Patents by Inventor Daisuke Nago
Daisuke Nago 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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Patent number: 7665384Abstract: A bicycle control device is basically provided with a base member, a shift control unit, a control member and a first shift operating lever. The shift control unit is mounted to the base member. The control member includes a first portion operatively coupled to the shift control unit and a second portion spaced from the first portion. The first shift operating lever is movably coupled relative to the base member to move along a first shift operating path and movably coupled relative to the base member to move along a non-shift operating path that is non-coincident with the first shift operating path. The first shift operating lever is slidably engaged with the second portion of the control member such that the second portion of the control member is moved when the first shift operating lever is moved along the non-shift operating path with sliding contact therebetween.Type: GrantFiled: June 1, 2007Date of Patent: February 23, 2010Assignee: Shimano Inc.Inventors: Hisayuki Sato, Daisuke Nago, Yoshimitsu Miki
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Patent number: 7461724Abstract: A dual lever hydraulic brake assembly is described. The brake assembly comprises two levers operatively connected to a hydraulic brake system. A hydraulic assembly is also described wherein a lever is operatively connected to a master cylinder such that moving the lever in an actuating direction moves the master cylinder in a first direction.Type: GrantFiled: May 27, 2005Date of Patent: December 9, 2008Assignee: Shimano Inc.Inventor: Daisuke Nago
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Publication number: 20080295636Abstract: A bicycle control device is basically provided with a base member, a shift control unit, a control member and a first shift operating lever. The shift control unit is mounted to the base member. The control member includes a first portion operatively coupled to the shift control unit and a second portion spaced from the first portion. The first shift operating lever is movably coupled relative to the base member to move along a first shift operating path and movably coupled relative to the base member to move along a non-shift operating path that is non-coincident with the first shift operating path. The first shift operating lever is slidably engaged with the second portion of the control member such that the second portion of the control member is moved when the first shift operating lever is moved along the non-shift operating path with sliding contact therebetween.Type: ApplicationFiled: June 1, 2007Publication date: December 4, 2008Applicant: Shimano Inc.Inventors: Hisayuki Sato, Daisuke Nago, Yoshimitsu Miki
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Publication number: 20070023237Abstract: A bicycle rim brake assembly includes a fastening shaft, a mounting part, a pair of brake arms and a pair of brake shoe attaching parts. The fastening shaft extends in an axial direction and is configured for attachment to a portion of a bicycle frame adjacent to the bicycle wheel. The mounting part includes a fastening portion that is configured such that the fastening shaft extends through the fastening portion. The mounting part and the fastening portion are movable between a plurality of mounting positions relative to the fastening shaft along a first direction that intersects the axial direction. The brake arms are supported in a freely pivotal manner on an outer perimeter of the mounting part. The brake shoe attaching parts are provided on respective ones of the brake arms.Type: ApplicationFiled: April 27, 2006Publication date: February 1, 2007Applicant: Shimano Inc.Inventor: Daisuke Nago
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Publication number: 20060266595Abstract: A dual lever hydraulic brake assembly is described. The brake assembly comprises two levers operatively connected to a hydraulic brake system. A hydraulic assembly is also described wherein a lever is operatively connected to a master cylinder such that moving the lever in an actuating direction moves the master cylinder in a first direction.Type: ApplicationFiled: May 27, 2005Publication date: November 30, 2006Applicant: Shimano Inc.Inventor: Daisuke Nago
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Patent number: 7114229Abstract: A tube insert installing tool includes first and second tube gripping portions, a tube insert supporting portion and a user actuation portion. The first and second tube gripping portions are configured to engage an end part of a tube. The tube insert supporting portion is configured to support a tube insert. The user actuation portion is operatively coupled to the first and second tube gripping portions to move the first and second tube gripping portions between an open release orientation and a tube gripping orientation. The user actuation portion includes an insert pressing part configured and arranged to push the tube insert into the end part of the tube during subsequent movement of the user actuation portion in a single movement of the user actuation portion from the open release orientation to a final tube insertion orientation.Type: GrantFiled: January 13, 2006Date of Patent: October 3, 2006Assignee: Shimano Inc.Inventor: Daisuke Nago
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Patent number: 6974275Abstract: A bicycle component assembly is provided that includes a mounting member and a component attachment member coupled together via at least one locking member and at least a pair of fasteners. The locking member is mounted between the component attachment member and the heads of the fasteners. The locking member includes a pair of attachment portions with holes extending between contact surfaces and frictionally treated engagement surfaces of the attachment portions. A connecting section extends between the engagement portions of the locking member. The frictionally treated engagement surfaces are textured surfaces and/or coated with a frictional material. The head portions of the fasteners abut the contact surfaces to press the locking member against the component attachment member. Preferably, the attachment portions have flange sections that are bent to prevent rotation of the fasteners. Optionally, the connecting portion of the locking member can include a frictionally treated engagement surface.Type: GrantFiled: May 24, 2002Date of Patent: December 13, 2005Assignee: Shimano Inc.Inventors: Daisuke Nago, Keiji Matsueda
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Publication number: 20050097979Abstract: A bicycle brake control device comprises a mounting bracket for mounting the device to a bicycle, a lever mounted to the mounting bracket for rotation around a pivot axis, and an adjustment unit. The adjustment unit comprises a first adjustment component and a second adjustment component, wherein the first adjustment component adjusts a selected position of the lever relative to the mounting bracket, and the second adjustment component adjusts a position of a brake operating element when the lever is in the selected position.Type: ApplicationFiled: October 22, 2004Publication date: May 12, 2005Applicant: SHIMANO, INC.Inventor: Daisuke Nago
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Publication number: 20030219303Abstract: A bicycle component assembly is provided that includes a mounting member and a component attachment member coupled together via at least one locking member and at least a pair of fasteners. The locking member is mounted between the component attachment member and the heads of the fasteners. The locking member includes a pair of attachment portions with holes extending between contact surfaces and frictionally treated engagement surfaces of the attachment portions. A connecting section extends between the engagement portions of the locking member. The frictionally treated engagement surfaces are textured surfaces and/or coated with a frictional material. The head portions of the fasteners abut the contact surfaces to press the locking member against the component attachment member. Preferably, the attachment portions have flange sections that are bent to prevent rotation of the fasteners. Optionally, the connecting portion of the locking member can include a frictionally treated engagement surface.Type: ApplicationFiled: May 24, 2002Publication date: November 27, 2003Applicant: SHIMANO INC.Inventors: Daisuke Nago, Keiji Matsueda
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Patent number: 6530457Abstract: A one-piece brake disk for a vehicle includes a radially inner annular portion having a plurality of circumferentially located mounting holes defining a mounting circle; a radially outer annular portion concentric with the radially inner annular portion and having opposite braking surfaces; and a plurality of connecting arms extending from an inner peripheral surface of the radially outer annular portion to an outer peripheral surface of the radially inner annular portion. Each of the plurality of connecting arms is tangent to an effective circle concentric with the mounting circle, wherein the effective circle has a radius greater than a radius of the mounting circle.Type: GrantFiled: December 29, 1999Date of Patent: March 11, 2003Assignee: Shimano, Inc.Inventors: Daisuke Nago, Hisashi Matsui
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Patent number: 6471457Abstract: A screw retention device is disclosed having a clamping part and a hook part. The clamping part engages the head of a screw for securely retaining the screw. The hook part interacts with a surface of the component on which the screw is fastened to limit the rotation of the screw. The screw retention device is configured to be used with any known screw having a protruding head. In a preferred embodiment of the invention, the screw retention device is used with a serrated screw wherein the clamping part of the screw retention device includes a serrated portion which corresponds to and engages with the serrations on the serrated screw to securely grip the screw.Type: GrantFiled: February 23, 2001Date of Patent: October 29, 2002Assignee: Shimano, Inc.Inventor: Daisuke Nago
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Publication number: 20020119027Abstract: A screw retention device is disclosed having a clamping part and a hook part. The clamping part engages the head of a screw for securely retaining the screw. The hook part interacts with a surface of the component on which the screw is fastened to limit the rotation of the screw. The screw retention device is configured to be used with any known screw having a protruding head. In a preferred embodiment of the invention, the screw retention device is used with a serrated screw wherein the clamping part of the screw retention device includes a serrated portion which corresponds to and engages with the serrations on the serrated screw to securely grip the screw.Type: ApplicationFiled: February 23, 2001Publication date: August 29, 2002Inventor: Daisuke Nago
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Publication number: 20020066627Abstract: A martensitic stainless steel for a disc brake rotor includes, in mass percent, 1 C: 0.04-0.10%, Si: at most 1.0%, Mn: 0.1-2.0%, P: at most 0.04%, S: at most 0.01%, Cr: greater than 11.5 to 13.5%, Al: at most 0.1%, N: at most 0.04%, Cu: 0-1.0%, Ni: 0-1.0%, Ti: 0-0.Type: ApplicationFiled: October 9, 2001Publication date: June 6, 2002Inventors: Shinji Tsuge, Takaaki Matsuda, Yasutaka Okada, Tsuyoshi Sakashita, Daisuke Nago
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Patent number: 6386342Abstract: A martensitic stainless steel for a disc brake rotor includes, in mass percent, C: 0.04-0.10%, Si: at most 1.0%, Mn: 0.1-2.0%, P: at most 0.04%, S: at most 0.01%, Cr: greater than 11.5 to 13.5%, Al: at most 0.1%, N: at most 0.04%, Cu: 0-1.0%, Ni: 0-1.0%, Ti: 0-0.03% and one or more of Nb: 0.01-0.08% and V: 0.05-0.Type: GrantFiled: October 9, 2001Date of Patent: May 14, 2002Assignees: Sumitomo Metal Industries, Ltd., Shimano Inc.Inventors: Shinji Tsuge, Takaaki Matsuda, Yasutaka Okada, Tsuyoshi Sakashita, Daisuke Nago
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Patent number: 5913387Abstract: A bicycle brake device is disclosed for coupling onto either front or rear forks of a bicycle. The brake device is preferably has a pair of brake arms which are pivotally coupled to either the front or rear forks by a pair of mounting members. The mounting members are design to be installed on conventional mounting posts which can be attached to either a brake arch or directly to the fork. The brake arms have their pivot pins spaced upwardly and outwardly from the mounting posts brake arch or the fork to improve the braking force. Also, in a parallel push type of brake device, the position of the pivot pins increases the horizontal dimension of the linkage to reduce wobbling.Type: GrantFiled: July 16, 1997Date of Patent: June 22, 1999Assignee: Shimano Inc.Inventors: Kazuhisa Yamashita, Daisuke Nago