Patents by Inventor Hideaki Nakayama
Hideaki Nakayama 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: 12131235Abstract: A medical information processing apparatus comprises: an obtaining unit that obtains medical information; a learning unit that performs machine learning on a function of the medical information processing apparatus using the medical information; an evaluation data holding unit that holds evaluation data for evaluating a learning result of the learning unit; and an evaluating unit that evaluates a learning result obtained through machine learning, based on the evaluation data.Type: GrantFiled: February 1, 2021Date of Patent: October 29, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Yoshihito Machida, Yoshinori Hirano, Hideaki Miyamoto, Daisuke Yamada, Akiya Nakayama
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Publication number: 20240298931Abstract: A blood glucose measurement device capable of measuring a blood glucose in the blood while suppressing the influence of light absorption by water in a living body. The blood glucose measurement device includes a light source that irradiates light having a wavelength selected from a wavelength band of 800 to 950 nm, and a sensor that receives light transmitted, reflected, or scattered in a living body and outputs information according to the amount of light received. A blood glucose acquisition unit acquires the blood glucose in the blood in the living body based on the information obtained by the sensor.Type: ApplicationFiled: February 14, 2022Publication date: September 12, 2024Applicants: ZEON CORPORATION, TOHOKU UNIVERSITY, FURUKAWA ELECTRIC CO., LTD.Inventors: Koji KAWAJIRI, Rihito KURODA, Yasuyuki FUJIHARA, Shota NAKAYAMA, Hideaki HASEGAWA
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Patent number: 11171591Abstract: A control apparatus sets a value of the field current command and a value of the armature related command in accordance with drive information and the setting information stored in the storage unit; the value of the field current command and the value of the armature related command correspond to the obtained drive information. The control apparatus controls a field current flowing through the field winding to the set value of the field current command, and controls a current flowing through the armature winding or a voltage applied to the armature winding to the set value of the armature related command.Type: GrantFiled: April 2, 2020Date of Patent: November 9, 2021Assignee: DENSO CORPORATIONInventors: Akeru Ishikawa, Takuya Kawamura, Hideaki Nakayama, Koji Irie
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Publication number: 20200235688Abstract: A control apparatus sets a value of the field current command and a value of the armature related command in accordance with drive information and the setting information stored in the storage unit; the value of the field current command and the value of the armature related command correspond to the obtained drive information. The control apparatus controls a field current flowing through the field winding to the set value of the field current command, and controls a current flowing through the armature winding or a voltage applied to the armature winding to the set value of the armature related command.Type: ApplicationFiled: April 2, 2020Publication date: July 23, 2020Applicant: DENSO CORPORATIONInventors: Akeru ISHIKAWA, Takuya KAWAMURA, Hideaki NAKAYAMA, Koji IRIE
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Patent number: 10608566Abstract: A control apparatus for a rotary electric machine includes at least one of a first corrector and a second corrector. The first corrector corrects a first command voltage as a function of a deviation between a command value for a field current and an actual value of the field current. The second corrector corrects a second command voltage as a function of a deviation between a command value for a d-axis component of an armature current and an actual value of the d-axis component of the armature current. At least one of the first corrector and the second corrector makes the d-axis component of the armature current and the field current non-interfere with each other.Type: GrantFiled: July 21, 2016Date of Patent: March 31, 2020Assignee: DENSO CORPORATIONInventors: Jun Ishida, Hideaki Nakayama
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Patent number: 10378922Abstract: A rotation angle detection apparatus includes a magnet that is provided to a rotating shaft of a rotating body and rotates with the rotating shaft to generate magnetic flux and a magnetic sensor that is provided at a distance from the magnet and detects a magnetic flux interlinked with the magnetic sensor. The rotation angle detection apparatus has a magnet magnetic flux detection circuit that detects a magnet magnetic flux generated from the magnet, a disturbance magnetic flux detection circuit that detects a disturbance magnetic flux, which is a magnetic flux other than the magnet magnetic flux and is interlinked with the magnetic sensor, and a correction circuit that corrects a result of detection of the magnetic sensor based on a result of detection of the magnet magnetic flux detection circuit and a result of detection of the disturbance magnetic flux detection circuit.Type: GrantFiled: January 13, 2016Date of Patent: August 13, 2019Assignee: DENSO CORPORATIONInventors: Takuya Kawamura, Hirofumi Kinjou, Toru Wakimoto, Hideaki Nakayama, Masataka Yoshimura
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Publication number: 20180219503Abstract: A control apparatus for a rotary electric machine includes at least one of a first corrector and a second corrector. The first corrector corrects a first command voltage as a function of a deviation between a command value for a field current and an actual value of the field current. The second corrector corrects a second command voltage as a function of a deviation between a command value for a d-axis component of an armature current and an actual value of the d-axis component of the armature current. At least one of the first corrector and the second corrector makes the d-axis component of the armature current and the field current non-interfere with each other.Type: ApplicationFiled: July 21, 2016Publication date: August 2, 2018Applicant: DENSO CORPORATIONInventors: Jun ISHIDA, Hideaki NAKAYAMA
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Patent number: 10006784Abstract: A correction circuit stores data for obtaining coefficients of a relational expression indicating a relationship between a disturbance magnetic flux and a rotational angle error. Then, the coefficients are obtained from the data for obtaining the coefficients, and a detection result of a magnetic sensor is corrected based on the coefficients obtained, a relational expression, and a detection result of a disturbance magnetic flux detection circuit. Since it is possible to obtain the rotational angle error with respect to the disturbance magnetic flux from the coefficient obtained and the relational expression, it is not necessary to store the data indicating the relationship between the disturbance magnetic flux and the rotational angle error for all of the disturbance magnetic flux value in disturbance magnetic flux regions that may be applied.Type: GrantFiled: March 4, 2016Date of Patent: June 26, 2018Assignee: DENSO CORPORATIONInventors: Takuya Kawamura, Hirofumi Kinjou, Toru Wakimoto, Hideaki Nakayama, Masataka Yoshimura
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Patent number: 9979329Abstract: In a power converting device, a controller determines a combination pattern of a first energization pattern for the first set of the at least one-phase winding and a second energization pattern for the second set of the at least one-phase winding. The first and second energization patterns respectively include at least a first energization duration for the first set of the at least one-phase winding and a second energization duration for the second set of the at least one-phase winding. The controller supplies a drive pulse signal, whose on duration is based on the determined combination pattern, to the switch to thereby control on-off operations of the switch.Type: GrantFiled: October 2, 2014Date of Patent: May 22, 2018Assignee: DENSO CORPORATIONInventors: Masakazu Tago, Harumi Horihata, Hideaki Nakayama
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Publication number: 20170363444Abstract: A rotation angle detection apparatus includes a magnet that is provided to a rotating shaft of a rotating body and rotates with the rotating shaft to generate magnetic flux and a magnetic sensor that is provided at a distance from the magnet and detects a magnetic flux interlinked with the magnetic sensor. The rotation angle detection apparatus has a magnet magnetic flux detection circuit that detects a magnet magnetic flux generated from the magnet, a disturbance magnetic flux detection circuit that detects a disturbance magnetic flux, which is a magnetic flux other than the magnet magnetic flux and is interlinked with the magnetic sensor, and a correction circuit that corrects a result of detection of the magnetic sensor based on a result of detection of the magnet magnetic flux detection circuit and a result of detection of the disturbance magnetic flux detection circuit.Type: ApplicationFiled: January 13, 2016Publication date: December 21, 2017Applicant: DENSO CORPORATIONInventors: Takuya KAWAMURA, Hirofumi KINJOU, Toru WAKIMOTO, Hideaki NAKAYAMA, Masataka YOSHIMURA
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Patent number: 9847744Abstract: A control unit applied to a motor that includes a rotor having a field winding and a rotor having armature winding groups to control a field current passed through the field winding. Each of the armature winding groups is applied with a prescribed voltage. The field current is controlled so as to be a minimum field current value If_min with which a deviation between an amplitude of an induced voltage generated in the armature winding groups by rotation of the rotor, and an amplitude of the voltage applied to the armature winding groups becomes equal to or smaller than a prescribed value.Type: GrantFiled: October 21, 2015Date of Patent: December 19, 2017Assignee: DENSO CORPORATIONInventors: Kiyoshi Fujii, Hideaki Nakayama
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Patent number: 9748883Abstract: A rotating electrical machine has a rotor having a field winding and a stator having an armature winding. A control device adjusts a field current flowing in the field winding and an armature current flowing in the armature winding. The armature current flowing in the armature winding is expressed by using a current vector having a d-axis current and a q-axis current in a d-q coordinate system. In a case in which the control device increases the d-axis current to generate a magnetic flux in a direction which is opposite to a direction to generate a magnetic flux by a field current, the control device gradually reduces the d-axis current during a predetermined period of time after increasing the d-axis current in the direction opposite to the direction to generate the magnetic flux by the field current.Type: GrantFiled: February 8, 2016Date of Patent: August 29, 2017Assignee: DENSO CORPORATIONInventors: Kazutoshi Shiomi, Hideaki Nakayama, Kiyoshi Fujii
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Publication number: 20160265942Abstract: A correction circuit stores data for obtaining coefficients of a relational expression indicating a relationship between a disturbance magnetic flux and a rotational angle error. Then, the coefficients are obtained from the data for obtaining the coefficients, and a detection result of a magnetic sensor is corrected based on the coefficients obtained, a relational expression, and a detection result of a disturbance magnetic flux detection circuit. Since it is possible to obtain the rotational angle error with respect to the disturbance magnetic flux from the coefficient obtained and the relational expression, it is not necessary to store the data indicating the relationship between the disturbance magnetic flux and the rotational angle error for all of the disturbance magnetic flux value in disturbance magnetic flux regions that may be applied.Type: ApplicationFiled: March 4, 2016Publication date: September 15, 2016Applicant: DENSO CORPORATIONInventors: Takuya KAWAMURA, Hirofumi KINJOU, Toru WAKIMOTO, Hideaki NAKAYAMA, Masataka YOSHIMURA
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Publication number: 20160248359Abstract: A rotating electrical machine has a rotor having a field winding and a stator having an armature winding. A control device adjusts a field current flowing in the field winding and an armature current flowing in the armature winding. The armature current flowing in the armature winding is expressed by using a current vector having a d-axis current and a q-axis current in a d-q coordinate system. In a case in which the control device increases the d-axis current to generate a magnetic flux in a direction which is opposite to a direction to generate a magnetic flux by a field current, the control device gradually reduces the d-axis current during a predetermined period of time after increasing the d-axis current in the direction opposite to the direction to generate the magnetic flux by the field current.Type: ApplicationFiled: February 8, 2016Publication date: August 25, 2016Applicant: DENSO CORPORATIONInventors: Kazutoshi SHIOMI, Hideaki NAKAYAMA, Kiyoshi FUJII
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Publication number: 20160204727Abstract: There is provided a control unit (40) applied to a motor (10) that includes a rotor (12) having a field winding (11) and a rotor (13) having armature winding groups (10a, 10b) to control a field current passed through the field winding. Each of the armature winding groups is applied with a prescribed voltage. The field current is controlled so as to be a minimum field current value If_min with which a deviation between an amplitude of an induced voltage generated in the armature winding groups by rotation of the rotor, and an amplitude of the voltage applied to the armature winding groups becomes equal to or smaller than a prescribed value.Type: ApplicationFiled: October 21, 2015Publication date: July 14, 2016Inventors: Kiyoshi FUJII, Hideaki NAKAYAMA
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Patent number: 9325295Abstract: An elastic wave device includes an interdigital transducer (IDT) electrode disposed on an upper surface of a piezoelectric substrate, a wiring electrode disposed on the upper surface of the piezoelectric substrate and connected to the IDT electrode, and a first insulator layer disposed on the upper surface of the piezoelectric substrate. The first insulator layer seals the IDT electrode and the wiring electrode and includes a first resin and a first filler. A resin layer including no filler is provided on an upper surface of the first insulator layer. An inductor electrode is disposed on an upper surface of the resin layer. A second insulator layer is disposed on the upper surface of the resin layer and covers the inductor electrode. A terminal electrode is disposed on an upper surface of the second insulator layer. A connecting electrode electrically connects the wiring electrode, the terminal electrode, and the inductor electrode.Type: GrantFiled: July 27, 2015Date of Patent: April 26, 2016Assignee: SKYWORKS PANASONIC FILTER SOLUTIONS JAPAN CO., LTD.Inventors: Hideaki Nakayama, Atsushi Takano, Mitsuhiro Furukawa
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Patent number: 9312683Abstract: A vehicle-mounted electric rotating machine includes a field winding wound on a rotor for magnetizing a field pole of the rotor, a stator winding for generating an AC voltage in accordance with a rotating magnetic field generated by the field pole, a power converter for converting the AC voltage to a DC voltage and outputting the DC voltage through a first power supply line connected to an output terminal thereof, and a load dump handling section for performing a load dump protection operation when a voltage of the output terminal of the power converter exceeds a threshold voltage. The load dump handling section is supplied with operating power through a second power supply line provided separately from the first power supply line.Type: GrantFiled: October 15, 2014Date of Patent: April 12, 2016Assignee: DENSO CORPORATIONInventors: Hideaki Nakayama, Harumi Horihata
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Publication number: 20160036416Abstract: An elastic wave device includes an interdigital transducer (IDT) electrode disposed on an upper surface of a piezoelectric substrate, a wiring electrode disposed on the upper surface of the piezoelectric substrate and connected to the IDT electrode, and a first insulator layer disposed on the upper surface of the piezoelectric substrate. The first insulator layer seals the IDT electrode and the wiring electrode and includes a first resin and a first filler. A resin layer including no filler is provided on an upper surface of the first insulator layer. An inductor electrode is disposed on an upper to surface of the resin layer. A second insulator layer is disposed on the upper surface of the resin layer and covers the inductor electrode. A terminal electrode is disposed on an upper surface of the second insulator layer. A connecting electrode electrically connects the wiring electrode, the terminal electrode, and the inductor electrode.Type: ApplicationFiled: July 27, 2015Publication date: February 4, 2016Inventors: Hideaki Nakayama, Atsushi Takano, Mitsuhiro Furukawa
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Patent number: 9160251Abstract: In a rotary electric machine, an on-timing setter sets on-timings of each of a high-side switching element and a low-side switching element for each of at least two three-phase stator windings. An off-timing setter sets off-timings of each of the high-side switching element and the low-side switching element. An off-timing fault determiner determines a fault of an off-timing of a target switching element as one of the high-side switching element and the low-side switching element set by the off-timing setter when a time interval from the off-timing of the target switching element set by the off-timing setter to time when a phase voltage corresponding to the target switching element reaches a threshold after the off-timing thereof is shorter than a preset value.Type: GrantFiled: September 28, 2011Date of Patent: October 13, 2015Assignee: DENSO CORPORATIONInventors: Harumi Horihata, Hideaki Nakayama
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Patent number: 9124239Abstract: An elastic wave device includes a piezoelectric substrate, an IDT electrode disposed on the piezoelectric substrate, a wiring electrode disposed on the piezoelectric substrate and connected to the IDT electrode, a first insulator disposed on the piezoelectric substrate to seal the IDT electrode and the wiring electrode, a resin layer provided on the first insulator, an inductor electrode disposed on the resin layer, a second insulator disposed on the resin layer to cover the inductor electrode, a terminal electrode disposed on the second insulator, and a connecting electrode passing through the first insulator, the second insulator, and the resin layer to electrically connect the wiring electrode, the terminal electrode, and the inductor electrode. The first insulator includes a resin and filler dispersed in the resin. A density of filler in the resin layer is smaller than an average density of the filler in the first insulator.Type: GrantFiled: December 14, 2011Date of Patent: September 1, 2015Assignee: SKYWORKS PANASONIC FILTER SOLUTIONS JAPAN CO., LTD.Inventors: Hideaki Nakayama, Atsushi Takano, Mitsuhiro Furukawa