Patents by Inventor Takuma Sakai
Takuma Sakai 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).
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Publication number: 20220033030Abstract: A handlebar assembly is basically provided with a handlebar and a support. The handlebar has an outer circumferential surface and an arrangement area disposed inside the outer circumferential surface. The arrangement area is configured to arrange an electric switch unit at least partially inside the outer circumferential surface. The support is at least partially disposed in the arrangement area and supporting the electric switch unit to receive an operating force applied to operate the electric switch unit.Type: ApplicationFiled: August 3, 2020Publication date: February 3, 2022Inventors: Hiroshi MATSUMOTO, Ayako TAKAHASHI, Kodai HIROTA, Takuma SAKAI, Takafumi NISHINO
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Publication number: 20210339818Abstract: An operating device for a human-powered vehicle comprises a base member and an operating member. The base member extends in a longitudinal direction. The base member includes a first end portion and a second end portion. The first end portion has a coupling surface configured to be coupled to a handlebar. The second end portion includes a pommel portion and an end surface extending from the pommel portion. The end surface is arranged on a reverse side of the coupling surface in the longitudinal direction. The operating member is movably coupled to the base member about a pivot axis between a rest position and an operated position. The operating member extends from a proximal end portion to a distal end portion in an extending direction. The indicator is configured to indicate information relating to the human-powered vehicle. The indicator is provided to the end surface.Type: ApplicationFiled: May 1, 2020Publication date: November 4, 2021Applicant: SHIMANO INC.Inventors: Yasuyuki KOMADA, Shun KAKEHASHI, Takuma SAKAI
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Publication number: 20210339819Abstract: An operating device for a human-powered vehicle comprises a base member and an operating member. The base member extends in a longitudinal direction. The base member includes a first end portion and a second end portion. The second end portion includes a cover portion provided on a reverse side of the first end portion in the longitudinal direction. The operating member includes an outer surface configured to face away from the first end portion in a rest state where the operating member is in a rest position. The cover portion is configured to be arranged on a pivotal movement track of the operating member so as to at least partly overlap with the outer surface of the operating member in the rest state as viewed in the longitudinal direction.Type: ApplicationFiled: May 1, 2020Publication date: November 4, 2021Applicant: SHIMANO INC.Inventors: Yuichiro HIDAKA, Takuma SAKAI, Yasuyuki KOMADA, Shun KAKEHASHI
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Publication number: 20210139105Abstract: An electric device for a human-powered vehicle comprises an accommodating structure. The accommodating structure includes a main body, an attachment member, and a power-supply accommodating part. The attachment member is configured to be attached to the main body. The power-supply accommodating part is provided at least one of the main body and the attachment member so as to accommodate a power supply, the power-supply accommodating part including an insertion opening and a first inner surface. The first inner surface extends along a reference plane and having a first outline defining a first area as viewed in a direction perpendicular to the reference plane. The insertion opening extends along an insertion opening plane non-parallel to the reference plane. The insertion opening has an opening outline defining an insertion opening area as viewed in a direction perpendicular to the insertion opening plane. The first area is larger than the insertion opening area.Type: ApplicationFiled: November 13, 2019Publication date: May 13, 2021Applicant: SHIMANO INC.Inventors: Yasuyuki KOMADA, Takuma SAKAI, Yuichiro HIDAKA, Shun KAKEHASHI, Kazuma MORI
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Publication number: 20210144453Abstract: An operating device for a human-powered vehicle comprises a base member and circuitry. The base member includes a power-supply accommodating part configured to accommodate a power supply extending along a reference plane. The circuitry is provided to the base member to extend along an additional reference plane intersecting with the reference plane.Type: ApplicationFiled: November 13, 2019Publication date: May 13, 2021Applicant: SHIMANO INC.Inventors: Yasuyuki KOMADA, Takuma SAKAI, Yuichiro HIDAKA, Shun KAKEHASHI, Kazuma MORI
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Publication number: 20210139102Abstract: An operating device for a human-powered vehicle comprises a base member and an operating member. The base member extends in a longitudinal direction. The base member includes a first end portion, a second end portion, and an accommodating structure. The first end portion is configured to be coupled to a handlebar. The second end portion is opposite to the first end portion in the longitudinal direction. The accommodating structure is provided to the second end portion. The operating member is pivotally coupled to the base member about a pivot axis. The accommodating structure is disposed at a location which is the farthest from the first end portion in the second end portion along the longitudinal direction as viewed along the pivot axis. The accommodating structure includes an accommodating part configured to accommodate at least one of a power supply and circuitry.Type: ApplicationFiled: November 13, 2019Publication date: May 13, 2021Applicant: SHIMANO INC.Inventors: Yasuyuki KOMADA, Takaya MASUDA, Takuma SAKAI, Yuichiro HIDAKA, Shun KAKEHASHI
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Patent number: 10926831Abstract: A bicycle disc brake caliper comprises a caliper body. The caliper body includes a first body portion, a second body portion, a mounting surface, a first receiving hole, a first cylinder bore, and a second cylinder bore. The mounting surface includes a first surface and a second surface spaced apart from the first surface. The first receiving hole is provided on the first surface. The first receiving hole is configured to be threadedly engaged with a first fastener to mount the bicycle disc brake caliper to a bicycle body. The first receiving hole includes a first threaded hole having a first center axis. The first cylinder bore is provided on the first body portion. The first cylinder bore has a first cylinder center axis non-parallel to the first center axis. The second cylinder bore is provided on the first body portion.Type: GrantFiled: May 13, 2020Date of Patent: February 23, 2021Assignee: SHIMANO INC.Inventors: Akira Kondou, Takuma Sakai, Hideki Ikemoto
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Publication number: 20210031881Abstract: An operating system for a human-powered vehicle comprises a first operating device, a second operating device, a first user interface, and a second user interface. The first operating device comprises a first base member and a first operating member. The second operating device comprises a second base member and a second operating member. The first user interface is configured to receive a first user input and mounted to the first operating device. The second user interface is configured to receive a second user input and mounted to the second operating device. At least one of the first user interface and the second user interface is configured to be operated to control an assist driving unit configured to assist a human power.Type: ApplicationFiled: July 29, 2019Publication date: February 4, 2021Applicant: SHIMANO INC.Inventors: Toshio TETSUKA, Taihei NISHIHARA, Eiji MISHIMA, Takuma SAKAI, Takafumi NISHINO, Takehiko NAKAJIMA
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Patent number: 10882581Abstract: An operating device includes a base member, an operating member, a first connecting part, a second connecting part and an additional component. The base member is mounted on a human-powered vehicle; an operating member provided to the base member. The first connecting part is provided to one of the base member and the operating member in a manner connectable to a power transmitting medium. The second connecting part is provided to the base member in a manner connectable to the power transmitting medium. The additional component is provided to at least one of the base member and the operating member.Type: GrantFiled: March 15, 2019Date of Patent: January 5, 2021Assignee: Shimano Inc.Inventors: Hiroshi Matsumoto, Takuma Sakai, Kazuma Mori, Masahiro Nakakura
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Patent number: 10882584Abstract: A hydraulic operating device comprises a base member, an operating member, and a piston. The base member includes a first end portion, a second end portion, a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The second end portion is opposite to the first end portion. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member at the first end portion about a pivot axis. The first hose-attachment hole and the second hose-attachment hole are provided closer to the pivot axis than the second end portion.Type: GrantFiled: August 27, 2018Date of Patent: January 5, 2021Assignee: SHIMANO INC.Inventors: Kazuma Mori, Takuma Sakai, Masahiro Nakakura
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Patent number: 10870463Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The mounting member includes a mount opening through which the handlebar is to extend. The mount opening has a mount center axis. The base member includes a support portion configured to contact an outer circumferential surface of the handlebar without clamping the handlebar in a mounting state where the handlebar extends through the mount opening of the mounting member.Type: GrantFiled: August 27, 2018Date of Patent: December 22, 2020Assignee: SHIMANO INC.Inventors: Kazuma Mori, Takuma Sakai, Masahiro Nakakura
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Patent number: 10829180Abstract: A hydraulic operating device for a small vehicle including a bicycle comprises a base member, a mounting structure, an operating member, and a piston. The base member includes a cylinder bore having a cylinder axis. The mounting structure defines a mounting axis linearly extending along the handlebar in a mounting state where the base member is mounted on a handlebar with the mounting structure. The operating member is pivotally coupled to the base member about a first pivot axis between a rest position and an operated position. The cylinder axis is non-perpendicular to the mounting axis as viewed along the first pivot axis in the mounting state. The piston is movably provided in the cylinder bore. The piston is coupled to the operating member to be pulled in response to a pivotal movement of the operating member from the rest position to the operated position.Type: GrantFiled: August 28, 2017Date of Patent: November 10, 2020Assignee: SHIMANO INC.Inventors: Takuma Sakai, Yasuyuki Komada, Mototsugu Nakai, Masahiro Nakakura, Takafumi Nishino
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Patent number: 10800480Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member about a pivot axis. The mounting member is configured to couple the base member to a handlebar. The mounting member includes a mount opening through which the handlebar is to extend. The first hose-attachment hole, the second hose-attachment hole, and the mount opening are provided on a reference plane perpendicular to the pivot axis.Type: GrantFiled: September 14, 2018Date of Patent: October 13, 2020Assignee: SHIMANO INC.Inventors: Yusuke Nishikawa, Takuma Sakai, Nobuyoshi Fujii, Yoshimitsu Miki, Masahiro Nakakura
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Publication number: 20200269948Abstract: A bicycle disc brake caliper comprises a caliper body. The caliper body includes a first body portion, a second body portion, a mounting surface, a first receiving hole, a first cylinder bore, and a second cylinder bore. The mounting surface includes a first surface and a second surface spaced apart from the first surface. The first receiving hole is provided on the first surface. The first receiving hole is configured to be threadedly engaged with a first fastener to mount the bicycle disc brake caliper to a bicycle body. The first receiving hole includes a first threaded hole having a first center axis. The first cylinder bore is provided on the first body portion. The first cylinder bore has a first cylinder center axis non-parallel to the first center axis. The second cylinder bore is provided on the first body portion.Type: ApplicationFiled: May 13, 2020Publication date: August 27, 2020Applicant: SHIMANO INC.Inventors: Akira KONDOU, Takuma SAKAI, Hideki IKEMOTO
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Patent number: 10689063Abstract: A bicycle disc brake caliper comprises a caliper body. The caliper body includes a slot in which a brake pad is arranged. The caliper body includes a first body portion, a second body portion, a mounting surface, a first receiving hole, a cylinder bore, and a second cylinder bore. The second body portion is coupled to the first body portion so as to provide a slot therebetween. The mounting surface is configured to face a pipe portion of a bicycle body in a mounted state where the bicycle disc brake caliper is mounted to the bicycle body. The first receiving hole is provided on the mounting surface. The first receiving hole is configured to be threadedly engaged with a fastener to mount the bicycle disc brake caliper to the bicycle body. The first cylinder bore is provided on the first body portion. The second cylinder bore is provided on the first body portion.Type: GrantFiled: December 11, 2018Date of Patent: June 23, 2020Assignee: SHIMANO INC.Inventors: Akira Kondou, Takuma Sakai, Hideki Ikemoto
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Patent number: 10604208Abstract: A bicycle suspension tube comprises a tubular body, a wheel attachment part, and a caliper attachment part. The wheel attachment part is provided on the tubular body. The wheel attachment part includes an attachment hole having a rotational center axis. The caliper attachment part is provided on the tubular body. The caliper attachment part includes a first through hole having a first longitudinal axis non-parallel to the rotational center axis.Type: GrantFiled: March 15, 2017Date of Patent: March 31, 2020Assignee: SHIMANO INC.Inventors: Akira Kondou, Takuma Sakai, Hideki Ikemoto
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Publication number: 20200086944Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member about a pivot axis. The mounting member is configured to couple the base member to a handlebar. The mounting member includes a mount opening through which the handlebar is to extend. The first hose-attachment hole, the second hose-attachment hole, and the mount opening are provided on a reference plane perpendicular to the pivot axis.Type: ApplicationFiled: September 14, 2018Publication date: March 19, 2020Applicant: SHIMANO INC.Inventors: Yusuke NISHIKAWA, Takuma SAKAI, Nobuyoshi FUJII, Yoshimitsu MIKI, Masahiro NAKAKURA
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Publication number: 20200062337Abstract: A hydraulic operating device comprises a base member, an operating member, and a piston. The base member includes a first end portion, a second end portion, a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The second end portion is opposite to the first end portion. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The operating member is pivotally coupled to the base member at the first end portion about a pivot axis. The first hose-attachment hole and the second hose-attachment hole are provided closer to the pivot axis than the second end portion.Type: ApplicationFiled: August 27, 2018Publication date: February 27, 2020Applicant: SHIMANO INC.Inventors: Kazuma MORI, Takuma SAKAI, Masahiro NAKAKURA
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Publication number: 20200062336Abstract: A hydraulic operating device comprises a base member, an operating member, a piston, and a mounting member. The base member includes a cylinder bore, a first hose-attachment hole, and a second hose-attachment hole. The first hose-attachment hole is configured to be in fluid communication with the cylinder bore. The second hose-attachment hole is configured to be in fluid communication with the cylinder bore. The mounting member includes a mount opening through which the handlebar is to extend. The mount opening has a mount center axis. The base member includes a support portion configured to contact an outer circumferential surface of the handlebar without clamping the handlebar in a mounting state where the handlebar extends through the mount opening of the mounting member.Type: ApplicationFiled: August 27, 2018Publication date: February 27, 2020Applicant: SHIMANO INC.Inventors: Kazuma MORI, Takuma SAKAI, Masahiro NAKAKURA
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Patent number: 10494053Abstract: An operating device is basically provided with a base member, an operating member and a handlebar fixing structure. The base member includes a support abutment having a contact surface that is arranged to contact an outer surface of a handlebar while the operating device is in an installed state. The contact surface defines an abutment circle about an abutment axis. The operating member is movably coupled to the base member. The handlebar fixing structure is provided on the base member. The handlebar fixing structure has a fixing surface. The fixing surface defines a fixing circle about a fixing axis offset from the abutment axis.Type: GrantFiled: January 21, 2018Date of Patent: December 3, 2019Assignee: Shimano Inc.Inventors: Yasuyuki Komada, Kohei Obuchi, Takuma Sakai