Patents by Inventor Yasuhiro Saitou
Yasuhiro Saitou 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: 11788324Abstract: An outer handle device for a vehicle door includes: an outer handle having a supported portion on one end part thereof in a longitudinal direction; a support member having paired leg portions sandwiching the supported portion from opposite sides; and a base having paired support side walls sandwiching the leg portions from opposite sides. The supported portion is pivotably supported on the support member attached to the base by the leg portion engaging with the support side wall. A restriction device is provided between the supported portion and the support member, the restriction device restricting displacement of the support member toward a side on which engagement of the support member with the base is released at least when pulling the outer handle. Accordingly, it is possible to maintain a state in which the support member is attached to the base, even when the outer handle is forcibly pulled.Type: GrantFiled: May 24, 2019Date of Patent: October 17, 2023Assignee: Kabushiki Kaisha Honda LockInventors: Tatsuya Ooyama, Yasuhiro Saitou
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Patent number: 11668118Abstract: In a door handle device for a vehicle, an elastic stopper includes: a stopper main body having a receiving surface that can be brought into contact with and separated from one of case and handle members, and being attached to the other member; and a lip part formed integrally with the stopper main body. The stopper main body is formed into a shape capable of alleviating impact by bringing the receiving surface into contact with the one member when the handle member swinging in a closing direction reaches a closed position. The lip part is formed to protrude further toward the one member side than the receiving surface in a free state of the lip part, and can exert a resilient force in a direction where the receiving surface and the one member are separated from each other when the handle member starts open-swing thereof from the closed position.Type: GrantFiled: June 17, 2021Date of Patent: June 6, 2023Assignee: Kabushiki Kaisha Honda LockInventors: Yuki Yamaguchi, Yasuhiro Saitou
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Patent number: 11255113Abstract: An outer handle device for a vehicle door includes: a base mounted on an outer panel from an inside of the outer panel; an operating handle disposed on an outside of the outer panel and having a support shaft that extends along a swing axis on a support arm part entering the inside of the outer panel from the outside thereof; and a support member that is fitted to the base, engages with the support shaft from a rear, makes a front end of the support arm part abut against an abutment receiving part while the operating handle is swinging, and restrains displacement of the support shaft toward the outer panel. The base is provided with a restricting part that makes contact with the support arm part when the operating handle swings, thus restricting displacement of the operating handle in moving away inwardly from the outer panel.Type: GrantFiled: July 26, 2018Date of Patent: February 22, 2022Assignee: Kabushiki Kaisha Honda LockInventors: Yasuhiro Saitou, Tatsuya Ooyama
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Publication number: 20210396052Abstract: In a door handle device for a vehicle, an elastic stopper includes: a stopper main body having a receiving surface that can be brought into contact with and separated from one of case and handle members, and being attached to the other member; and a lip part formed integrally with the stopper main body. The stopper main body is formed into a shape capable of alleviating impact by bringing the receiving surface into contact with the one member when the handle member swinging in a closing direction reaches a closed position. The lip part is formed to protrude further toward the one member side than the receiving surface in a free state of the lip part, and can exert a resilient force in a direction where the receiving surface and the one member are separated from each other when the handle member starts open-swing thereof from the closed position.Type: ApplicationFiled: June 17, 2021Publication date: December 23, 2021Inventors: Yuki YAMAGUCHI, Yasuhiro SAITOU
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Patent number: 10774568Abstract: In an outer handle device for a vehicle door, a cylinder lock having a key hole is mounted on an handle base in an attitude in which the cylinder lock is inclined downward or upward in going outward in a vehicle width direction while the key hole is made to face an outside when an operating handle is in an operated position but the key hole is covered by an handle main body when the operating handle is in a non-operated position. A provisional holding device is provided between the handle base and the cylinder lock, provisionally holds a mounted position and a mounted attitude of the cylinder lock with respect to the handle base, and is formed to guide the cylinder lock inserted into an insertion hole provided in the handle base so that the cylinder lock attains the mounted attitude at the mounted position.Type: GrantFiled: October 26, 2018Date of Patent: September 15, 2020Assignee: Kabushiki Kaisha Honda LockInventors: Yasuhiro Saitou, Tatsuya Ooyama, Kazuki Moro
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Publication number: 20200190867Abstract: An outer handle device for a vehicle door includes: an outer handle having a supported portion on one end part thereof in a longitudinal direction; a support member having paired leg portions sandwiching the supported portion from opposite sides; and a base having paired support side walls sandwiching the leg portions from opposite sides. The supported portion is pivotably supported on the support member attached to the base by the leg portion engaging with the support side wall. A restriction device is provided between the supported portion and the support member, the restriction device restricting displacement of the support member toward a side on which engagement of the support member with the base is released at least when pulling the outer handle. Accordingly, it is possible to maintain a state in which the support member is attached to the base, even when the outer handle is forcibly pulled.Type: ApplicationFiled: May 24, 2019Publication date: June 18, 2020Inventors: Tatsuya OOYAMA, Yasuhiro SAITOU
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Publication number: 20200071968Abstract: In an outer handle device for a vehicle door, a cylinder lock having a key hole is mounted on an handle base in an attitude in which the cylinder lock is inclined downward or upward in going outward in a vehicle width direction while the key hole is made to face an outside when an operating handle is in an operated position but the key hole is covered by an handle main body when the operating handle is in a non-operated position. A provisional holding device is provided between the handle base and the cylinder lock, provisionally holds a mounted position and a mounted attitude of the cylinder lock with respect to the handle base, and is formed to guide the cylinder lock inserted into an insertion hole provided in the handle base so that the cylinder lock attains the mounted attitude at the mounted position.Type: ApplicationFiled: October 26, 2018Publication date: March 5, 2020Inventors: Yasuhiro SAITOU, Tatsuya OOYAMA, Kazuki MORO
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Publication number: 20190234123Abstract: An outer handle device for a vehicle door includes: a base mounted on an outer panel from an inside of the outer panel; an operating handle disposed on an outside of the outer panel and having a support shaft that extends along a swing axis on a support arm part entering the inside of the outer panel from the outside thereof; and a support member that is fitted to the base, engages with the support shaft from a rear, makes a front end of the support arm part abut against an abutment receiving part while the operating handle is swinging, and restrains displacement of the support shaft toward the outer panel. The base is provided with a restricting part that makes contact with the support arm part when the operating handle swings, thus restricting displacement of the operating handle in moving away inwardly from the outer panel.Type: ApplicationFiled: July 26, 2018Publication date: August 1, 2019Inventors: Yasuhiro SAITOU, Tatsuya OOYAMA
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Patent number: 8371977Abstract: A transmission ratio variable mechanism is provided with: an input member and an output member capable of rotation about a first axis; an inner race for differentially rotatably coupling to each member; an outer race for rotatably supporting the inner race via a rolling element; and a transmission ratio variable mechanism-use electric motor for rotation-driving the outer race. A second axis which is a center line of the inner race and the outer race is inclined to the first axis. A first concave-convex engaging section for engaging one side end surface of the inner race and a power transmission surface of the input member corresponding to the one end surface are arranged. There is provided a second concave-convex engaging section for engaging the other end surface of the inner race and a power transmission surface of the output member.Type: GrantFiled: October 17, 2008Date of Patent: February 12, 2013Assignee: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Patent number: 8181734Abstract: A motor vehicle steering system includes a transmission ratio variable mechanism capable of changing a transmission ratio, and a steering-assist-force imparting mechanism. The transmission ratio variable mechanism is provided with an input member and an output member capable of rotation about a first axis, a first bearing ring for differentially rotatably coupling to each of the input and output member, a second bearing ring for rotatably supporting the first bearing ring via a rolling element, and an electric motor for rotation-driving the second bearing ring. A second axis that is a center line of the first bearing ring and the second bearing ring is inclined relative to the first axis.Type: GrantFiled: October 17, 2008Date of Patent: May 22, 2012Assignee: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Patent number: 8047325Abstract: A vehicle steering system including a transmission ratio variable mechanism that has a first shaft connected to a steering member and a second shaft connected to a turning mechanism, coupled coaxially to each other, and a transmission ratio variable mechanism motor disposed coaxially with the first and second shafts for driving the transmission ratio variable mechanism. The transmission ratio variable mechanism motor includes a tubular rotor, and an accommodation space is defined on the inner side in the radial direction of the tubular rotor. At least one of sensors is disposed inside the accommodation space.Type: GrantFiled: December 19, 2008Date of Patent: November 1, 2011Assignee: JTEKT CorporationInventors: Yasuhiro Saitou, Hidetaka Otsuki, Yasuaki Tsuji
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Publication number: 20100282535Abstract: A vehicle steering system including a transmission ratio variable mechanism that has a first shaft connected to a steering member and a second shaft connected to a turning mechanism, coupled coaxially to each other, and a transmission ratio variable mechanism motor disposed coaxially with the first and second shafts for driving the transmission ratio variable mechanism. The transmission ratio variable mechanism motor includes a tubular rotor, and an accommodation space is defined on the inner side in the radial direction of the tubular rotor. At least one of sensors is disposed inside the accommodation space.Type: ApplicationFiled: December 19, 2008Publication date: November 11, 2010Applicant: JTEKT CorporationInventors: Yasuhiro Saitou, Hidetaka Otsuki, Yusuaki Tsuji
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Publication number: 20100224436Abstract: A motor vehicle steering system includes a transmission ratio variable mechanism capable of changing a transmission ratio, and a steering-assist-force imparting mechanism. The transmission ratio variable mechanism is provided with an input member and an output member capable of rotation about a first axis, a first bearing ring for differentially rotatably coupling to each of the input and output member, a second bearing ring for rotatably supporting the first bearing ring via a rolling element, and an electric motor for rotation-driving the second bearing ring. A second axis that is a center line of the first bearing ring and the second bearing ring is inclined relative to the first axis.Type: ApplicationFiled: October 17, 2008Publication date: September 9, 2010Applicant: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Publication number: 20100218638Abstract: A transmission ratio variable mechanism is provided with: an input member and an output member capable of rotation about a first axis; an inner race for differentially rotatably coupling to each member; an outer race for rotatably supporting the inner race via a rolling element; and a transmission ratio variable mechanism-use electric motor for rotation-driving the outer race. A second axis which is a center line of the inner race and the outer race is inclined to the first axis. A first concave-convex engaging section for engaging one side end surface of the inner race and a power transmission surface of the input member corresponding to the one end surface are arranged. There is provided a second concave-convex engaging section for engaging the other end surface of the inner race and a power transmission surface of the output member.Type: ApplicationFiled: October 17, 2008Publication date: September 2, 2010Applicant: JTEKT CorporationInventors: Akihiko Shiina, Masaki Nakaoka, Yasuaki Tsuji, Yasuhiro Saitou, Sunao Tsuchimochi, Hidetaka Otsuki, Tomonari Yamakawa
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Patent number: 7604088Abstract: An electric power steering system is provided which is capable of providing a favorable steering feeling without using compensation logics such as of inertia compensation and friction compensation. The electric power steering system includes road-noise suppression control means (213) for controlling a steering assist motor (9) in a manner to damp torque transmission in a higher frequency region representing road noises than a frequency region representing road information. A friction value of a steering mechanism (A) is decreased enough to allow the intrinsic vibrations of the steering mechanism (A) to appear. Rotor inertia of the steering assist motor (9) is set to a value small enough to allow the frequencies of the intrinsic vibrations to be present in the frequency region where the torque transmission is damped by the road-noise suppression control means (213).Type: GrantFiled: May 9, 2005Date of Patent: October 20, 2009Assignee: JTEKT CorporationInventors: Katsutoshi Nishizaki, Shirou Nakano, Ken Matsubara, Toshiaki Oya, Yasuhiro Kamatani, Masahiko Sakamaki, Yoshikazu Kuroumaru, Shigeki Nagase, Takayasu Yamazaki, Yasuhiro Saitou, Takeshi Ueda
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Publication number: 20070205041Abstract: An electric power steering system is provided which is capable of providing a favorable steering feeling without using compensation logics such as of inertia compensation and friction compensation. The electric power steering system includes road-noise suppression control means (213) for controlling a steering assist motor (9) in a manner to damp torque transmission in a higher frequency region representing road noises than a frequency region representing road information. A friction value of a steering mechanism (A) is decreased enough to allow the intrinsic vibrations of the steering mechanism (A) to appear. Rotor inertia of the steering assist motor (9) is set to a value small enough to allow the frequencies of the intrinsic vibrations to be present in the frequency region where the torque transmission is damped by the road-noise suppression control means (213).Type: ApplicationFiled: May 9, 2005Publication date: September 6, 2007Applicant: JTEKT CorporationInventors: Katsutoshi Nishizaki, Shirou Nakano, Ken Matsubara, Toshiaki Oya, Yasuhiro Kamatani, Masahiko Sakamaki, Yoshikazu Kuromaru, Shigeki Nagase, Takayasu Yamazaki, Yasuhiro Saitou, Takeshi Ueda
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Patent number: 6539275Abstract: A controller for a machine capable of performing acceleration/deceleration control to which an optimal tangential acceleration within an allowable maximum acceleration for each axis is applied. A first interpolation section receives data obtained by analysis of a program by a command analysis section, an makes interpolating calculation in every first sampling period to output it into an intermediate memory. A tangential acceleration calculating section determines a tangential acceleration based on each segment and the allowable maximum acceleration for each axis to output it into the intermediate memory. A deceleration target velocity calculating section prepares an acceleration/deceleration pattern for a plurality of segments stored in the intermediate memory, to output it to the intermediate memory.Type: GrantFiled: May 27, 1999Date of Patent: March 25, 2003Assignee: Fanuc Ltd.Inventors: Toru Mizuno, Toshiaki Otsuki, Shoichi Sagara, Yasuhiro Saitou
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Patent number: 6384857Abstract: An image forming apparatus that increases the relative resolution of a small image to be output for recording. When the image forming apparatus is used for copying an image of an original document, when the size of an image to be output is not greater than a predetermined size, a CPU controls a resolution switching unit for increasing the resolution to form an image with increased resolution.Type: GrantFiled: July 21, 1997Date of Patent: May 7, 2002Assignee: Canon Kabushiki KaishaInventors: Nobuatsu Sasanuma, Tetsuya Atsumi, Yuichi Ikeda, Yasuhiro Saitou
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Publication number: 20010043263Abstract: The invention intends to relatively increase resolution when the size of an image to be output for recording is small, enabling even a gradation image to be visually perceived with satisfactory quality. To this end, in a disclosed image forming apparatus for copying an image of an original document set on a reading apparatus, when the size of an image to be output is not larger than a predetermined size, a CPU controls a resolution switching section to increase resolution, thereby forming the image with the increased resolution.Type: ApplicationFiled: July 21, 1997Publication date: November 22, 2001Inventors: NOBUATSU SASANUMA, TETSUYA ATSUMI, YUICHI IKEDA, YASUHIRO SAITOU