Patents by Inventor Ryusuke Sasaki
Ryusuke Sasaki 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: 20230203980Abstract: A cooling device for an internal combustion engine is provided. The cooling device includes a first passage connected to the internal combustion engine and circulating a coolant, a second passage connected to the internal combustion engine and circulating the coolant, a heat exchanger provided on the first passage and configured such that heat exchange is performed with respect to the coolant, a first pump provided on the first passage, a second pump provided on the second passage and an electronic control unit controlling the first pump and the second pump. The electronic control unit, when a temperature of the coolant is no lower than a predetermined temperature, drives the first pump such that a flow rate of the coolant in the first passage increases as compared to when the temperature of the coolant is lower than the predetermined temperature, and performs first control of stopping the second pump.Type: ApplicationFiled: December 2, 2022Publication date: June 29, 2023Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN CORPORATIONInventors: Noboru TAKAGI, Shoichi AKIYAMA, Hirokazu TANAKA, Masazumi YOSHIDA, Ryusuke SASAKI, Masahiro KUROKI, Koki FUKUTA
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Patent number: 11680510Abstract: A cooling device for an internal combustion engine is provided. The cooling device includes a first passage connected to the internal combustion engine and circulating a coolant, a second passage connected to the internal combustion engine and circulating the coolant, a heat exchanger provided on the first passage and configured such that heat exchange is performed with respect to the coolant, a first pump provided on the first passage, a second pump provided on the second passage and an electronic control unit controlling the first pump and the second pump. The electronic control unit, when a temperature of the coolant is no lower than a predetermined temperature, drives the first pump such that a flow rate of the coolant in the first passage increases as compared to when the temperature of the coolant is lower than the predetermined temperature, and performs first control of stopping the second pump.Type: GrantFiled: December 2, 2022Date of Patent: June 20, 2023Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN CORPORATIONInventors: Noboru Takagi, Shoichi Akiyama, Hirokazu Tanaka, Masazumi Yoshida, Ryusuke Sasaki, Masahiro Kuroki, Koki Fukuta
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Patent number: 10196961Abstract: A device seating a valve body with the aid of an urging force of a spring by stopping the operation of a pump, changes over an energization state of a coil of at least one of the liquid shutoff valves which is changed over to the closed-valve state where the coil is energized, and then resumes the operation of the pump. Upon detecting the start of operation of the pump, a valve control unit causes a pump control unit to perform opening-closing force-feed control, where an amount of the cooling liquid force-fed by the pump is set to an amount within such a range that the valve body of the liquid shutoff valves whose coil is energized is not displaced in a valve-opening direction while the valve body of the liquid shutoff valves whose coil is not energized is displaced in the valve-opening direction.Type: GrantFiled: July 19, 2016Date of Patent: February 5, 2019Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Noboru Takagi, Yasunobu Toyoda, Hirotaka Watanabe, Masazumi Yoshida, Ryusuke Sasaki
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Publication number: 20170037769Abstract: An engine cooling device includes: a water pump; a radiator; a first cooling water channel going through the radiator; a second cooling water channel not going through the radiator; a solenoid valve provided in the second cooling water channel; and a control unit. The control unit moves, at a time of closing the solenoid valve, a valve body in a valve closing direction while the cooling water is passing at a decreased flow rate so as to close the solenoid valve to cut off passage of the cooling water in the second cooling water channel.Type: ApplicationFiled: August 3, 2016Publication date: February 9, 2017Applicants: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masazumi YOSHIDA, Yuta HIRATSUKA, Kenichi KOMURO, Ryusuke SASAKI, Noboru TAKAGI
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Publication number: 20170037771Abstract: A device seating a valve body with the aid of an urging force of a spring by stopping the operation of a pump, changes over an energization state of a coil of at least one of the liquid shutoff valves which is changed over to the closed-valve state where the coil is energized, and then resumes the operation of the pump. Upon detecting the start of operation of the pump, a valve control unit causes a pump control unit to perform opening-closing force-feed control, where an amount of the cooling liquid force-fed by the pump is set to an amount within such a range that the valve body of the liquid shutoff valves whose coil is energized is not displaced in a valve-opening direction while the valve body of the liquid shutoff valves whose coil is not energized is displaced in the valve-opening direction.Type: ApplicationFiled: July 19, 2016Publication date: February 9, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Noboru TAKAGI, Yasunobu TOYODA, Hirotaka WATANABE, Masazumi YOSHIDA, Ryusuke SASAKI
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Patent number: 7161600Abstract: An unprocessed cluster index and its amount of parallel movement are acquired. The order of processing clusters does not matter as long as the frame is the same. Subsequently, with respect to an unprocessed vertex corresponding to this acquired cluster index, a vertex index and the weight w of this vertex are obtained. Then, according to the amount of parallel movement and weight w in the same frame, the values of coordinates of the vertex buffer are changed. Since the cluster transformation is effected by parallel movement here, the order of processing clusters does not matter, and it is thereby possible to calculate the vertex coordinates after transformation by simple multiplication and addition alone without matrix operations.Type: GrantFiled: January 26, 2001Date of Patent: January 9, 2007Assignee: Kabushiki Kaisha Square EnixInventor: Ryusuke Sasaki
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Patent number: 6937240Abstract: In the present invention, for an unprocessed joint, a joint index and a joint rotation angle are obtained (S25, S27). For the unprocessed vertex corresponding to the obtained joint index, a vertex index and a weight w for the vertex are obtained. On the basis of the weight w and the rotation angle in the current frame, coordinate values of the vertex buffer are changed. A quarternion q1 according to the joint rotation angle in the current frame and a unit quarternion are sphere-linear interpolated with the weight w. From the resultant quarternion q, a conversion matrix R is determined for the joint. An overall conversion matrix M is obtained as M=RJTB, where a matrix T represents a relative coordinates from a parent joint, a matrix J represents a basic rotation angle, and B denotes a conversion matrix of the parent joint.Type: GrantFiled: January 26, 2001Date of Patent: August 30, 2005Assignee: Square Enix Co., Ltd.Inventor: Ryusuke Sasaki
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Publication number: 20020167521Abstract: An unprocessed cluster index and its amount of parallel movement are acquired. The order of processing clusters does not matter as long as the frame is the same. Subsequently, with respect to an unprocessed vertex corresponding to this acquired cluster index, a vertex index and the weight w of this vertex are obtained. Then, according to the amount of parallel movement and weight w in the same frame, the values of coordinates of the vertex buffer are changed. Since the cluster transformation is effected by parallel movement here, the order of processing clusters does not matter, and it is thereby possible to calculate the vertex coordinates after transformation by simple multiplication and addition alone without matrix operations.Type: ApplicationFiled: January 26, 2001Publication date: November 14, 2002Applicant: SQUARE CO. LTD.Inventor: Ryusuke Sasaki
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Publication number: 20010019333Abstract: In the present invention, for an unprocessed joint, a joint index and a joint rotation angle are obtained (S25, S27). For the unprocessed vertex corresponding to the obtained joint index, a vertex index and a weight w for the vertex are obtained. On the basis of the weight w and the rotation angle in the current frame, coordinate values of the vertex buffer are changed. A quarternion q1 according to the joint rotation angle in the current frame and a unit quarternion are sphere-linear interpolated with the weight w. From the resultant quarternion q, a conversion matrix R is determined for the joint. An overall conversion matrix M is obtained as M=RJTB, where a matrix T represents a relative coordinates from a parent joint, a matrix J represents a basic rotation angle, and B denotes a conversion matrix of the parent joint.Type: ApplicationFiled: January 26, 2001Publication date: September 6, 2001Applicant: SQUARE CO. LTD.Inventor: Ryusuke Sasaki