Patents by Inventor Toshihito Osawa
Toshihito Osawa 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: 10654512Abstract: A steering device includes an inner column and an outer column which has a guide cylinder portion supporting the inner column to be movable in an axial direction and a holding cylinder portion located at a rear side in the axial direction in relation to the guide cylinder portion and having a slit extending in the axial direction. The guide cylinder portion has a support face which slidably supports an outer circumferential face of the inner column and a regulation face which is located at a front side in the axial direction in relation to the support face and regulates a movement of the inner column in a radial direction. The guide cylinder portion is formed so that a distance from an axis to the regulation face in the radial direction is longer than a distance from the axis to the support face.Type: GrantFiled: March 6, 2017Date of Patent: May 19, 2020Assignees: YAMADA MANUFACTURING CO., LTD., HONDA MOTOR CO., LTD.Inventors: Toshihito Osawa, Minoru Takakusaki, Eric M. Heitkamp, Robert A. Salemme, Cameron R. Titus, Joshua D. Pritchard, Toshihiro Nakamura
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Patent number: 10501110Abstract: A steering system includes an inner column; an outer column including a guide tube part that supports the inner column to be movable in an axial direction and a holding tube part in which a slit extending in the axial direction is formed; and a telescopic adjustment mechanism that switches between a locked state in which an interval of the slit is reduced and movement of the inner column is regulated and an unlocked state in which the interval of the slit is increased and the movement of the inner column is allowed. An inner circumferential surface of the guide tube part has support surfaces that slidably support an outer circumferential surface of the inner column, and flanks located on the same circumference as the support surfaces and are separated from the outer circumferential surface of the inner column in a radial direction.Type: GrantFiled: March 2, 2018Date of Patent: December 10, 2019Assignee: YAMADA MANUFACTURING CO., LTD.Inventors: Toshihito Osawa, Minoru Takakusaki
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Publication number: 20180251148Abstract: A steering device includes an inner column and an outer column which has a guide cylinder portion supporting the inner column to be movable in an axial direction and a holding cylinder portion located at a rear side in the axial direction in relation to the guide cylinder portion and having a slit extending in the axial direction. The guide cylinder portion has a support face which slidably supports an outer circumferential face of the inner column and a regulation face which is located at a front side in the axial direction in relation to the support face and regulates a movement of the inner column in a radial direction. The guide cylinder portion is formed so that a distance from an axis to the regulation face in the radial direction is longer than a distance from the axis to the support face.Type: ApplicationFiled: March 6, 2017Publication date: September 6, 2018Inventors: Toshihito Osawa, Minoru Takakusaki, Eric M. Heitkamp, Robert A. Salemme, Cameron R. Titus, Joshua D. Pritchard, Toshihiro Nakamura
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Publication number: 20180251149Abstract: A steering system includes an inner column; an outer column including a guide tube part that supports the inner column to be movable in an axial direction and a holding tube part in which a slit extending in the axial direction is formed; and a telescopic adjustment mechanism that switches between a locked state in which an interval of the slit is reduced and movement of the inner column is regulated and an unlocked state in which the interval of the slit is increased and the movement of the inner column is allowed. An inner circumferential surface of the guide tube part has support surfaces that slidably support an outer circumferential surface of the inner column, and flanks located on the same circumference as the support surfaces and are separated from the outer circumferential surface of the inner column in a radial direction.Type: ApplicationFiled: March 2, 2018Publication date: September 6, 2018Inventors: Toshihito Osawa, Minoru Takakusaki
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Patent number: 8967017Abstract: A steering device includes a housing constituted by an enclosing main body section, a separation section formed on two sides of on the lower side of the enclosing main body section along the axial direction thereof, and clamping sections formed respectively on two sides of the enclosing main body section so as to face each other in the lateral direction of the separation section; a fixed bracket having fixed side sections that clamp the housing at two sides in the lateral direction; a clamp that clamps the two clamping sections of the housing and the two fixed side sections of the fixed bracket; an outer pipe having at the axially front side thereof a slit formed in the axial direction; and an inner pipe inserted into the inner circumferential side of the outer pipe.Type: GrantFiled: March 28, 2013Date of Patent: March 3, 2015Assignee: Yamada Manufacturing Co., Ltd.Inventors: Toshihito Osawa, Toru Sekiguchi, Katsutoshi Tsuji
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Publication number: 20130263686Abstract: A steering device includes a housing constituted by an enclosing main body section, a separation section formed on two sides of on the lower side of the enclosing main body section along the axial direction thereof, and clamping sections formed respectively on two sides of the enclosing main body section so as to face each other in the lateral direction of the separation section; a fixed bracket having fixed side sections that clamp the housing at two sides in the lateral direction; a clamp that clamps the two clamping sections of the housing and the two fixed side sections of the fixed bracket; an outer pipe having at the axially front side thereof a slit formed in the axial direction; and an inner pipe inserted into the inner circumferential side of the outer pipe.Type: ApplicationFiled: March 28, 2013Publication date: October 10, 2013Applicant: YAMADA MANUFACTURING CO., LTDInventors: Toshihito Osawa, Toru Sekiguchi, Katsutoshi Tsuji
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Patent number: 8051742Abstract: A steering wheel position adjustment device includes a movable bracket having adjusting long holes on both sides in a width direction of the movable bracket, a fixed bracket, a lock shaft penetrating through both of the adjusting long holes to support the movable bracket to the fixed bracket, a collar member which is rotatably supported within the movable bracket by the lock shaft and is capable of moving along, with the lock shaft, in a longitudinal direction and stopper shock-absorbing materials, which are attached to both side sections in the longitudinal direction of the adjusting long holes within the movable bracket, and each of which is formed thereon with an abutment surface against which the collar member abuts.Type: GrantFiled: June 6, 2008Date of Patent: November 8, 2011Assignee: Yamada Manufacturing Co., Ltd.Inventors: Toshihito Osawa, Suguru Sugishita
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Patent number: 7954852Abstract: An object of the present invention is to markedly increase the tilt holding force of a tilt telescopic column. A tilt telescopic steering device includes: a fixed bracket 1 fixed to a vehicle; a movable bracket 2 capable of moving relative to the fixed bracket 1; an intermediate bracket 3 which movably supports the movable bracket 2 in an axial direction, is rotatably pivoted on the fixed bracket 1 and is provided with a bearing 301 for rotatably supporting a steering shaft 101; a lock shaft 4 for tiltably and telescopicably fixing the fixed bracket 1 and the movable bracket 2 at a predetermined position; and a connecting shaft 5 for telescopicably fixing the movable bracket 2 and the intermediate bracket 3.Type: GrantFiled: August 19, 2008Date of Patent: June 7, 2011Assignees: Honda Motor Co., Ltd., Yamada Manufacturing Co., Ltd.Inventors: Osamu Ueno, Takahiro Furuhashi, Naoyuki Takezawa, Minoru Takakusaki, Toshihito Osawa
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Patent number: 7735391Abstract: To provide a steering device for tilt and telescopic adjustments in which the locked condition can be made stronger, and when unlocked, tilt and telescopic adjustment can be smoothly carried out. A steering device, comprising: a fixed bracket having fixed side parts on both sides in the width direction; a movable bracket arranged between the fixed side parts; a friction plate fixed and oppositely arranged with a suitable gap with respect to at least one of the two fixed side parts of the fixed bracket; and a friction washer that is inserted between the fixed side part and the friction plate. A lock bolt passes through for connecting the fixed bracket, the movable bracket, the friction plate, and the friction washer to be freely locked and unlocked.Type: GrantFiled: April 4, 2006Date of Patent: June 15, 2010Assignee: Yamada Manufacturing Co., Ltd.Inventors: Toshihito Osawa, Masayuki Imai
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Publication number: 20090066070Abstract: An object of the present invention is to markedly increase the tilt holding force of a tilt telescopic column. A tilt telescopic steering device includes: a fixed bracket 1 fixed to a vehicle; a movable bracket 2 capable of moving relative to the fixed bracket 1; an intermediate bracket 3 which movably supports the movable bracket 2 in an axial direction, is rotatably pivoted on the fixed bracket 1 and is provided with a bearing 301 for rotatably supporting a steering shaft 101; a lock shaft 4 for tiltably and telescopicably fixing the fixed bracket 1 and the movable bracket 2 at a predetermined position; and a connecting shaft 5 for telescopicably fixing the movable bracket 2 and the intermediate bracket 3.Type: ApplicationFiled: August 19, 2008Publication date: March 12, 2009Applicants: Honda Motor Co., Ltd., Yamada Manufacturing, Co., Ltd.Inventors: Osamu Ueno, Takahiro Furuhashi, Naoyuki Takezawa, Minoru Takakusaki, Toshihito Osawa
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Publication number: 20090044657Abstract: A steering wheel position adjustment device includes a movable bracket having adjusting long holes on both sides in a width direction of the movable bracket, a fixed bracket, a lock shaft penetrating through both of the adjusting long holes to support the movable bracket to the fixed bracket, a collar member which is rotatably supported within the movable bracket by the lock shaft and is capable of moving along, with the lock shaft, in a longitudinal direction and stopper shock-absorbing materials, which are attached to both side sections in the longitudinal direction of the adjusting long holes within the movable bracket, and each of which is formed thereon with an abutment surface against which the collar member abuts.Type: ApplicationFiled: June 6, 2008Publication date: February 19, 2009Applicant: YAMADA MANUFACTURING CO., LTD.Inventors: Toshihito Osawa, Suguru Sugishita
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Publication number: 20060243084Abstract: To provide a steering device for tilt and telescopic adjustments in which the locked condition can be made stronger, and when unlocked, tilt and telescopic adjustment can be smoothly carried out. A steering device, comprising: a fixed bracket having fixed side parts on both sides in the width direction; a movable bracket arranged between the fixed side parts; a friction plate fixed and oppositely arranged with a suitable gap with respect to at least one of the two fixed side parts of the fixed bracket; and a friction washer that is inserted between the fixed side part and the friction plate. A lock bolt passes through for connecting the fixed bracket, the movable bracket, the friction plate, and the friction washer to be freely locked and unlocked.Type: ApplicationFiled: April 4, 2006Publication date: November 2, 2006Applicant: YAMADA MANUFACTURING CO., LTD.Inventors: Toshihito Osawa, Masayuki Imai