Patents by Inventor Tatsuya Kawakami
Tatsuya Kawakami 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: 20070151394Abstract: A bicycle shift operating device is basically provided with a first operating member, a second operating member, a shift wire take-up element and a wire winding/release mechanism. The second operating member is operatively coupled to the first operating member to move with the first operating member during movement of the first operating member, and to move the first operating member during movement of the second operating member. The shift wire take-up element is rotated in a first rotational direction by the first operating member and in a second rotational direction that is opposite to the first rotational direction by the second operating member. The wire winding/release mechanism is operatively coupled to the shift wire take-up element and the first and second operating members to selectively hold the shift wire take-up element in one of a plurality of shift positions.Type: ApplicationFiled: January 19, 2007Publication date: July 5, 2007Applicant: Shimano Inc.Inventor: Tatsuya Kawakami
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Publication number: 20070137384Abstract: A shift operating device for a bicycle comprises a mounting member structured to be mounted to the bicycle, a cable coupling member coupled to the mounting member for moving a cable in a cable pulling direction and a cable releasing direction, a positioning unit that selectively maintains the cable coupling member in a plurality of operating positions, and an input member that moves in a first direction and in a second direction different from the first direction, and an action member rotatably coupled to the mounting member and separate from the input member. The action member rotates to transmit movement of the first operating member to the positioning unit such that the cable coupling member moves from an origin operating position toward a destination operating position when the first operating member moves in either of both the first direction and the second direction.Type: ApplicationFiled: August 18, 2006Publication date: June 21, 2007Applicant: SHIMANO, INC.Inventor: TATSUYA KAWAKAMI
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Publication number: 20070137386Abstract: A bicycle shift control mechanism that has an operating member, a wire take up member, a positioning ratchet and a position maintaining pawl. The operating member is movable between a rest position, a shift wind position and a shift releasing position. The positioning ratchet includes a plurality of winding teeth, a plurality of positioning teeth and a plurality of movement restricting teeth. The positioning teeth and the movement restricting teeth are non-concentrically arranged to form stair shaped arrangements. The position maintaining pawl selectively holds and releases the positioning ratchet upon movement of the operating member from the rest position.Type: ApplicationFiled: November 4, 2005Publication date: June 21, 2007Applicant: Shimano Inc.Inventor: Tatsuya Kawakami
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Publication number: 20070068316Abstract: a shift operating device for a bicycle comprises a mounting member structured to be mounted to the bicycle, a cable coupling member coupled to the mounting member for moving a cable in a cable pulling direction and a cable releasing direction, a positioning unit that selectively maintains the cable coupling member in a plurality of operating positions, a first operating member that moves in a first direction and in a second direction different from the first direction, and a transmission unit that transmits movement of the first operating member to the positioning unit such that the cable coupling member moves from an origin operating position toward a destination operating position when the first operating member moves in either of both the first direction and the second direction.Type: ApplicationFiled: August 4, 2006Publication date: March 29, 2007Applicant: SHIMANO, INC.Inventors: TATSUYA KAWAKAMI, ETSUYOSHI WATARAI, YOSHIMITSU MIKI, KENJI OSE
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Patent number: 7194928Abstract: A bicycle shift operating device is basically provided with a first operating member, a second operating member, a shift wire take-up element and a wire winding/release mechanism. The second operating member is operatively coupled to the first operating member to move with the first operating member during movement of the first operating member, and to move the first operating member during movement of the second operating member. The shift wire take-up element is rotated in a first rotational direction by the first operating member and in a second rotational direction that is opposite to the first rotational direction by the second operating member. The wire winding/release mechanism is operatively coupled to the shift wire take-up element and the first and second operating members to selectively hold the shift wire take-up element in one of a plurality of shift positions.Type: GrantFiled: May 30, 2003Date of Patent: March 27, 2007Assignee: Shimano Inc.Inventor: Tatsuya Kawakami
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Patent number: 7146874Abstract: A bicycle shift control device is provided for a transmission actuating member, wherein the transmission actuating member moves to a plurality of transmission actuating positions for moving a bicycle transmission to a plurality of transmission positions. The shift control device comprises an operator attachment element that moves among a first operator attachment position, a second operator attachment position, and a third operator attachment position for causing an operation of the transmission actuating member. The second operator attachment position is disposed on a first path of movement from the first operator attachment position, and the third operator attachment position is disposed on a second path of movement from the first operator attachment position. The first path of movement is different from the second path of movement.Type: GrantFiled: February 14, 2003Date of Patent: December 12, 2006Assignee: Shimano, Inc.Inventors: Satoshi Shahana, Tatsuya Kawakami
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Publication number: 20060260428Abstract: a shift operating device for a bicycle comprises a mounting member structured to be mounted to the bicycle, a cable coupling member coupled to the mounting member for moving a cable in a cable pulling direction and a cable releasing direction, a positioning unit that selectively maintains the cable coupling member in a plurality of operating positions, a first operating member that moves in a first direction and in a second direction different from the first direction, and a transmission unit that transmits movement of the first operating member to the positioning unit such that the cable coupling member moves from an origin operating position toward a destination operating position when the first operating member moves in either of both the first direction and the second direction.Type: ApplicationFiled: May 23, 2006Publication date: November 23, 2006Applicant: SHIMANO, INC.Inventors: TATSUYA KAWAKAMI, ETSUYOSHI WATARAI
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Publication number: 20060130602Abstract: A bicycle control apparatus comprises a first position setting member having a plurality of first positioning members with a first pitch, an operating member that rotates relative to the position setting member, and a second position setting member structured to rotate with the operating member and to move axially. The second position setting member has a plurality of second positioning members with a second pitch, wherein the first pitch is different from the second pitch. The first pitch and the second pitch are set so that an engagement pitch between a first engagement position of the second position setting member and a second engagement position of the second position setting member that results from rotation of the operating member is less than both the first pitch and the second pitch.Type: ApplicationFiled: December 21, 2004Publication date: June 22, 2006Applicant: SHIMANO, INC.Inventor: Tatsuya Kawakami
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Publication number: 20060096405Abstract: A bicycle shift operating device comprises a bicycle mounting member, a shift operating member, a take-up member, a positioning member, a first retaining mechanism and a second retaining mechanism. The shift operating member is rotatably coupled to the mounting member to move in opposing rotational directions. The take-up member is rotatably coupled to the mounting member to selectively pull and release a shift control cable. The positioning member is rotatably coupled to the mounting member. The first retaining mechanism is arranged to retain the positioning member relative to the mounting member. The second retaining mechanism is coupled to the take-up member and the positioning member to normally apply a retaining force on the take-up member and the positioning member. The second retaining mechanism is arranged to reduce the retaining force upon moving the shift operating member.Type: ApplicationFiled: November 8, 2004Publication date: May 11, 2006Applicant: Shimano Inc.Inventor: Tatsuya Kawakami
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Publication number: 20060070484Abstract: An apparatus for reducing an engaging force of an engaging member for a bicycle component comprises a first engaging member and a movable second engaging member, wherein the first engaging member engages the second engaging member. A biasing mechanism applies a biasing force to bias the first engaging member and the second engaging member towards each other, wherein the biasing mechanism reduces the biasing force when the second engaging member moves.Type: ApplicationFiled: September 28, 2004Publication date: April 6, 2006Applicant: SHIMANO, INC.Inventor: Tatsuya Kawakami
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Publication number: 20060070478Abstract: A bicycle shift control device comprises a control body supported by a mounting member and rotatable about a rotational axis (X), wherein the mounting member defines a handlebar mounting axis (HB); an operating body coupled for displacement between a home position and a shift position; a transmission which converts the displacement of the operating body into a rotational displacement of the control body; and an interface member movably mounted relative to the operating body. The interface member pivots around a pivot axis (P) for moving the operating body from the home position to the shift position, wherein the pivot axis (P) is inclined relative to a handlebar mounting axis (HB). The interface member also moves in a direction toward a plane (PL) that contains the handlebar mounting axis (HB) and is parallel with the rotational axis (X) when the operating body moves from the home position toward the shift position.Type: ApplicationFiled: September 30, 2004Publication date: April 6, 2006Applicant: SHIMANO, INC.Inventor: Tatsuya Kawakami
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Publication number: 20060016288Abstract: A shift control device for a bicycle transmission comprises a mounting member adapted to mount the shift control device to a bicycle; a first lever operatively coupled to the mounting member such that the first lever stops at a plurality of positions corresponding to gear positions of the bicycle transmission, wherein the first lever moves in a first plane; and a second lever operatively coupled to the mounting member for movement in a second plane between a rest position and an operating position such that the second lever returns to the rest position after moving to the operating position. In this embodiment, the first plane is substantially parallel to the second plane.Type: ApplicationFiled: July 23, 2004Publication date: January 26, 2006Applicant: Shimano, Inc.Inventor: Tatsuya Kawakami
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Publication number: 20050241429Abstract: A bicycle transmission gear indicating device comprises a first indicator drive member adapted to move in response to movement of a first transmission control element; a second indicator drive member adapted to move in response to movement of a second transmission control element; and an indicating unit that indicates a bicycle transmission gear. A motion communicating unit is operatively coupled to the first indicator drive member and to the second indicator drive member and is adapted to communicate motion of the first indicator drive member and the second indicator drive member to the indicating unit.Type: ApplicationFiled: April 29, 2004Publication date: November 3, 2005Inventor: Tatsuya Kawakami
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Publication number: 20050241430Abstract: A mechanical operating device comprises a first output element; a first output element positioning mechanism that positions the first output element in a plurality of first output element positions; a second output element; a second output element positioning mechanism that positions the second output element in a plurality of second output element positions; and a first input element that moves between a first rest position and a first actuating position. An operating unit is operatively coupled to the first input element, to the first output element positioning mechanism and to the second output element positioning mechanism so that movement of the first input element between the first rest position and the first actuating position operates at least one of the first output element positioning mechanism and the second output element positioning mechanism.Type: ApplicationFiled: April 29, 2004Publication date: November 3, 2005Inventor: Tatsuya Kawakami
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Patent number: 6848335Abstract: A bicycle shift operating device basically includes first operating member operatively coupled to a winding mechanism by a follower link and an operating link. A second operating member is also preferably operatively coupled to the winding mechanism. The cable winding mechanism is mounted on a first pivot axle and is configured to be selectively retained in a plurality of shift positions. In one shift operating device, the operating link is pivotally mounted on the first pivot axle. In an alternate shift operating device, the operating link is pivotally mounted on a second pivot axle that is spaced from the first pivot axle and parallel to the first pivot axle. The first operating member is preferably arranged to reciprocate in a first direction. The second operating member is preferably arranged to move in a second direction that is substantially parallel to the first direction.Type: GrantFiled: September 29, 2003Date of Patent: February 1, 2005Assignee: Shimano, Inc.Inventor: Tatsuya Kawakami
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Publication number: 20040237697Abstract: A bicycle shift operating device is basically provided with a first operating member, a second operating member, a shift wire take-up element and a wire winding/release mechanism. The second operating member is operatively coupled to the first operating member to move with the first operating member during movement of the first operating member, and to move the first operating member during movement of the second operating member. The shift wire take-up element is rotated in a first rotational direction by the first operating member and in a second rotational direction that is opposite to the first rotational direction by the second operating member. The wire winding/release mechanism is operatively coupled to the shift wire take-up element and the first and second operating members to selectively hold the shift wire take-up element in one of a plurality of shift positions.Type: ApplicationFiled: May 30, 2003Publication date: December 2, 2004Applicant: Shimano Inc.Inventor: Tatsuya Kawakami
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Patent number: 6792825Abstract: A cable operated bicycle shift control device has an outer casing with a cable receiving bore and an access opening for accessing a cable operated winding mechanism to perform maintenance such as replacement of the cable. The cable operated winding mechanism is disposed in the outer casing such that its cable attachment point is disposed relative to the access opening to be accessible from the access opening. A maintenance cover movably is coupled to the outer casing between a closed position overlying the access opening and an open position exposing the access opening.Type: GrantFiled: June 28, 2001Date of Patent: September 21, 2004Assignee: Shimano Inc.Inventor: Tatsuya Kawakami
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Patent number: 6726587Abstract: A derailleur includes a base member, a movable member coupled for moving relative to the base member and supporting a chain guide, a first actuating unit for moving the movable member relative to the base member, and a second actuating unit for moving the first actuating unit. In one embodiment, the second actuating unit includes a wire winding surface, and a position adjuster is provided for adjusting a relative position between the first actuating unit and the second actuating unit. In another embodiment, the second actuating unit comprises a first actuating member movably coupled to a second actuating member, and a position adjuster is provided for adjusting a relative position between the first actuating unit and the second actuating unit. Alternatively, a position adjuster is provided for adjusting a relative position between the first actuating member and the second actuating member.Type: GrantFiled: November 20, 2001Date of Patent: April 27, 2004Assignee: Shimano, Inc.Inventor: Tatsuya Kawakami
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Patent number: 6694840Abstract: A bicycle shift operating device basically includes first operating member operatively coupled to a winding mechanism by a follower link and an operating link. A second operating member is also preferably operatively coupled to the winding mechanism. The cable winding mechanism is mounted on a first pivot axle and is configured to be selectively retained in a plurality of shift positions. In one shift operating device, the operating link is pivotally mounted on the first pivot axle. In an alternate shift operating device, the operating link is pivotally mounted on a second pivot axle that is spaced from the first pivot axle and parallel to the first pivot axle. The first operating member is preferably arranged to reciprocate in a first direction. The second operating member is preferably arranged to move in a second direction that is substantially parallel to the first direction.Type: GrantFiled: January 10, 2002Date of Patent: February 24, 2004Assignee: Shimano Inc.Inventor: Tatsuya Kawakami
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Publication number: 20040005948Abstract: A bicycle shift control device is provided for a transmission actuating member, wherein the transmission actuating member moves to a plurality of transmission actuating positions for moving a bicycle transmission to a plurality of transmission positions. The shift control device comprises an operator attachment element that moves among a first operator attachment position, a second operator attachment position, and a third operator attachment position for causing an operation of the transmission actuating member. The second operator attachment position is disposed on a first path of movement from the first operator attachment position, and the third operator attachment position is disposed on a second path of movement from the first operator attachment position. The first path of movement is different from the second path of movement.Type: ApplicationFiled: February 14, 2003Publication date: January 8, 2004Applicant: Shimano, Inc.Inventors: Satoshi Shahana, Tatsuya Kawakami