Patents by Inventor Keijiro NISHI

Keijiro NISHI 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: 10807671
    Abstract: An electrical bicycle operating system includes a first switch unit that includes a first switch group configured to be mounted to a bicycle on a first side of a central longitudinal axis of the bicycle, the first switch group including a first switch and a second switch having a first position and a second position in the first switch group. Also included is a second switch unit that includes a second switch group configured to be mounted to the bicycle on an opposite side from the first side, the second switch group including a third switch having a same position as the first position. A control unit is configured to generate a first signal where the first switch unit is actuated, a second signal where the second switch unit is actuated, and a third signal where the first switch unit and the second switch unit are actuated concurrently.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 20, 2020
    Assignee: Shimano Inc.
    Inventors: Makoto Usui, Keijiro Nishi
  • Patent number: 10780940
    Abstract: A human-powered vehicle operating device including a base member, a first operating member, a second operating member, a first electrical switch and a second electrical switch. The first operating member includes a first operating surface and configured to pivot about a first axis with respect to the base member. The second operating member includes a second operating surface and configured to pivot about a second axis with respect to the base member. The first electrical switch is provided between the base member and the first operating member. The second electrical switch is provided between the base member and the second operating member. The first operating member and the second operating member are arranged next to each other in a first direction and configured to pivot independent from each other.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 22, 2020
    Assignee: Shimano Inc.
    Inventors: Nobuyuki Kakinoki, Kentaro Kosaka, Keijiro Nishi, Ryo Yamazaki
  • Publication number: 20190315423
    Abstract: An electrical bicycle operating system includes a first switch unit that includes a first switch group configured to be mounted to a bicycle on a first side of a central longitudinal axis of the bicycle, the first switch group including a first switch and a second switch having a first position and a second position in the first switch group. Also included is a second switch unit that includes a second switch group configured to be mounted to the bicycle on an opposite side from the first side, the second switch group including a third switch having a same position as the first position. A control unit is configured to generate a first signal where the first switch unit is actuated, a second signal where the second switch unit is actuated, and a third signal where the first switch unit and the second switch unit are actuated concurrently.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 17, 2019
    Inventors: Makoto Usui, Keijiro Nishi
  • Publication number: 20190217916
    Abstract: A human-powered vehicle operating device including a base member, a first operating member, a second operating member, a first electrical switch and a second electrical switch. The first operating member includes a first operating surface and configured to pivot about a first axis with respect to the base member. The second operating member includes a second operating surface and configured to pivot about a second axis with respect to the base member. The first electrical switch is provided between the base member and the first operating member. The second electrical switch is provided between the base member and the second operating member. The first operating member and the second operating member are arranged next to each other in a first direction and configured to pivot independent from each other.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 18, 2019
    Inventors: Nobuyuki KAKINOKI, Kentaro KOSAKA, Keijiro NISHI, Ryo YAMAZAKI
  • 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: 9815522
    Abstract: A bicycle shifting apparatus comprises a shifting controller. The shifting controller is configured to control one of a front shifting device and a rear shifting device to change one of a front shift position and a rear shift position in response to a user input. The shifting controller is configured to control the other of the front shifting device and the rear shifting device to change the other of the front shift position and the rear shift position with a delay time period in conjunction with the one of the front shifting device and the rear shifting device in response to the user input. The shifting controller is configured to change the delay time period based on at least one of a gear ratio, the rear shift position, and a current rotational speed of a bicycle crank.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: November 14, 2017
    Assignee: SHIMANO INC.
    Inventors: Hiroshi Tachibana, Kazuhiro Fujii, Yuta Mizutani, Keijiro Nishi, Yuki Kataoka, Ryuichiro Takamoto, Ayumi Kato
  • Patent number: 9809276
    Abstract: An electric bicycle derailleur control system is basically provided with a derailleur, a detecting device and a controller. The derailleur includes a chain guide and an electrical actuator. The chain guide is configured to displace a bicycle chain. The electrical actuator is operatively coupled to the chain guide to displace the chain guide. The detecting device is configured to detect information related to a reaction force of the bicycle chain. The controller is configured to control the electrical actuator in accordance with detected information.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: November 7, 2017
    Assignee: Shimano Inc.
    Inventors: Takafumi Katsura, Keijiro Nishi, Yuta Mizutani, Hiroshi Tachibana
  • Patent number: 9776685
    Abstract: A front derailleur basically includes a fixed member, a movable member, a driven link and a first link. The fixing member is configured to be fixed to a bicycle frame. The movable member is movably supported with respect to the fixed member. The driven link is operatively coupled to the movable member. The first link movably connects the movable member to the fixed member, and is adjustably coupled to the driven link in a fixed position by a fixing structure to establish a fixed rest position of the movable member with respect to the fixed member.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: October 3, 2017
    Assignee: Shimano Inc.
    Inventors: Hiroshi Tachibana, Yuuta Mizutani, Keijiro Nishi, Kazuya Kuwayama, Atsuhiro Emura, Kenkichi Inoue
  • Publication number: 20170247082
    Abstract: An electric bicycle derailleur control system is basically provided with a derailleur, a detecting device and a controller. The derailleur includes a chain guide and an electrical actuator. The chain guide is configured to displace a bicycle chain. The electrical actuator is operatively coupled to the chain guide to displace the chain guide. The detecting device is configured to detect information related to a reaction force of the bicycle chain. The controller is configured to control the electrical actuator in accordance with detected information.
    Type: Application
    Filed: February 29, 2016
    Publication date: August 31, 2017
    Inventors: Takafumi KATSURA, Keijiro NISHI, Yuta MIZUTANI, Hiroshi TACHIBANA
  • Publication number: 20170233036
    Abstract: A front derailleur basically includes a fixed member, a movable member, a driven link and a first link. The fixing member is configured to be fixed to a bicycle frame. The movable member is movably supported with respect to the fixed member. The driven link is operatively coupled to the movable member. The first link movably connects the movable member to the fixed member, and is adjustably coupled to the driven link in a fixed position by a fixing structure to establish a fixed rest position of the movable member with respect to the fixed member.
    Type: Application
    Filed: January 14, 2014
    Publication date: August 17, 2017
    Applicant: Shimano Inc.
    Inventors: Hiroshi TACHIBANA, Yuuta MIZUTANI, Keijiro NISHI, Kazuya KUWAYAMA, Atsuhiro EMURA, Kenkichi INOUE
  • Publication number: 20170166281
    Abstract: An electrical bicycle derailleur includes a base member and a movable member movably arranged between a retracted position and an extended position. A linkage operatively couples the movable member to the base member. The linkage includes a first link member and a second link member. The first link member is disposed closer to the base member than the second link member. A motor unit is operatively coupled to the first and second link members to rotate the first and second link members. A linkage housing is configured to support the first and second link members and the motor unit. A first diameter of the first link member is different from a second diameter of the second link member and/or a first tooth number of the first link member is different from a second tooth number of the second link member.
    Type: Application
    Filed: December 14, 2015
    Publication date: June 15, 2017
    Inventors: Hiroshi TACHIBANA, Takeshi UEDA, Yuta MIZUTANI, Keijiro NISHI, Takahiro TABATA
  • Publication number: 20170158285
    Abstract: A bicycle shifting apparatus comprises a shifting controller. The shifting controller is configured to control one of a front shifting device and a rear shifting device to change one of a front shift position and a rear shift position in response to a user input. The shifting controller is configured to control the other of the front shifting device and the rear shifting device to change the other of the front shift position and the rear shift position with a delay time period in conjunction with the one of the front shifting device and the rear shifting device in response to the user input. The shifting controller is configured to change the delay time period based on at least one of a gear ratio, the rear shift position, and a current rotational speed of a bicycle crank.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 8, 2017
    Applicant: SHIMANO INC.
    Inventors: Hiroshi TACHIBANA, Kazuhiro FUJII, Yuta MIZUTANI, Keijiro NISHI, Yuki KATAOKA, Ryuichiro TAKAMOTO, Ayumi KATO
  • Patent number: 9656723
    Abstract: An electrical bicycle derailleur includes a base member and a movable member movably arranged between a retracted position and an extended position. A linkage operatively couples the movable member to the base member. The linkage includes a first link member and a second link member. The first link member is disposed closer to the base member than the second link member. A motor unit is operatively coupled to the first and second link members to rotate the first and second link members. A linkage housing is configured to support the first and second link members and the motor unit. A first diameter of the first link member is different from a second diameter of the second link member and/or a first tooth number of the first link member is different from a second tooth number of the second link member.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: May 23, 2017
    Assignee: Shimano Inc.
    Inventors: Hiroshi Tachibana, Takeshi Ueda, Yuta Mizutani, Keijiro Nishi, Takahiro Tabata
  • Publication number: 20170101162
    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: Application
    Filed: February 9, 2016
    Publication date: April 13, 2017
    Inventors: Hiroshi TACHIBANA, Kazuhiro FUJII, Yuta MIZUTANI, Keijiro NISHI, Yuki KATAOKA, Atsushi KOMATSU, Yuta KUROKAWA, Shingo SAKURAI
  • Publication number: 20170101155
    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: Application
    Filed: October 9, 2015
    Publication date: April 13, 2017
    Inventors: Hiroshi TACHIBANA, Kazuhiro FUJII, Yuta MIZUTANI, Keijiro NISHI, Yuki KATAOKA, Atsushi KOMATSU, Yuta KUROKAWA, Shingo SAKURAI
  • Publication number: 20140148287
    Abstract: A front derailleur basically includes a fixed member, a movable member, a driven link and a first link. The fixing member is configured to be fixed to a bicycle frame. The movable member is movably supported with respect to the fixed member. The driven link is operatively coupled to the movable member. The first link movably connects the movable member to the fixed member, and is adjustably coupled to the driven link in a fixed position by a fixing structure to establish a fixed rest position of the movable member with respect to the fixed member.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 29, 2014
    Applicant: Shimano Inc.
    Inventors: Hiroshi TACHIBANA, Yuuta MIZUTANI, Keijiro NISHI, Kazuya KUWAYAMA, Atsuhiro EMURA, Kenkichi INOUE