Patents by Inventor Kouji Sakaguchi

Kouji Sakaguchi 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).

  • Patent number: 11996794
    Abstract: A motor control device controls a drive of a motor having a coil, and includes a drive circuit and a control unit. The drive circuit has a plurality of switching elements, and switches the energization of the coil. The control unit includes an energization control part and a current limit part. The energization control part accelerates and then decelerates the motor, and controls energization of the coil so that a rotation position of the motor stops at a target rotation position. The current limit part limits the current during a deceleration control.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: May 28, 2024
    Assignee: DENSO CORPORATION
    Inventors: Jun Yamada, Seiji Nakayama, Kouji Sakaguchi, Haruka Miyano
  • Patent number: 11981728
    Abstract: Disclosed is an isolated monoclonal antibody comprising a heavy chain and a light chain, wherein the heavy chain comprises CDR1, CDR2 and CDR3 consisting of amino acid sequences set forth in SEQ ID NOs: 1, 2 and 3, respectively, and the light chain comprises CDR1, CDR2 and CDR3 consisting of amino acid sequences set forth in SEQ ID NOs: 4, 5 and 6, respectively.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: May 14, 2024
    Assignee: SYSMEX CORPORATION
    Inventors: Kouji Sakaguchi, Naoya Okitsu, Minori Yamada, Naoko Kitamura, Tetsuji Yamaguchi
  • Patent number: 11837987
    Abstract: A motor control device controls a drive of a motor in a motor drive system including the motor and a detent mechanism. The detent mechanism has a detent member that rotates integrally with an output shaft to which the rotation of the motor is transmitted, and an engaging member that moves a valley portion by a rotation of the motor and positions the output shaft by stopping within a positioning range. The motor control device includes a positioning determination unit and an energization control unit. The positioning determination unit determines whether or not the engaging member is stopped within the positioning range based on control parameter other than a detection value of a motor rotation angle sensor that detects a motor rotation angle. When the energization control unit determines that the engaging member is stopped within the positioning range, the energization control unit turns off the energization of the motor.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: December 5, 2023
    Assignee: DENSO CORPORATION
    Inventors: Daisuke Yamamoto, Seiji Nakayama, Jun Yamada, Kouji Sakaguchi
  • Patent number: 11828362
    Abstract: A shift range control device switches a shift range by controlling driving of a motor. The shift range control device calculate an actual rotation position of the motor. The shift range control device sets a target range according to a required range and a target rotation position according to the target range. The shift range control device controls the driving of the motor such that the actual rotation position reaches the target rotation position.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: November 28, 2023
    Assignee: DENSO CORPORATION
    Inventors: Haruka Miyano, Kouji Sakaguchi, Jun Yamada, Seiji Nakayama
  • Patent number: 11512775
    Abstract: A shift range control device includes: multiple controllers that communicate with each other and control driving of a motor. The multiple controllers share control information, and include a first controller and a second controller. When the control information of the first controller is different from the control information of the second controller, one of the first controller and the second controller is set as a continuation controller, and a different one of the first controller and the second controller is set as a stop controller. The stop controller stops the drive control. The continuation controller performs the drive control of the motor.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: November 29, 2022
    Assignee: DENSO CORPORATION
    Inventor: Kouji Sakaguchi
  • Publication number: 20220360207
    Abstract: A motor control device controls a drive of a motor having a motor winding includes an angle calculation unit, a drive control unit, and an abnormality diagnosis unit. The angle calculation unit acquires a detected value from a rotation angle sensor that detects a rotation angle of the motor and calculate the rotation angle of the motor. The drive control unit controls the drive of the motor based on the rotation angle of the motor. When an abnormality in the rotation angle of the motor is detected while the motor is being driven, the abnormality diagnosis unit performs an abnormality diagnosis of an energized system while maintaining an energized state.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 10, 2022
    Inventor: Kouji SAKAGUCHI
  • Publication number: 20220294371
    Abstract: A motor control device controls a drive of a motor in a motor drive system including the motor and a detent mechanism. The detent mechanism has a detent member that rotates integrally with an output shaft to which the rotation of the motor is transmitted, and an engaging member that moves a valley portion by a rotation of the motor and positions the output shaft by stopping within a positioning range. The motor control device includes a positioning determination unit and an energization control unit. The positioning determination unit determines whether or not the engaging member is stopped within the positioning range based on control parameter other than a detection value of a motor rotation angle sensor that detects a motor rotation angle. When the energization control unit determines that the engaging member is stopped within the positioning range, the energization control unit turns off the energization of the motor.
    Type: Application
    Filed: May 31, 2022
    Publication date: September 15, 2022
    Inventors: Daisuke YAMAMOTO, Seiji NAKAYAMA, Jun YAMADA, Kouji SAKAGUCHI
  • Publication number: 20220267427
    Abstract: Disclosed is an isolated monoclonal antibody comprising a heavy chain and a light chain, wherein the heavy chain comprises CDR1, CDR2 and CDR3 consisting of amino acid sequences set forth in SEQ ID NOs: 1, 2 and 3, respectively, and the light chain comprises CDR1, CDR2 and CDR3 consisting of amino acid sequences set forth in SEQ ID NOs: 4, 5 and 6, respectively.
    Type: Application
    Filed: February 18, 2022
    Publication date: August 25, 2022
    Applicant: SYSMEX CORPORATION
    Inventors: Kouji Sakaguchi, Naoya Okitsu, Minori Yamada, Naoko Kitamura, Tetsuji Yamaguchi
  • Publication number: 20220221050
    Abstract: A shift range control device switches a shift range by controlling driving of a motor. The shift range control device calculate an actual rotation position of the motor. The shift range control device sets a target range according to a required range and a target rotation position according to the target range. The shift range control device controls the driving of the motor such that the actual rotation position reaches the target rotation position.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 14, 2022
    Inventors: Haruka MIYANO, Kouji SAKAGUCHI, Jun YAMADA, Seiji NAKAYAMA
  • Publication number: 20220190750
    Abstract: A motor control device controls the drive of a motor including a motor winding. The motor control device is provided with an energization control unit and a standstill determination unit. The energization control unit controls the energization of the motor winding in accordance with a detection value of a rotational position sensor that detects a rotational position of the motor. The standstill determination unit determines a standstill of the motor. When a standstill of the motor is detected, the energization control unit controls energization in a change pattern that is an energization pattern different from a preset regular pattern in accordance with the detection value of the rotational position sensor.
    Type: Application
    Filed: March 3, 2022
    Publication date: June 16, 2022
    Inventors: Kouji SAKAGUCHI, Seiji NAKAYAMA, Jun YAMADA
  • Publication number: 20220154820
    Abstract: A shift range control device controls a shift range switching system including an actuator, an output shaft, and a shift range switching mechanism. The shift range control device includes a target setting unit, a drive control unit, and an abnormality monitoring unit. The target setting unit sets a target shift range. The drive control unit controls the drive of the actuator so that the engagement member fits into the target valley portion, which is the valley portion corresponding to the target shift range. The abnormality monitoring unit monitors an abnormality. When a stagnation abnormality is determined in which the engagement member does not reach the target valley portion and stagnates, the drive control unit controls the drive of the actuator so that the engagement member fits into the valley portion on the side where the engagement member is returned from a stagnant position.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 19, 2022
    Inventors: Haruka Miyano, Kouji Sakaguchi, Jun Yamada, Seiji Nakayama
  • Publication number: 20220060138
    Abstract: A motor control device controls a drive of a motor having a coil, and includes a drive circuit and a control unit. The drive circuit has a plurality of switching elements, and switches the energization of the coil. The control unit includes an energization control part and a current limit part. The energization control part accelerates and then decelerates the motor, and controls energization of the coil so that a rotation position of the motor stops at a target rotation position. The current limit part limits the current during a deceleration control.
    Type: Application
    Filed: November 4, 2021
    Publication date: February 24, 2022
    Inventors: Jun YAMADA, Seiji NAKAYAMA, Kouji SAKAGUCHI, Haruka MIYANO
  • Patent number: 11236823
    Abstract: A shift range control device for a shift range switching mechanism that is rotatably coupled with a shift actuator and includes a rotation member having multiple recesses and a locking portion rotationally positioning the rotation member by being locked to one of the multiple recesses, controls a motor of the shift actuator to switch a shift range. The shift range control device includes: an angle acquisition unit that acquires a rotation angle of an output shaft of the shift actuator; a valley position learning unit that performs valley position learning for learning, as a valley position, the rotation angle of the output shaft; and a temperature acquisition unit that acquires an environmental temperature.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: February 1, 2022
    Assignee: DENSO CORPORATION
    Inventors: Haruka Miyano, Kouji Sakaguchi, Jun Yamada, Seiji Nakayama
  • Patent number: 11125324
    Abstract: A shift range control device includes an angle detector, a valley position learner, and a validity determiner. The angle detector detects a rotation angle of an output shaft of a shift actuator. The valley position learner learns the rotation angle of the output shaft when a locker is positioned at a valley bottom of a recess as a valley position based on a detection angle of the angle detector. The validity determiner determines validity of a learning value of the valley position learner.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: September 21, 2021
    Assignee: DENSO CORPORATION
    Inventors: Kouji Sakaguchi, Seiji Nakayama, Jun Yamada, Haruka Miyano
  • Publication number: 20200386307
    Abstract: A shift range control device for a shift range switching mechanism that is rotatably coupled with a shift actuator and includes a rotation member having multiple recesses and a locking portion rotationally positioning the rotation member by being locked to one of the multiple recesses, controls a motor of the shift actuator to switch a shift range. The shift range control device includes: an angle acquisition unit that acquires a rotation angle of an output shaft of the shift actuator; a valley position learning unit that performs valley position learning for learning, as a valley position, the rotation angle of the output shaft; and a temperature acquisition unit that acquires an environmental temperature.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 10, 2020
    Inventors: Haruka MIYANO, Kouji SAKAGUCHI, Jun YAMADA, Seiji NAKAYAMA
  • Publication number: 20200370644
    Abstract: A shift range control device includes: multiple controllers that communicate with each other and control driving of a motor. The multiple controllers share control information, and include a first controller and a second controller. When the control information of the first controller is different from the control information of the second controller, one of the first controller and the second controller is set as a continuation controller, and a different one of the first controller and the second controller is set as a stop controller. The stop controller stops the drive control. The continuation controller performs the drive control of the motor.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 26, 2020
    Inventor: Kouji SAKAGUCHI
  • Publication number: 20200370643
    Abstract: A shift range control device that switches a shift range by controlling driving of a motor includes a plurality of control units and a plurality of motor drivers. The plurality of control units respectively have an energization control unit for controlling energization to the motor and an abnormality monitor unit for performing abnormality monitoring. The energization control unit turns off energization of the own system in a state of temporary abnormality before determining a decisive abnormality when abnormality affecting the other system is detected in the own system while driving the motor by the plurality of systems, and the abnormality monitor unit determines whether a state of abnormality is the temporary abnormality or the decisive abnormality after turning off energization of the own system.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 26, 2020
    Inventors: Kouji SAKAGUCHI, Seiji NAKAYAMA, Jun YAMADA, Haruka MIYANO
  • Patent number: 10830344
    Abstract: A shift range control device that switches a shift range by controlling driving of a motor includes a plurality of control units and a plurality of motor drivers. The plurality of control units respectively have an energization control unit for controlling energization to the motor and an abnormality monitor unit for performing abnormality monitoring. The energization control unit turns off energization of the own system in a state of temporary abnormality before determining a decisive abnormality when abnormality affecting the other system is detected in the own system while driving the motor by the plurality of systems, and the abnormality monitor unit determines whether a state of abnormality is the temporary abnormality or the decisive abnormality after turning off energization of the own system.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: November 10, 2020
    Assignee: DENSO CORPORATION
    Inventors: Kouji Sakaguchi, Seiji Nakayama, Jun Yamada, Haruka Miyano
  • Publication number: 20200325986
    Abstract: A shift range control device includes an angle detector, a valley position learner, and a validity determiner. The angle detector detects a rotation angle of an output shaft of a shift actuator. The valley position learner learns the rotation angle of the output shaft when a locker is positioned at a valley bottom of a recess as a valley position based on a detection angle of the angle detector. The validity determiner determines validity of a learning value of the valley position learner.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 15, 2020
    Inventors: Kouji SAKAGUCHI, Seiji NAKAYAMA, Jun YAMADA, Haruka MIYANO
  • Patent number: 8865424
    Abstract: The present invention relates to an anti-FDP monoclonal antibody selected from the first, second and third monoclonal antibodies having different reactivity towards FDP. The present invention also relates to a reagent and reagent kit for the measurement of FDP and a method for measurement of FDP using the anti-FDP monoclonal antibodies.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 21, 2014
    Assignee: Sysmex Corporation
    Inventors: Naoya Okitsu, Katsushi Kobayashi, Noriaki Nakajima, Masumi Murakami, Kouji Sakaguchi, Ayumi Asaeda, Mayumi Sugimoto