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).

  • Publication number: 20240142600
    Abstract: 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: Application
    Filed: March 8, 2022
    Publication date: May 2, 2024
    Inventors: Mitsuaki KUBO, Keiki MATSUURA, Masayuki KOIZUMI, Daiki SHICHIJO, Ayaka IWADE, Yutaro OKUNO
  • Publication number: 20240118142
    Abstract: 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: Application
    Filed: October 3, 2023
    Publication date: April 11, 2024
    Applicant: Asahi Kasei Microdevices Corporation
    Inventors: Yoshihiko KOIZUMI, Masayuki SATO
  • Patent number: 11708114
    Abstract: 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: Grant
    Filed: November 22, 2021
    Date of Patent: July 25, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihiro Yanaka, Shinji Kurachi, Masayuki Koizumi
  • Patent number: 11623125
    Abstract: The present disclosure provides a rotation estimation device including an acquisition section and a rotation estimation section.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: April 11, 2023
    Assignee: OMRON CORPORATION
    Inventors: Yuki Sasaki, Masamune Nakayama, Kyohei Asai, Satoshi Yase, Masayuki Koizumi
  • Publication number: 20220161644
    Abstract: 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: Application
    Filed: November 22, 2021
    Publication date: May 26, 2022
    Inventors: Akihiro Yanaka, Shinji Kurachi, Masayuki Koizumi
  • Publication number: 20210283485
    Abstract: The present disclosure provides a rotation estimation device including an acquisition section and a rotation estimation section.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Applicant: OMRON Corporation
    Inventors: Yuki Sasaki, Masamune Nakayama, Kyohei Asai, Satoshi Yase, Masayuki Koizumi
  • Patent number: 10707868
    Abstract: 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: Grant
    Filed: February 8, 2018
    Date of Patent: July 7, 2020
    Assignee: OMRON Corporation
    Inventors: Masayuki Koizumi, Minami Wazumi, Yusuke Nakayama
  • Patent number: 10527747
    Abstract: 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: Grant
    Filed: December 15, 2017
    Date of Patent: January 7, 2020
    Assignee: OMRON Corporation
    Inventors: Minami Wazumi, Masayuki Koizumi, Yusuke Nakayama
  • Patent number: 10488226
    Abstract: 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: Grant
    Filed: January 6, 2017
    Date of Patent: November 26, 2019
    Assignee: OMRON Corporation
    Inventors: Masayuki Koizumi, Minami Wazumi, Chunmei Huang, Kenji Homma
  • Publication number: 20180331684
    Abstract: 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: Application
    Filed: February 8, 2018
    Publication date: November 15, 2018
    Applicant: OMRON Corporation
    Inventors: Masayuki KOIZUMI, Minami WAZUMI, Yusuke NAKAYAMA
  • Publication number: 20180267192
    Abstract: 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: Application
    Filed: December 15, 2017
    Publication date: September 20, 2018
    Applicant: OMRON Corporation
    Inventors: Minami WAZUMI, Masayuki KOIZUMI, Yusuke NAKAYAMA
  • Publication number: 20180231398
    Abstract: 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: Application
    Filed: January 6, 2017
    Publication date: August 16, 2018
    Applicant: OMRON Corporation
    Inventors: Masayuki KOIZUMI, Minami WAZUMI, Chunmei HUANG, Kenji HOMMA
  • Patent number: 9362923
    Abstract: 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: Grant
    Filed: March 10, 2015
    Date of Patent: June 7, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Mizogami, Masayuki Koizumi
  • Publication number: 20160020774
    Abstract: 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: Application
    Filed: March 10, 2015
    Publication date: January 21, 2016
    Inventors: Takayuki Mizogami, Masayuki Koizumi
  • Patent number: 8075034
    Abstract: 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: Grant
    Filed: May 8, 2009
    Date of Patent: December 13, 2011
    Assignee: Toyota Shatai Kabushiki Kaisha
    Inventors: Masayuki Koizumi, Yusaku Furukawa
  • Publication number: 20110006557
    Abstract: 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: Application
    Filed: May 8, 2009
    Publication date: January 13, 2011
    Applicant: TOYOTA SHATAI KABUSHIKI KAISHA
    Inventors: Masayuki Koizumi, Yusaku Furukawa
  • Patent number: 7468625
    Abstract: 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: Grant
    Filed: July 6, 2007
    Date of Patent: December 23, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Koizumi, Hiroyuki Shibayama
  • Patent number: 7391263
    Abstract: 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: Grant
    Filed: August 29, 2006
    Date of Patent: June 24, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Koizumi, Hiroyuki Shibayama
  • Publication number: 20080012630
    Abstract: 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: Application
    Filed: July 6, 2007
    Publication date: January 17, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masayuki KOIZUMI, Hiroyuki Shibayama
  • Patent number: 7248100
    Abstract: 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: Grant
    Filed: July 1, 2005
    Date of Patent: July 24, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masayuki Koizumi, Hiroyuki Shibayama