Patents by Inventor Masayuki Koizumi
Masayuki Koizumi 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: 20240142600Abstract: The present invention provides an object-position detector apparatus and detection method capable of detecting an object with high accuracy even in such a situation that adjacent objects or structures are close to each other such that reflected waves interfere with each other, as compared with the prior art. In the object-position detector apparatus that detects a position of an object based on a radar signal from a radar apparatus, a position estimator unit is configured to estimate presence or absence of and a position of the object using a machine learning model learned by predetermined training image data representing the position of the object, based on image data including the radar signal, and output image data representing the presence or absence of and the position of the estimated object.Type: ApplicationFiled: March 8, 2022Publication date: May 2, 2024Inventors: Mitsuaki KUBO, Keiki MATSUURA, Masayuki KOIZUMI, Daiki SHICHIJO, Ayaka IWADE, Yutaro OKUNO
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Publication number: 20240118142Abstract: An infrared module that enables temperature regulation of an infrared sensor to be readily achieved and a method of correcting the infrared module are provided. The infrared module (10) includes an infrared sensor (11) that detects infrared radiation emitted from an object being measured, a computation and control processor (20) that includes a temperature measurement unit (22) that obtains a signal from the infrared sensor and measures a temperature of its own, the computation and control processor obtaining a temperature signal from the temperature measurement unit and performing a computation, and a heating element (60) that regulates a temperature of the infrared sensor by generating heat, wherein the infrared sensor and the computation and control processor are stacked.Type: ApplicationFiled: October 3, 2023Publication date: April 11, 2024Applicant: Asahi Kasei Microdevices CorporationInventors: Yoshihiko KOIZUMI, Masayuki SATO
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Patent number: 11708114Abstract: A vehicle includes a vehicle body including: an elongated frame made of a first material and extending along a door opening; and an elongated rail made of a second material having a linear expansion coefficient different from that of the first material, the rail covering the frame and extending along the frame, the rail being configured to abut with a weather strip when a door closes the door opening. The rail is fixed to the frame at a plurality of fixation parts that includes: a first fixation part provided in an intermediate part of the rail in the longitudinal direction of the rail; and second fixation parts provided, respectively, in opposite end parts of the rail in its longitudinal direction. In the longitudinal direction of the rail, backlash widths at the second fixation parts are larger than a backlash width at the first fixation part.Type: GrantFiled: November 22, 2021Date of Patent: July 25, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihiro Yanaka, Shinji Kurachi, Masayuki Koizumi
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Patent number: 11623125Abstract: The present disclosure provides a rotation estimation device including an acquisition section and a rotation estimation section.Type: GrantFiled: March 9, 2021Date of Patent: April 11, 2023Assignee: OMRON CORPORATIONInventors: Yuki Sasaki, Masamune Nakayama, Kyohei Asai, Satoshi Yase, Masayuki Koizumi
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Publication number: 20220161644Abstract: A vehicle includes a vehicle body including: an elongated frame made of a first material and extending along a door opening; and an elongated rail made of a second material having a linear expansion coefficient different from that of the first material, the rail covering the frame and extending along the frame, the rail being configured to abut with a weather strip when a door closes the door opening. The rail is fixed to the frame at a plurality of fixation parts that includes: a first fixation part provided in an intermediate part of the rail in the longitudinal direction of the rail; and second fixation parts provided, respectively, in opposite end parts of the rail in its longitudinal direction. In the longitudinal direction of the rail, backlash widths at the second fixation parts are larger than a backlash width at the first fixation part.Type: ApplicationFiled: November 22, 2021Publication date: May 26, 2022Inventors: Akihiro Yanaka, Shinji Kurachi, Masayuki Koizumi
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Publication number: 20210283485Abstract: The present disclosure provides a rotation estimation device including an acquisition section and a rotation estimation section.Type: ApplicationFiled: March 9, 2021Publication date: September 16, 2021Applicant: OMRON CorporationInventors: Yuki Sasaki, Masamune Nakayama, Kyohei Asai, Satoshi Yase, Masayuki Koizumi
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Patent number: 10707868Abstract: A proximity sensor includes a transmission circuit that supplies a current to each of detection coils, a reception circuit that detects voltages generated at both ends of the coils or currents flowing in the coils due to the supply of the current for each of the coils, a control unit that senses the presence or position of a detection object using a detection result of the reception circuit, and an output unit that outputs a sensing result of the control unit. The control unit extracts a first component caused by a mounting fitting for mounting the proximity sensor on a support member and a second component caused by the detection object from the detection result of the reception circuit. The control unit compensates the second component using the first component. The control unit senses the presence or position of the detection object on the basis of the compensated second component.Type: GrantFiled: February 8, 2018Date of Patent: July 7, 2020Assignee: OMRON CorporationInventors: Masayuki Koizumi, Minami Wazumi, Yusuke Nakayama
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Patent number: 10527747Abstract: A proximity sensor includes a transmission circuit that periodically supplies an excitation current in a pulse form to a detection coil for generating a magnetic field, a reception circuit that detects voltages or currents generated at both ends of the detection coil by the periodic supply of the excitation current, and a controller that detects presence or a position of the detection body by utilizing a time series signal obtained by the detection. The controller acquires a factor that influences the detection of the detection body in a first period of the time series signal. The controller compensates a signal in a second period of the time series signal by the factor. The controller detects the presence or the position of the detection body on the basis of a signal after the compensation.Type: GrantFiled: December 15, 2017Date of Patent: January 7, 2020Assignee: OMRON CorporationInventors: Minami Wazumi, Masayuki Koizumi, Yusuke Nakayama
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Patent number: 10488226Abstract: A proximity sensor is provided with coils (11, 12) disposed in a pre-set positional relationship, a first distance calculation unit (31) and a second distance calculation unit (32) for calculating first distance information (d1) and second distance information (d2), respectively, from the coils (11, 12) to a detection object (W) on the basis of reception results (voltages V1, V2) of the coils (11, 12), and a position estimating unit (33) for estimating the position, such as distance and azimuth, of the detection object (W) on the basis of the first distance information (d1), the second distance information (d2), and the positional relationship of the coils (11, 12).Type: GrantFiled: January 6, 2017Date of Patent: November 26, 2019Assignee: OMRON CorporationInventors: Masayuki Koizumi, Minami Wazumi, Chunmei Huang, Kenji Homma
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Publication number: 20180331684Abstract: A proximity sensor includes a transmission circuit that supplies a current to each of detection coils, a reception circuit that detects voltages generated at both ends of the coils or currents flowing in the coils due to the supply of the current for each of the coils, a control unit that senses the presence or position of a detection object using a detection result of the reception circuit, and an output unit that outputs a sensing result of the control unit. The control unit extracts a first component caused by a mounting fitting for mounting the proximity sensor on a support member and a second component caused by the detection object from the detection result of the reception circuit. The control unit compensates the second component using the first component. The control unit senses the presence or position of the detection object on the basis of the compensated second component.Type: ApplicationFiled: February 8, 2018Publication date: November 15, 2018Applicant: OMRON CorporationInventors: Masayuki KOIZUMI, Minami WAZUMI, Yusuke NAKAYAMA
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Publication number: 20180267192Abstract: A proximity sensor includes a transmission circuit that periodically supplies an excitation current in a pulse form to a detection coil for generating a magnetic field, a reception circuit that detects voltages or currents generated at both ends of the detection coil by the periodic supply of the excitation current, and a controller that detects presence or a position of the detection body by utilizing a time series signal obtained by the detection. The controller acquires a factor that influences the detection of the detection body in a first period of the time series signal. The controller compensates a signal in a second period of the time series signal by the factor. The controller detects the presence or the position of the detection body on the basis of a signal after the compensation.Type: ApplicationFiled: December 15, 2017Publication date: September 20, 2018Applicant: OMRON CorporationInventors: Minami WAZUMI, Masayuki KOIZUMI, Yusuke NAKAYAMA
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Publication number: 20180231398Abstract: A proximity sensor is provided with coils (11, 12) disposed in a pre-set positional relationship, a first distance calculation unit (31) and a second distance calculation unit (32) for calculating first distance information (d1) and second distance information (d2), respectively, from the coils (11, 12) to a detection object (W) on the basis of reception results (voltages V1, V2) of the coils (11, 12), and a position estimating unit (33) for estimating the position, such as distance and azimuth, of the detection object (W) on the basis of the first distance information (d1), the second distance information (d2), and the positional relationship of the coils (11, 12) .Type: ApplicationFiled: January 6, 2017Publication date: August 16, 2018Applicant: OMRON CorporationInventors: Masayuki KOIZUMI, Minami WAZUMI, Chunmei HUANG, Kenji HOMMA
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Patent number: 9362923Abstract: A delay circuit includes units each of which includes a first delay element having a first input node and a first output node, a second delay element having a second input node and a second output node, and a third delay element between the first and second delay elements. The first output node of a first unit of the units is connected to the first input node of a second unit of the units. The second input node of the first unit is connected to the second output node of the second unit. A signal on the first input node of the first delay element of the first unit is output from the second output node of the second delay element of the first unit through the third delay element of the second unit.Type: GrantFiled: March 10, 2015Date of Patent: June 7, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Mizogami, Masayuki Koizumi
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Publication number: 20160020774Abstract: A delay circuit includes units each of which includes a first delay element having a first input node and a first output node, a second delay element having a second input node and a second output node, and a third delay element between the first and second delay elements. The first output node of a first unit of the units is connected to the first input node of a second unit of the units. The second input node of the first unit is connected to the second output node of the second unit. A signal on the first input node of the first delay element of the first unit is output from the second output node of the second delay element of the first unit through the third delay element of the second unit.Type: ApplicationFiled: March 10, 2015Publication date: January 21, 2016Inventors: Takayuki Mizogami, Masayuki Koizumi
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Patent number: 8075034Abstract: A mounting structure for vehicle interior parts includes a console member and a shift panel having an upper panel and a lower panel. An insertion portion that is inserted into a dent formed in a rear end of the console member is provided on a rear end of the lower panel. Left and right outer side surfaces of the insertion portion of the lower panel and left and right inner side surfaces of the dent of the console member are configured to be engageable by inserting engaging projections into engaging recesses. The engaging recesses are provided so as to restrict movements of the engaging projections in their longitudinal direction, and to allow positional deviation of the engaging projections in the vertical direction.Type: GrantFiled: May 8, 2009Date of Patent: December 13, 2011Assignee: Toyota Shatai Kabushiki KaishaInventors: Masayuki Koizumi, Yusaku Furukawa
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Publication number: 20110006557Abstract: A mounting structure for vehicle interior parts includes a console member and a shift panel having an upper panel and a lower panel. An insertion portion that is inserted into a dent formed in a rear end of the console member is provided on a rear end of the lower panel. Left and right outer side surfaces of the insertion portion of the lower panel and left and right inner side surfaces of the dent of the console member are configured to be engageable by inserting engaging projections into engaging recesses. The engaging recesses are provided so as to restrict movements of the engaging projections in their longitudinal direction, and to allow positional deviation of the engaging projections in the vertical direction.Type: ApplicationFiled: May 8, 2009Publication date: January 13, 2011Applicant: TOYOTA SHATAI KABUSHIKI KAISHAInventors: Masayuki Koizumi, Yusaku Furukawa
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Patent number: 7468625Abstract: A semiconductor device including a plurality of current mirror circuits is disclosed. The current mirror circuits having reference input terminals and output terminals respectively. Each of the reference input terminals is provided with a current having a different current value. Each of the output terminals of the current mirror circuits are connected to a current output terminal. The output currents of the current mirror circuits are controlled by a control circuit.Type: GrantFiled: July 6, 2007Date of Patent: December 23, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Masayuki Koizumi, Hiroyuki Shibayama
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Patent number: 7391263Abstract: An operational amplifier 1 is provided with differential amplifier 2, replica amplifier 3, voltage-current converting circuit 4, reference current source 5 and comparator 6. Differential amplifier 2 includes P-channel MOS transistors PT1 and PT2, gate and drain electrodes of which are connected to each other to function as loads, and N-channel MOS transistors NT1, NT2 and NT3. Replica amplifier 3 is identical in structure to differential amplifier and also includes P-channel MOS transistors PT11 and PT12, gate and drain electrodes of which are connected to each other to function as loads, and N-channel MOS transistors NT11, NT12 and NT13. Voltage-current converting circuit 4 converts output voltages of replica amplifier 3 to current Irep. Comparator 6 compares output current Irep of voltage-current converting circuit 4 with reference current Iref of reference current source 5 and supplies compared current Ico to differential amplifier 2 to keep bias current Ibias of differential amplifier 2 constant.Type: GrantFiled: August 29, 2006Date of Patent: June 24, 2008Assignee: Kabushiki Kaisha ToshibaInventors: Masayuki Koizumi, Hiroyuki Shibayama
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Publication number: 20080012630Abstract: A semiconductor device including a plurality of current mirror circuits is disclosed. The current mirror circuits having reference input terminals and output terminals respectively. Each of the reference input terminals is provided with a current having a different current value. Each of the output terminals of the current mirror circuits are connected to a current output terminal. The output currents of the current mirror circuits are controlled by a control circuit.Type: ApplicationFiled: July 6, 2007Publication date: January 17, 2008Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masayuki KOIZUMI, Hiroyuki Shibayama
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Patent number: 7248100Abstract: A semiconductor device including a plurality of current mirror circuits is disclosed. The current mirror circuits having reference input terminals and output terminals respectively. Each of the reference input terminals is provided with a current having a different current value. Each of the output terminals of the current mirror circuits are connected to a current output terminal. The output currents of the current mirror circuits are controlled by a control circuit.Type: GrantFiled: July 1, 2005Date of Patent: July 24, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Masayuki Koizumi, Hiroyuki Shibayama