Patents by Inventor Kazuhiro Fujii

Kazuhiro Fujii 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: 20240087787
    Abstract: Disclosed herein is a coil component that includes a coil part embedded in a magnetic element body. The coil part has a structure in which plural interlayer insulating films and plural conductor layers having a coil pattern are alternately stacked. At least one of the conductor layers has a clearance area having no coil pattern and extending radially outward from a center axis of the coil part. The magnetic element body includes a first magnetic resin layer provided in an inner diameter area of the coil part, a second magnetic resin layer provided in a radially outside area of the coil part, and a fifth magnetic resin layer filled in the clearance area and contacting the first and second magnetic resin layers.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 14, 2024
    Inventors: Yuki HASHIMOTO, Toshiyuki ABE, Takeshi OKUMURA, Tomonaga NISHIKAWA, Naoaki FUJII, Kazuhiro YOSHIKAWA
  • Publication number: 20230034449
    Abstract: An operating device of a human-powered vehicle, the device including: an operation member; a base that is configured such that the operation member is provided to the base and at least a part of the base is embedded in a vehicle body of the human-powered vehicle; at least one interface; and a controller that is provided to the base and is electrically connected to the at least one interface, the controller being configured to cause the at least one interface to output a control command to a control-target in accordance with an operation of the operation member, wherein the controller is configured to be capable of changing at least one of the control-target and the control command.
    Type: Application
    Filed: July 7, 2022
    Publication date: February 2, 2023
    Inventors: Kazuhiro FUJII, Hiroki KAMADA, Kazuyoshi NAKAMURA, Yuuya YONEDA
  • Publication number: 20230025889
    Abstract: A component is configured to be mounted on a human-powered vehicle. The component includes a communication device. The communication device is configured to receive predetermined information sent from a transmission device of the human-powered vehicle. The predetermined information includes at least some of first information that the transmission device receives from an operating device mounted to the human-powered vehicle.
    Type: Application
    Filed: October 4, 2022
    Publication date: January 26, 2023
    Inventors: Kazuhiro FUJII, Yoshiyuki KASAI, Akihiro NOZAKI, Tomohiro TAKIMOTO
  • Publication number: 20220063757
    Abstract: A human-powered vehicle control device includes an electronic controller that is configured to control an electric component of the human-powered vehicle in at least one control state selected from multiple control states that at least partially differ from each other. A number of the at least one control state is changeable. A human-powered vehicle control system includes the human-powered vehicle control device. Also, a method is carried out to set a control state of the human-powered vehicle control device.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: Jumpei NAKAMURA, Kenta KAWAKAMI, Toshio TETSUKA, Nobuyuki KAKINOKI, Taihei NISHIHARA, Kazuhiro FUJII, Hiroaki TAKESHITA
  • Publication number: 20220001955
    Abstract: A communication system includes a first communication device, a second communication device and a third communication device. The first communication device is configured to be connected to an operating device mounted on a human-powered vehicle. The second communication device is configured to be connected to a transmission device of the human-powered vehicle. The third communication device is configured to be connected to a component that is mounted on the human-powered vehicle and that differs from the operating device and the transmission device. The second communication device is configured to receive first information that is sent from the first communication device in response to operation of the operating device. The third communication device of the component is configured to receive second information that includes at least some of the first information sent from the second communication device.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 6, 2022
    Inventors: Kazuhiro FUJII, Yoshiyuki KASAI, Akihiro NOZAKI, Tomohiro TAKIMOTO
  • Patent number: 11091226
    Abstract: A bicycle controller includes an electronic control unit that controls a transmission device. The transmission device is configured to change a ratio of a rotational speed of a wheel of a bicycle to a rotational speed of a crank of the bicycle, and a motor. The motor transmits torque to an upstream side of the transmission device in a transmission path of manual driving force that is input to the crank. The electronic control unit is configured to switch between a first mode that drives the motor in accordance with the manual driving force and a second mode that allows the motor to be driven to assist walking of the bicycle. The electronic control unit is configured to control a rotational speed of the motor in accordance with the ratio in the second mode.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: August 17, 2021
    Assignee: Shimano Inc.
    Inventors: Yasuhiro Tsuchizawa, Hiroshi Matsuda, Kazuhiro Fujii, Satoshi Shahana, Hiroyuki Miyoshi, Etsuyoshi Watarai
  • Patent number: 11059543
    Abstract: A bicycle drive unit includes a motor that assists propulsion of a bicycle and a wire operation device that operates a wire, which is connectable to a bicycle component.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: July 13, 2021
    Assignee: Shimano Inc.
    Inventors: Tadashi Ichida, Satoshi Shahana, Kazuhiro Fujii, Kazuhiro Takeda
  • Publication number: 20210031882
    Abstract: A bicycle controller includes an electronic control unit that controls a transmission device. The transmission device is configured to change a ratio of a rotational speed of a wheel of a bicycle to a rotational speed of a crank of the bicycle, and a motor. The motor transmits torque to an upstream side of the transmission device in a transmission path of manual driving force that is input to the crank. The electronic control unit is configured to switch between a first mode that drives the motor in accordance with the manual driving force and a second mode that allows the motor to be driven to assist walking of the bicycle. The electronic control unit is configured to control a rotational speed of the motor in accordance with the ratio in the second mode.
    Type: Application
    Filed: October 6, 2020
    Publication date: February 4, 2021
    Inventors: Yasuhiro TSUCHIZAWA, Hiroshi MATSUDA, Kazuhiro FUJII, Satoshi SHAHANA, Hiroyuki MIYOSHI, Etsuyoshi WATARAI
  • Patent number: 10836453
    Abstract: A bicycle controller includes an electronic control unit. The electronic control unit controls a transmission device that changes a ratio of a rotational speed of a wheel of a bicycle to a rotational speed of a crank of the bicycle, and a motor that transmits torque to an upstream side of the transmission device in a transmission path of a manual driving force that is input to the crank. The electronic control unit switches between a first mode that drives the motor in accordance with the manual driving force and a second mode that allows the motor to be driven to assist walking of the bicycle. The electronic control unit controls the transmission device to change the ratio upon detection of the electronic control unit switching between the first mode and the second mode or the electronic control unit being in the second mode.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: November 17, 2020
    Assignee: Shimano Inc.
    Inventors: Yasuhiro Tsuchizawa, Hiroshi Matsuda, Kazuhiro Fujii, Satoshi Shahana, Hiroyuki Miyoshi, Etsuyoshi Watarai
  • Patent number: 10717494
    Abstract: A bicycle magnetism generation device and a disc brake adapter are configured to allow a rotation state of a bicycle wheel to be detected in a suitable manner. The bicycle magnetism generation device includes a magnetism generator generating magnetism. In a state where the disc brake rotor is coupled to a hub of a bicycle, the bicycle magnetism generation device is at least partially arrangeable between the disc brake rotor and the hub.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 21, 2020
    Assignee: Shimano Inc.
    Inventors: Satoshi Shahana, Tadaharu Kurotobi, Kazuhiro Fujii, Kanako Kiyokawa
  • Patent number: 10597106
    Abstract: A bicycle display device is configured to show an image on a display that is appropriate to a bicycle component, which is communicable with the bicycle display device. The bicycle display device is configured to be mounted on a bicycle. The bicycle display device includes a communication unit, a display and an electronic controller. The communication unit is communicably connected to a bicycle component that is mounted on the bicycle and configured to be actuated in multiple actuation modes. The display is configured to show an image related to the actuation modes of the bicycle component, which is one of different types of bicycle components. The electronic controller changes the image shown on the display in accordance with the type of the bicycle component communicably connected to the communication unit.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 24, 2020
    Assignee: Shimano Inc.
    Inventors: Hiroaki Takeshita, Yuichiro Ishikawa, Takashi Komemushi, Kazuhiro Fujii, Satoshi Shahana, Hiroyuki Miyoshi
  • Patent number: 10421519
    Abstract: A bicycle controller includes an electronic control unit controlling output of a motor that assists in propelling of a bicycle based on a manual driving force input to the bicycle. The electronic control unit further configured to control the motor in any one of operation modes including first, second and another operation modes, which control the output of the motor based on the manual driving force. The other operation mode excludes the first and second operation modes. In the first operation mode, the upper limit of output torque of the motor is a first value. In the second operation mode, the upper limit of output torque of the motor is a second value, which is 1.5 times or more than the first value. In the other operation mode, the upper limit of the output torque of the motor is the first value or less, or the second value or greater.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: September 24, 2019
    Assignee: Shimano Inc.
    Inventors: Yasuhiro Tsuchizawa, Hiroshi Matsuda, Kazuhiro Fujii, Satoshi Shahana
  • Patent number: 10227106
    Abstract: A bicycle controller and bicycle drive device that improves the stability of the behavior of a bicycle. The bicycle controller includes an electronic control unit that reduces the output of a motor, which is configured to assist in propulsion of the bicycle, in accordance with an angular acceleration of a rotary body. The rotary body is included in a human power transmission path extending from an input for human power to a coupling portion coupled to a drive wheel.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: March 12, 2019
    Assignee: Shimano Inc.
    Inventors: Yasuhiro Tsuchizawa, Hiroshi Matsuda, Kazuhiro Fujii, Satoshi Shahana, Hiroyuki Miyoshi, Mitsuru Tauchi
  • Patent number: 10086907
    Abstract: A bicycle electrical component is basically provided with a wireless communication unit, a movable member, an electrical actuation unit and a support structure. The wireless communication unit includes a first housing and a wireless communication member that is contained within the first housing. The electrical actuation unit includes a second housing and an electrical actuator that is contained within the second housing. The electrical actuator is configured to actuate the movable member. The second housing is different from the first housing. The support structure detachably supports the wireless communication unit to the bicycle electrical component.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: October 2, 2018
    Assignee: Shimano Inc.
    Inventors: Hiroshi Tachibana, Kazuhiro Fujii, Yuta Mizutani, Keijiro Nishi, Yuki Kataoka, Atsushi Komatsu, Yuta Kurokawa, Shingo Sakurai
  • Patent number: 10065706
    Abstract: A bicycle component fixing structure includes at least one bracket including at least one connecting portion and at least one fixing portion. The connecting portion is connected to the bicycle component. The fixing portion extends from the connecting portion and is fixed with respect to an outer peripheral surface of a cylindrical portion having an open end. The fixing portion includes at least one inner surface that opposes an outer peripheral surface of the cylindrical portion, and at least one outer surface that faces in the opposite direction from the inner surface. The fixing portion is fixed to the outer peripheral surface of the cylindrical portion by a pressing force that acts on the outer surface. The bracket fixes the bicycle component to the open end of the cylindrical portion, in a state in which the fixing portion is fixed to the outer peripheral surface of the cylindrical portion.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: September 4, 2018
    Assignee: Shimano Inc.
    Inventors: Yoshinori Iino, Kazuhiro Fujii, Eiji Mishima
  • Publication number: 20180201339
    Abstract: A bicycle magnetism generation device and a disc brake adapter are configured to allow a rotation state of a bicycle wheel to be detected in a suitable manner. The bicycle magnetism generation device includes a magnetism generator generating magnetism. In a state where the disc brake rotor is coupled to a hub of a bicycle, the bicycle magnetism generation device is at least partially arrangeable between the disc brake rotor and the hub.
    Type: Application
    Filed: December 26, 2017
    Publication date: July 19, 2018
    Inventors: Satoshi SHAHANA, Tadaharu KUROTOBI, Kazuhiro FUJII, Kanako KIYOKAWA
  • Publication number: 20180178870
    Abstract: A bicycle display device is configured to show an image on a display that is appropriate to a bicycle component, which is communicable with the bicycle display device. The bicycle display device is configured to be mounted on a bicycle. The bicycle display device includes a communication unit, a display and an electronic controller. The communication unit is communicably connected to a bicycle component that is mounted on the bicycle and configured to be actuated in multiple actuation modes. The display is configured to show an image related to the actuation modes of the bicycle component, which is one of different types of bicycle components. The electronic controller changes the image shown on the display in accordance with the type of the bicycle component communicably connected to the communication unit.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 28, 2018
    Inventors: Hiroaki TAKESHITA, Yuichiro ISHIKAWA, Takashi KOMEMUSHI, Kazuhiro FUJII, Satoshi SHAHANA, Hiroyuki MIYOSHI
  • Publication number: 20180178883
    Abstract: A bicycle drive unit includes a motor that assists propulsion of a bicycle and a wire operation device that operates a wire, which is connectable to a bicycle component.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 28, 2018
    Inventors: Tadashi ICHIDA, Satoshi SHAHANA, Kazuhiro FUJII, Kazuhiro TAKEDA
  • Publication number: 20180118305
    Abstract: A bicycle controller includes an electronic control unit. The electronic control unit controls a transmission device that changes a ratio of a rotational speed of a wheel of a bicycle to a rotational speed of a crank of the bicycle, and a motor that transmits torque to an upstream side of the transmission device in a transmission path of a manual driving force that is input to the crank. The electronic control unit switches between a first mode that drives the motor in accordance with the manual driving force and a second mode that allows the motor to be driven to assist walking of the bicycle. The electronic control unit controls the transmission device to change the ratio upon detection of the electronic control unit switching between the first mode and the second mode or the electronic control unit being in the second mode.
    Type: Application
    Filed: October 18, 2017
    Publication date: May 3, 2018
    Inventors: Yasuhiro TSUCHIZAWA, Hiroshi MATSUDA, Kazuhiro FUJII, Satoshi SHAHANA, Hiroyuki MIYOSHI, Etsuyoshi WATARAI
  • Patent number: RE47492
    Abstract: A bicycle control device that includes a bracket configured to be mounted to a handlebar, a first lever pivotally mounted to the bracket and defining a first pivot axis, a second lever that includes a first user contact part pivotally mounted to the first lever that pivots about a second axis, and a first electrical switch mounted to one of the first lever and the second lever. The first electrical switch is operated in response to pivotal movement of the second lever about the second axis. The first pivot axis is positioned between the second pivot axis and the first user contact part.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: July 9, 2019
    Assignee: SHIMANO INC.
    Inventors: Kazuhiro Fujii, Akinobu Uno, Takuro Jinbu