Patents by Inventor Hayato SHIMAZU

Hayato SHIMAZU 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: 20240076009
    Abstract: A control device for a human-powered vehicle includes an electronic controller. The human-powered vehicle includes a motor that applies a propulsion force to the human-powered vehicle and a transmission that shifts a transmission ratio of the human-powered vehicle between a plurality of shift stages. The electronic controller is configured to control the motor. The electronic controller is configured to decrease an upper limit value of an output of the motor in an up-shift operation. The electronic controller is configured to decrease the upper limit value in a down-shift operation. The electronic controller is configured to control the motor so that the upper limit value in the up-shift operation performed between two predetermined ones of the shift stages that differ in the transmission ratio by one stage differs from the upper limit value in the down-shift operation performed between the two predetermined ones of the shift stages.
    Type: Application
    Filed: August 8, 2023
    Publication date: March 7, 2024
    Inventors: Satoshi SHAHANA, Toru TAKAYANAGI, Takeshi UEDA, Atsuhiro EMURA, Hayato SHIMAZU
  • Patent number: 11840313
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, an electric actuator configured to actuate the derailleur, and a motor configured to drive the transmission body. A control device has an electronic controller configured to control the motor and drive the transmission body upon determining the derailleur has been actuated with the electric actuator to change the transmission ratio and a predetermined condition related to pedaling is satisfied. The electronic controller is configured to control the electric actuator so as not to change the transmission ratio until a first condition related to shifting is satisfied in a case where the derailleur is actuated.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: December 12, 2023
    Assignee: Shimano Inc.
    Inventors: Satoshi Shahana, Hayato Shimazu, Mitsuhiko Kawasaki, Atsuhiro Emura
  • Patent number: 11840312
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, a motor configured to drive the transmission body and an electric actuator configured to operate the derailleur. A control device has an electronic controller configured to control electric actuator and the motor. The electronic controller is configured to control the electric actuator and drive the transmission body with the motor so that the transmission ratio is changed in a predetermined shifting range in upon determining the derailleur has been actuated to change the transmission ratio and a predetermined condition related to pedaling is satisfied.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: December 12, 2023
    Assignee: Shimano Inc.
    Inventors: Satoshi Shahana, Hayato Shimazu, Mitsuhiko Kawasaki, Atsuhiro Emura
  • Patent number: 11807331
    Abstract: A human-powered vehicle control device includes an electronic controller configured to control a transmission that changes a transmission ratio of a rotational speed of a wheel of a human-powered vehicle to a rotational speed of a crank of the human-powered vehicle. The electronic controller is configured to control the transmission to change the transmission ratio in accordance with a comparison of a parameter related to at least one of a traveling environment and a traveling state of the human-powered vehicle with a predetermined determination value. The electronic controller is configured to change the predetermined determination value in accordance with a change in the parameter during a single rotation of the crank.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: November 7, 2023
    Assignee: Shimano Inc.
    Inventor: Hayato Shimazu
  • Publication number: 20230286608
    Abstract: A rear hub thru-axle is provided for a human powered vehicle. The rear hub thru-axle is basically provided with a first axle portion and a second axle portion. The first axle portion has a first hollow interior passage defining a first interior dimension. The second axle portion has a second hollow interior passage defining a second interior dimension. The first axle portion is connected to the second axle portion in an axial direction with respect to the rear thru-axle. The first interior dimension of the first hollow interior passage is larger than the second interior dimension of the second hollow interior passage.
    Type: Application
    Filed: February 22, 2023
    Publication date: September 14, 2023
    Inventors: Akinobu SUGIMOTO, Hiroshi FUJITA, Yuki SAKAGAWA, Ryota YAMAGUCHI, Hayato SHIMAZU
  • Publication number: 20230242199
    Abstract: A hub for a human-powered vehicle is provided that comprises a hub axle, a hub body, an electric power generator, and a communication device. The hub body is rotatably mounted on the hub axle about a rotational axis. The electric power generator is provided between the hub axle and the hub body. The electric power generator is configured to generate electric power by relative rotation between hub axle and the hub body. The communication device is located at least partly outside of the hub body. The communication device includes a wireless communicator configured to wirelessly communicate with an additional wireless communicator.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 3, 2023
    Inventors: Hayato SHIMAZU, Takashi KOMEMUSHI, Kei ASAO, Kiichiro NAGATA
  • Publication number: 20230227121
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, and a motor configured to drive the transmission body. A control device has an electronic controller configured to control the motor and drive the transmission body with the motor so as to change at least one of a rotational angle of the motor and an output torque of the motor in correspondence with a state of the human-powered vehicle upon determining the derailleur has been actuated to change the transmission ratio and a predetermined condition related to pedaling is satisfied.
    Type: Application
    Filed: March 7, 2023
    Publication date: July 20, 2023
    Inventors: Satoshi SHAHANA, Hayato SHIMAZU, Mitsuhiko KAWASAKI, Atsuhiro EMURA
  • Publication number: 20230202614
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, a motor configured to drive the transmission body and an electric actuator configured to operate the derailleur. A control device has an electronic controller configured to control electric actuator and the motor. The electronic controller is configured to control the electric actuator and drive the transmission body with the motor so that the transmission ratio is changed in a predetermined shifting range in upon determining the derailleur has been actuated to change the transmission ratio and a predetermined condition related to pedaling is satisfied.
    Type: Application
    Filed: March 7, 2023
    Publication date: June 29, 2023
    Inventors: Satoshi SHAHANA, Hayato SHIMAZU, Mitsuhiko KAWASAKI, Atsuhiro EMURA
  • Publication number: 20230202615
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, an electric actuator configured to actuate the derailleur, and a motor configured to drive the transmission body. A control device has an electronic controller configured to control the motor and drive the transmission body upon determining the derailleur has been actuated with the electric actuator to change the transmission ratio and a predetermined condition related to pedaling is satisfied. The electronic controller is configured to control the electric actuator so as not to change the transmission ratio until a first condition related to shifting is satisfied in a case where the derailleur is actuated.
    Type: Application
    Filed: March 7, 2023
    Publication date: June 29, 2023
    Inventors: Satoshi SHAHANA, Hayato SHIMAZU, Mitsuhiko KAWASAKI, Atsuhiro EMURA
  • Patent number: 11623713
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, and a motor configured to drive the transmission body. A control device has an electronic controller configured to control the motor and drive the transmission body with the motor upon determining the derailleur has been actuated to change the transmission ratio and a predetermined condition related to pedaling is satisfied, and control the motor to increase a rotational speed of the motor as a difference of a first rotational speed, which is calculated in correspondence with a rotational speed of the wheel and the transmission ratio, and a predetermined rotational speed or a rotational speed in a predetermined range increases.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: April 11, 2023
    Assignee: Shimano Inc.
    Inventors: Satoshi Shahana, Hayato Shimazu, Mitsuhiko Kawasaki, Atsuhiro Emura
  • Patent number: 11526699
    Abstract: Provided are a detecting device, a detecting method, a generating method, and a computer-readable storage medium that allow the user to readily obtain information on the degree of wear for a worn portion in the human-powered vehicle. A detecting device includes a control unit that detects a worn portion in a human-powered vehicle as a target worn portion from a first image including at least a part of the human-powered vehicle and outputs wear information related to a degree of wear for the target worn portion.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: December 13, 2022
    Assignee: Shimano Inc.
    Inventors: Hayato Shimazu, Yasuhiro Nakashima, Noriko Masuta
  • Patent number: 11521117
    Abstract: A control data creation device is provided that has an acquisition part, a creation part and an evaluation part. The acquisition part acquires input information concerning traveling of a human-powered vehicle. The creation part creates by a learning algorithm a learning model that outputs output information concerning control of a component of the human-powered vehicle based on input information acquired by the acquisition part. The evaluation part evaluates output information output from the learning model. The creation part updates the learning model based on training data including an evaluation by the evaluation part, input information corresponding to an output of the output information and the output information.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: December 6, 2022
    Assignee: Shimano Inc.
    Inventors: Hayato Shimazu, Hitoshi Takayama, Satoshi Shahana, Takehiko Nakajima
  • Publication number: 20220204126
    Abstract: A human-powered vehicle control device includes an electronic controller configured to control a motor to drive a transmission body with the motor and operate the transmission body with a derailleur to perform a shifting action that changes the transmission ratio in a case where a crank axle is stopped. The electronic controller includes a first control state in which the shifting action is performed and a second control state in which a driving force of the motor during the shifting action is reduced compared to the first control state. The electronic controller shifts the control state to the second control state in a case where a rider is riding the human-powered vehicle and the human-powered vehicle is stopped. The electronic controller shifts the control state from the second control state to the first control state in a case where a predetermined condition is satisfied.
    Type: Application
    Filed: November 12, 2021
    Publication date: June 30, 2022
    Inventors: Satoshi SHAHANA, Mitsuhiko KAWASAKI, Toru TAKAYANAGI, Hayato SHIMAZU, Hironori YAMAZAKI
  • Patent number: 11312442
    Abstract: A creation device is provided that has at least one processor operatively coupled to non-transitory computer readable storage to execute operations that includes an acquisition part and a creation part. The acquisition part acquires input information concerning traveling of a human-powered vehicle. The creation part uses a learning algorithm to create a learning model that outputs output information concerning control of the components of the human-powered vehicle based on the input information.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 26, 2022
    Assignee: Shimano Inc.
    Inventors: Hayato Shimazu, Hitoshi Takayama, Satoshi Shahana, Takafumi Nishino, Takehiko Nakajima
  • Publication number: 20210237822
    Abstract: A human-powered vehicle control device includes an electronic controller configured to control a transmission that changes a transmission ratio of a rotational speed of a wheel of a human-powered vehicle to a rotational speed of a crank of the human-powered vehicle. The electronic controller is configured to control the transmission to change the transmission ratio in accordance with a comparison of a parameter related to at least one of a traveling environment and a traveling state of the human-powered vehicle with a predetermined determination value. The electronic controller is configured to change the predetermined determination value in accordance with a change in the parameter during a single rotation of the crank.
    Type: Application
    Filed: January 26, 2021
    Publication date: August 5, 2021
    Inventor: Hayato Shimazu
  • Publication number: 20210188394
    Abstract: A human-powered vehicle includes a crank axle, a first rotational body, a wheel, a second rotational body, a transmission body that transmits a driving force between the first rotational body and the second rotational body, a derailleur configured to operate the transmission body to change a transmission ratio, and a motor configured to drive the transmission body. A control device has an electronic controller configured to control the motor and drive the transmission body with the motor upon determining the derailleur has been actuated to change the transmission ratio and a predetermined condition related to pedaling is satisfied, and control the motor to increase a rotational speed of the motor as a difference of a first rotational speed, which is calculated in correspondence with a rotational speed of the wheel and the transmission ratio, and a predetermined rotational speed or a rotational speed in a predetermined range increases.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 24, 2021
    Inventors: Satoshi SHAHANA, Hayato SHIMAZU, Mitsuhiko KAWASAKI, Atsuhiro EMURA
  • Patent number: 10967935
    Abstract: A creation device includes an acquisition part that acquires input information concerning traveling of a human-powered vehicle; and a creation part that creates different learning models that each produce output information concerning control of a component of the human-powered vehicle based on input information acquired by the acquisition part.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 6, 2021
    Assignee: Shimano Inc.
    Inventors: Hayato Shimazu, Hitoshi Takayama, Satoshi Shahana, Takafumi Nishino, Takehiko Nakajima
  • Publication number: 20200394407
    Abstract: Provided are a detecting device, a detecting method, a generating method, and a computer-readable storage medium that allow the user to readily obtain information on an object related to a human-powered vehicle. The detecting device includes a control unit that detects an object related to a human-powered vehicle as a target object from a first image including at least a part of the human-powered vehicle, and outputs related information related to the target object.
    Type: Application
    Filed: June 12, 2020
    Publication date: December 17, 2020
    Inventors: Hayato Shimazu, Kozo Chikai, Katsuo Nakamura, Kenji Tagawa, Shou Tanaka, Yasuhiro Nakashima, Noriko Masuta, Yasuho Hommoto
  • Publication number: 20200394467
    Abstract: Provided are a detecting device, a detecting method, a generating method, and a computer-readable storage medium that allow the user to readily obtain information on the degree of wear for a worn portion in the human-powered vehicle. A detecting device includes a control unit that detects a worn portion in a human-powered vehicle as a target worn portion from a first image including at least a part of the human-powered vehicle and outputs wear information related to a degree of wear for the target worn portion.
    Type: Application
    Filed: June 12, 2020
    Publication date: December 17, 2020
    Inventors: Hayato Shimazu, Yasuhiro Nakashima, Noriko Masuta
  • Publication number: 20200010148
    Abstract: A creation device is provided that has at least one processor operatively coupled to non-transitory computer readable storage to execute operations that includes an acquisition part and a creation part. The acquisition part acquires input information concerning traveling of a human-powered vehicle. The creation part uses a learning algorithm to create a learning model that outputs output information concerning control of the components of the human-powered vehicle based on the input information.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 9, 2020
    Inventors: Hayato SHIMAZU, Hitoshi TAKAYAMA, Satoshi SHAHANA, Takafumi NISHINO, Takehiko NAKAJIMA