Patents by Inventor Kazuo Asanuma

Kazuo Asanuma 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: 11290056
    Abstract: A solar power generation fault diagnosis device includes one or more processors configured to perform the following: receiving signals indicating an electrical quantity output from a solar cell to acquire quantity information indicating the electrical quantity output from the solar cell; calculating a first quantity value relating to the electrical quantity based on the quantity information; implementing a low-pass filter unit so as to output a second quantity value from the first quantity value; determining a state of the solar cell based on a result of comparison between the first quantity value and the second quantity value; and outputting the determined state of the solar cell.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 29, 2022
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Kazuo Asanuma, Norio Kurisu
  • Publication number: 20200382056
    Abstract: A solar power generation fault diagnosis device includes one or more processors configured to perform the following: receiving signals indicating an electrical quantity output from a solar cell to acquire quantity information indicating the electrical quantity output from the solar cell; calculating a first quantity value relating to the electrical quantity based on the quantity information; implementing a low-pass filter unit so as to output a second quantity value from the first quantity value; determining a state of the solar cell based on a result of comparison between the first quantity value and the second quantity value; and outputting the determined state of the solar cell.
    Type: Application
    Filed: August 19, 2020
    Publication date: December 3, 2020
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Kazuo ASANUMA, Norio KURISU
  • Patent number: 10686692
    Abstract: A wireless connection device for establishing a connection path between a parent device and a child device through one more relay devices includes one or more processors that determines whether the signal strength between the child device and each of the relay devices is greater than or equal to a first threshold value; when the signal strength is determined to be greater than or equal to the first threshold value, selects, from among a plurality of possible communication paths for which the signal strength has been determined to be greater than or equal to the first threshold value, a communication path that minimizes a hop count; and, when the signal strength is less than the first threshold value for all of the plurality of possible communication paths, selects, from among the plurality of possible communication paths, a communication path that has the largest signal strength.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 16, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Akifumi Kosugi, Kazuo Asanuma
  • Patent number: 10577048
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of the pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a backward rotation amount of the pedal while the rotation direction of the pedal is backwards, the backward rotation amount being obtained by the pedal rotation sensor.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: March 3, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
  • Patent number: 10574506
    Abstract: A communication configuration device installed in at least one of a plurality of communication terminals that are designed to be connected in a manner to establish a wireless network includes one or more processors receiving, through a network interface, setting information providing communication settings for all of the plurality of communication terminals; evaluating the second setting information; and if the setting information indicates that one or more of the settings of the communication terminal in which the communication configuration device is installed need to be changed, causing a corresponding setting in the original setting information stored in a storage unit to be replaced with an updated setting indicated in the setting information so that the updated setting is applied to said communication terminal.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: February 25, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yoji Imai, Kazuo Asanuma
  • Patent number: 10432115
    Abstract: A motor driving control apparatus in embodiments includes: a first signal generator to generate a first signal representing any one rotation angle section of plural rotation angle sections according to a sensor signal that changes every predetermined rotation angle of a rotor; a measurement unit to measure a period of each of the rotation angle sections; a prediction unit to predict a period of a next rotation section based on one or plural measured rotation angle sections; a second signal generator to generate a second signal representing a relative rotation angle of the rotor in the next rotation angle section for each period obtained by dividing the predicted period by a predetermined number; and a third signal generator to generate a third signal corresponding to a rotation angle of the rotor based on the first and second signals.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: October 1, 2019
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Hiromi Hagiwara, Kazuo Asanuma, Hirokazu Shirakawa
  • Patent number: 10040508
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative 5 braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: August 7, 2018
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
  • Publication number: 20180198701
    Abstract: A wireless connection device for establishing a connection path between a parent device and a child device through one more relay devices includes one or more processors that determines whether the signal strength between the child device and each of the relay devices is greater than or equal to a first threshold value; when the signal strength is determined to be greater than or equal to the first threshold value, selects, from among a plurality of possible communication paths for which the signal strength has been determined to be greater than or equal to the first threshold value, a communication path that minimizes a hop count; and, when the signal strength is less than the first threshold value for all of the plurality of possible communication paths, selects, from among the plurality of possible communication paths, a communication path that has the largest signal strength.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 12, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Akifumi KOSUGI, Kazuo ASANUMA
  • Publication number: 20180198674
    Abstract: A communication configuration device installed in at least one of a plurality of communication terminals that are designed to be connected in a manner to establish a wireless network includes one or more processors receiving, through a network interface, setting information providing communication settings for all of the plurality of communication terminals; evaluating the second setting information; and if the setting information indicates that one or more of the settings of the communication terminal in which the communication configuration device is installed need to be changed, causing a corresponding setting in the original setting information stored in a storage unit to be replaced with an updated setting indicated in the setting information so that the updated setting is applied to said communication terminal.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 12, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yoji IMAI, Kazuo ASANUMA
  • Publication number: 20180194430
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of the pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a backward rotation amount of the pedal while the rotation direction of the pedal is backwards, the backward rotation amount being obtained by the pedal rotation sensor.
    Type: Application
    Filed: January 26, 2018
    Publication date: July 12, 2018
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
  • Patent number: 9902462
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while the rotation direction of the pedal is backwards, the rotation amount being obtained by the pedal rotation sensor.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: February 27, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu
  • Patent number: 9896153
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: February 20, 2018
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
  • Publication number: 20170247079
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative 5 braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Application
    Filed: May 16, 2017
    Publication date: August 31, 2017
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Yasuo Hosaka, Kazuo Asanuma, Hiromi Hagiwara, Satoru Shimizu
  • Publication number: 20170110994
    Abstract: A motor driving control apparatus in embodiments includes: a first signal generator to generate a first signal representing any one rotation angle section of plural rotation angle sections according to a sensor signal that changes every predetermined rotation angle of a rotor; a measurement unit to measure a period of each of the rotation angle sections; a prediction unit to predict a period of a next rotation section based on one or plural measured rotation angle sections; a second signal generator to generate a second signal representing a relative rotation angle of the rotor in the next rotation angle section for each period obtained by dividing the predicted period by a predetermined number; and a third signal generator to generate a third signal corresponding to a rotation angle of the rotor based on the first and second signals.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato TANAKA, Hiromi Hagiwara, Kazuo Asanuma, Hirokazu Shirakawa
  • Publication number: 20170110998
    Abstract: A driving control apparatus includes a controller that generates a first signal for controlling turn-on to a brushless motor, a PWM signal generator that generates a PWM signal for driving the brushless motor by continuous turn-on with a sine wave, and an inverter that supplies a driving voltage generated based on the first signal and the PWM signal for the brushless motor. The controller generates the first signal so that a turn-on section represented by the first signal continuously increases from a reference turn-on angle according to increase of a rotation speed, and the turn-on section having an angle corresponding to the continuous turn-on is kept when the rotation speed is equal to or greater than a predetermined speed. The PWM signal generator outputs the PWM signal in a range including a rotation speed at which the turn-on section begins to increase from the reference turn-on angle and more.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicants: MICROSPACE CORPORATIOIN, TAIYO YUDEN CO., LTD.
    Inventors: Masato TANAKA, Hiromi Hagiwara, Kazuo Asanuma, Hirokazu Shirakawa
  • Patent number: 9573569
    Abstract: A regenerative brake device for a vehicle includes a manual brake configured to apply a brake to a wheel of the vehicle by a manual operation of a brake lever; a motor configured to be coupled to a wheel of the vehicle, the motor being driven by a power from a battery, and also alternatively acting as a regenerative brake that charges the battery with an electromotive force of the motor; a brake sensor that detects a manual brake application point at which the manual brake is actuated from an operation amount of the brake lever; and a power control unit that performs regenerative power control for charging the battery with the electromotive force of the motor based on an output signal from the brake sensor so that the regenerative brake is generated in accordance with the operation amount of the brake lever.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 21, 2017
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Toshiyuki Kagawa
  • Patent number: 9428172
    Abstract: An appropriate motor control in accordance with a pedal operation of a driver is to be achieved. A motor drive control device according to the present invention is a motor drive control device for an electric power-assisted vehicle that has one-way clutches respectively provided for a motor drive system and for a pedal drive system. The motor drive control device according to the present invention includes: a first calculating part that calculates a pedal rotation conversion speed that is converted from a pedal rotation; and a second calculating part that calculates a second target torque for a motor based on the pedal rotation conversion speed, during a period in which a first target torque derived from a pedal torque is not detected.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: August 30, 2016
    Assignees: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato Tanaka, Kazuo Asanuma, Yasuo Hosaka, Kuniaki Kawagoe
  • Publication number: 20160202710
    Abstract: A motor driving control apparatus in embodiments has a controller configured to control driving of a motor, and an instruction unit configured to cause the controller to suppress the driving of the motor when detecting a phenomenon that a state in which fluctuation of a pedal input torque is within a predetermined range continues for a period for the predetermined number of pedal rotations or more. The suppression of the driving of the motor may include stop of the driving of the motor, and the pedal input torque may be a value corrected by an offset value. Furthermore, the motor driving control apparatus may be used by an electrically assisted vehicle.
    Type: Application
    Filed: August 28, 2014
    Publication date: July 14, 2016
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Kazuo ASANUMA, Taichi YANAOKA
  • Publication number: 20160121963
    Abstract: This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 5, 2016
    Applicants: MICROSPACE CORPORATION, TAIYO YUDEN CO., LTD.
    Inventors: Masato TANAKA, Yasuo HOSAKA, Kazuo ASANUMA, Hiromi HAGIWARA, Satoru SHIMIZU
  • Publication number: 20160107719
    Abstract: In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while the rotation direction of the pedal is backwards, the rotation amount being obtained by the pedal rotation sensor.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 21, 2016
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo Hosaka, Kazuo Asanuma, Kuniaki Kawagoe, Satoru Shimizu