conveyance plane.Type: GrantFiled: September 30, 2015Date of Patent: August 8, 2017Assignee: Mitsubishi Electric CorporationInventors: Tomokazu Ogomi, Tomoyuki Miyata
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Publication number: 20170205474Abstract: A magnetic sensor device includes: a magnetic field generator, disposed at one surface side of a sheet-like to-be-detected object including a magnetic component, to generate an intersecting magnetic field intersecting the object; and a magnetoresistive effect element disposed between the object and the magnetic field generator, having a resistance value changing in accordance with change of a component of the intersecting magnetic field in a conveyance direction along which the object is conveyed, when the object is conveyed. The magnetoresistive effect element includes resistive elements adjacent to each other in the conveyance direction and interconnected by a bridge, disposed in linear symmetry relative to an axis perpendicular to the conveyance direction and extending through a center of the bridge. A position in the conveyance direction of the bridge center of the magnetoresistive effect element coincides with a position in the conveyance direction of the magnetic field generator center.Type: ApplicationFiled: July 24, 2015Publication date: July 20, 2017Applicant: Mitsubishi Electric CorporationInventors: Tomokazu OGOMI, Kenji SHIMOHATA, Hiroyuki ASANO, Jin INOUE
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Publication number: 20170199253Abstract: A magnetic sensor device including: a board mounted with a magnetoresistive effect element, a magnet to form a bias magnetic field for the magnetoresistive effect element, an enclosure having an opening on a side of a conveyance path where a to-be-detected object is conveyed, also including a housing portion to house the magnet and the board, and a cover to cover a surface on a side of the opening of the housing portion. The enclosure includes step portions on which the board is supported such that the board lies across the opening and extends parallel to the conveyance path, and grooves, continuous with the step portions, extending from the opening to an outer surface of the enclosure on a side of the conveyance direction.Type: ApplicationFiled: July 13, 2015Publication date: July 13, 2017Applicant: Mitsubishi Electric CorporationInventors: Masaaki OKADA, Hideki MATSUI, Tomokazu OGOMI, Sadaaki YOSHIOKA
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Publication number: 20170187896Abstract: An image reading device including: a magnetic circuit comprising a magnet disposed on one side of a conveyance plane, the magnetic circuit generating a magnetic field in a direction perpendicular to the conveyance plane; a magnetoresistive effect element chip disposed between the magnetic circuit and the conveyance plane and detecting a strength change of a conveyance direction component of the magnetic field in the magnetic reading area when a medium to be read is conveyed on the conveyance plane; a light guide disposed on a side opposite to the magnetic circuit side with respect to the conveyance plane, and irradiating light onto the magnetic reading area on the conveyance plane; and an image forming optical system disposed on the side opposite to the magnetic circuit side with respect to the conveyance plane.Type: ApplicationFiled: September 30, 2015Publication date: June 29, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomokazu OGOMI, Tomoyuki MIYATA
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Patent number: 9691533Abstract: A magnetic circuit, provided with a short magnet and short magnet that are arranged in an array, and a yoke and a yoke provided so as to sandwich the short magnet and short magnet. The short magnet and short magnet, are arranged, that have a space between them that is a predetermined gap or less in the arrangement direction of the array respectively. In addition, the short magnet and short magnet are arranged so that one magnetic pole is located on the side toward one of the pair of yokes and, and the other magnetic pole is located on the side toward the other yoke.Type: GrantFiled: January 21, 2013Date of Patent: June 27, 2017Assignee: Mitsubishi Electric CorporationInventors: Masaaki Okada, Tomokazu Ogomi, Hiroyuki Asano, Takeshi Kishimoto, Kenji Shimohata
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Publication number: 20170154487Abstract: A magnetic sensor device includes: a magnet; yokes arranged on the magnet; and a magnetoresistance effect element to which is applied a leakage magnetic field emitted from the yokes to an exterior thereof A detection region of the magnetoresistance effect element is at the side opposite to the magnet. The magnetoresistance effect element detects a change of a bias magnetic field of the magnetoresistance effect element that occurs when the object to be detected including the hard magnetic material passes through the detection region. The magnetic sensor device can accurately detect an object to be detected using a hard magnetic material.Type: ApplicationFiled: June 9, 2015Publication date: June 1, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroyuki ASANO, Tomokazu OGOMI, Kenji SHIMOHATA, Sadaaki YOSHIOKA
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Publication number: 20170153125Abstract: A magnetic sensor device includes: a magnetic circuit for forming a magnetic field, a magnetoresistance effect element, and a heat dissipator. The magnetoresistance effect element outputs changes in the magnetic field as changes in a resistance value, and is arranged on a surface (of a +Z side) of the magnetic circuit at a conveyance path side thereof. The heat dissipator is arranged in close contact with the magnetic circuit at the opposite side thereof (?Z side) from the conveyance path.Type: ApplicationFiled: June 17, 2015Publication date: June 1, 2017Applicant: Mitsubishi Electric CorporationInventors: Hideki MATSUI, Tatsuya KUNIEDA, Tomokazu OGOMI, Masaaki OKADA, Sadaaki YOSHIOKA
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Patent number: 9664533Abstract: A magnetic field generator disposed on one surface side of a sheet-shaped object-to-be-detected contains a magnetic component. The magnetic field generator includes a first magnetic pole part that forms a first magnetic pole, and a second magnetic pole part that forms a second magnetic pole with reverse polarity of the first magnetic pole. The magnetic field generator generates a cross magnetic field that crosses the object-to-be-detected. An MR element is disposed between the first magnetic pole part and the object-to-be-detected. The resistance value of the MR element changes according to a change in a component of the cross magnetic field in a conveying direction. The position of the MR element in the conveying direction is position shifted along the conveying direction from the center position of the first magnetic pole part in the conveying direction, and located between both ends of the first magnetic pole part in the conveying direction.Type: GrantFiled: February 5, 2014Date of Patent: May 30, 2017Assignee: Mitsubishi Electric CorporationInventors: Hiroyuki Asano, Toshiaki Shoji, Tomokazu Ogomi, Kenji Shimohata, Masaaki Okada, Miki Kagano, Masashi Hino, Hideki Matsui
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Publication number: 20170052233Abstract: A magnetic sensor device includes: a magnet, extending in a longitudinal direction, that has different magnetic poles in a direction perpendicular to a conveyance direction of a detected object having a magnetic material, the longitudinal direction being orthogonal to the conveyance direction; and anisotropic magnetoresistive elements arranged linearly in the longitudinal direction on a detected object-side magnetic pole of the magnet, wherein the magnet is provided with a magnetic material yoke between the anisotropic magnetoresistive elements and the magnet, and the end of the magnet in the longitudinal direction has a greater length in the direction perpendicular to the conveyance direction than the center in the longitudinal direction.Type: ApplicationFiled: May 12, 2015Publication date: February 23, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tomokazu OGOMI, Kenji SHIMOHATA
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Patent number: 9444952Abstract: A magnet is disposed on one side of a conveyance plane in which a sheet-like medium to be read is conveyed and generates a magnetic field in a direction perpendicular to the conveyance plane. A magnetoresistive effect element is disposed between the magnet and the conveyance plane, and detects an intensity variation in a conveyance direction component of the magnetic field in a magnetic reading area. An imaging optical system and a light receiver are disposed on the side opposite to the magnet side with respect to the conveyance plane. The imaging optical system forms an image of an optical reading area on the light receiver, the optical reading area including at least a portion in the conveyance direction of the magnetic reading area of the conveyance plane.Type: GrantFiled: April 3, 2014Date of Patent: September 13, 2016Assignee: Mitsubishi Electric CorporationInventors: Takuo Morimoto, Tomokazu Ogomi, Toshiaki Shoji, Masashi Hino, Toru Aramaki, Atsushi Ito
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Patent number: 9407217Abstract: When a switch is set to off, and a switch is set to on, the voltage of a SigOut terminal is stabilized with a reference voltage, and a bias voltage is applied to a capacitor. Changing the switch from on to off, with the bias voltage retained in the capacitor, a detection signal which is input via a SigIn terminal is amplified with the reference voltage as a reference, and an amplified signal is output from the SigOut terminal.Type: GrantFiled: June 12, 2012Date of Patent: August 2, 2016Assignee: Mitsubishi Electric CorporationInventors: Miki Kagano, Kazuya Makabe, Tomokazu Ogomi, Takahito Nakanishi, Tadashi Minobe, Takashi Ito
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Patent number: 9396366Abstract: A magnetic sensor device includes magnetic detection elements arrayed along a line intersecting the relative movement direction of a medium, and a magnet applying a bias magnetic field to the magnetic detection elements with a line of magnetic force in the constant direction. The magnetic sensor device detects a magnetic field change when a medium with a magnetic pattern passes through the bias magnetic field as an electric signal through the magnetic detection elements and reads the magnetic pattern of the medium. A plurality of reading switches is connected to the respective magnetic detection elements and an output line common to the magnetic detection elements. The magnetic sensor device includes a shift register closing the reading switches sequentially one by one to transfer the outputs from the magnetic detection elements sequentially one by one to the output line.Type: GrantFiled: November 6, 2013Date of Patent: July 19, 2016Assignee: Mitsubishi Electric CorporationInventors: Tomokazu Ogomi, Hironobu Arimoto, Satoshi Yamanaka, Kazuya Makabe
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Patent number: 9279866Abstract: A magnet is disposed on one face of a hollow section which is the conveyance path of an object of detection, and has a magnetic pole of designated length along the conveyance direction of the object of detection. A magnetic body is disposed along the conveyance direction opposite the magnet with the hollow section therebetween, and generates a cross magnetic field that crosses the hollow section formed between the magnetic body and the magnet. An anisotropic magnetoresistance element is disposed on the side of the magnetic body carrier facing the hollow section, and has magneto-sensing action in the conveyance direction.Type: GrantFiled: April 2, 2013Date of Patent: March 8, 2016Assignee: Mitsubishi Electric CorporationInventors: Tomokazu Ogomi, Kenji Shimohata, Hiroyuki Asano
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Patent number: 9244135Abstract: A magnetic sensor device includes a first magnet and a second magnet that are disposed on mutually opposing sides of a conveyance path, and one of poles of the first magnet faces an opposite pole of the second magnet. The first magnet and the second magnet generate a cross magnetic field whose strength in a spacing direction, which is orthogonal to a conveying direction, is within a predetermined range. An AMR element is located in a magnetic field in which the strength of the cross magnetic field in the spacing direction is within a predetermined range, and detects, as change in a resistance value, change in the cross magnetic field caused by an object to be detected. A multilayer board outputs the change in the resistance value detected by the AMR element to a processing circuit.Type: GrantFiled: May 11, 2012Date of Patent: January 26, 2016Assignee: Mitsubishi Electric CorporationInventors: Tomokazu Ogomi, Hiroyuki Asano, Toshiaki Shoji, Takeshi Musha, Jin Inoue, Masaaki Okada, Miki Kagano, Kazuya Makabe, Kenji Shimohata, Takeshi Kishimoto
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Patent number: 9234947Abstract: By providing a first magnet and a second magnet on wall surfaces of a hollow section where paper money is conveyed such that different magnetic poles face each other, a gradient magnetic field is formed wherein both a magnetic field component in an opposing direction to the magnets and a magnetic field component in a conveyance direction of the paper money include a zero point. An AMR element is provided between the paper money and the first magnet. The AMR element is enclosed by a multi-layered substrate and covered with resin. The AMR element is provided in an area where the magnetic field intensity is weak, which is where the magnetic field intensity in the gradient magnetic field in the conveyance direction is near zero. The paper money passes through an area where the magnetic field intensity of the gradient magnetic field is strong.Type: GrantFiled: July 28, 2011Date of Patent: January 12, 2016Assignee: Mitsubishi Electric CorporationInventors: Tomokazu Ogomi, Ryoji Shirahana, Toshiaki Shoji, Takeshi Musha, Jin Inoue, Masaaki Okada
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Publication number: 20150377650Abstract: A magnetic field generator disposed on one surface side of a sheet-shaped object-to-be-detected contains a magnetic component. The magnetic field generator includes a first magnetic pole part that forms a first magnetic pole, and a second magnetic pole part that forms a second magnetic pole with reverse polarity of the first magnetic pole. The magnetic field generator generates a cross magnetic field that crosses the object-to-be-detected. An MR element is disposed between the first magnetic pole part and the object-to-be-detected. The resistance value of the MR element changes according to a change in a component of the cross magnetic field in a conveying direction. The position of the MR element in the conveying direction is position shifted along the conveying direction from the center position of the first magnetic pole part in the conveying direction, and located between both ends of the first magnetic pole part in the conveying direction.Type: ApplicationFiled: February 5, 2014Publication date: December 31, 2015Inventors: Hiroyuki ASANO, Toshiaki SHOJI, Tomokazu OGOMI, Kenji SHIMOHATA, Masaaki OKADA, Miki KAGANO, Masashi HINO, Hideki MATSUI