Patents by Inventor Tomohiko Usui
Tomohiko Usui 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: 20200386274Abstract: A torque damper apparatus including an input plate, an intermediate plate, an output plate, and a spring member interposed between the intermediate plate and the output plate so that the torque transmitted from the intermediate plate to the output plate is reduced. The output plate includes a pair of plates arranged so as to separate from each other in an axial direction and a fastening part fastening the pair of plates. The spring member is a coiled spring arranged along a circumferential direction about the axial line, and the intermediate plate includes a holding portion holding an inner end of the spring member in a radial direction about the axial line, and a plate portion extended from the holding portion toward an inside in the radial direction between the pair of plates and supported rotatably relative to the fastening part.Type: ApplicationFiled: May 28, 2020Publication date: December 10, 2020Inventors: Tomohiko Usui, Yasuhiro Morimoto, Tetsuya Naito
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Publication number: 20200149041Abstract: The present invention relates to a guide RNA molecule that hybridizes with a target sequence containing a mutation site of a transforming growth factor ?-induced (TGFBI) gene associated with granular corneal degeneration.Type: ApplicationFiled: June 7, 2018Publication date: May 14, 2020Applicants: The University of Tokyo, National University Corporation Chiba UniversityInventors: Tomohiko Usui, Yukako Taketani, Yasuo Ouchi
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Patent number: 10435444Abstract: An object of the invention is to provide an agent for preventing or treating corneal disorders, such as corneal epithelial disorder, dry eye, and reduction in corneal sensitivity. This object is achieved by using angiopoietin-like protein 7 as an active ingredient.Type: GrantFiled: April 15, 2016Date of Patent: October 8, 2019Assignees: THE UNIVERSITY OF TOKYO, SENJU PHARMACEUTICAL CO., LTD.Inventors: Tomohiko Usui, Chiho Yabuta
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Publication number: 20180105563Abstract: An object of the invention is to provide an agent for preventing or treating corneal disorders, such as corneal epithelial disorder, dry eye, and reduction in corneal sensitivity. This object is achieved by using angiopoietin-like protein 7 as an active ingredient.Type: ApplicationFiled: April 15, 2016Publication date: April 19, 2018Applicants: The University of Tokyo, Senju Pharmaceutical Co., Ltd.Inventors: Tomohiko USUI, Chiho YABUTA
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Publication number: 20180099004Abstract: The present invention provides a single stranded nucleic acid molecule represented by the following formula (I): (I) (SEQ?ID?NO:?1) 5?-uagcaccauuugaaaucaguguucc-P- ggaacacugauuucaaauggugcuauu-3? wherein āPā shows a proline derivative linker represented by the following formula (Ia): an agent for treating corneal diseases such as ocular surface disorders and the like, comprising the single stranded nucleic acid molecule as an active ingredient.Type: ApplicationFiled: April 15, 2016Publication date: April 12, 2018Applicants: THE UNIVERSITY OF TOKYO, TOKYO MEDICAL UNIVERSITY, BONAC CORPORATIONInventors: Hirofumi TAKEUCHI, Tomohiko USUI, Masahiko KURODA, Masakatsu TAKANASHI, Shinichiro OHNO, Hidekazu TOYOFUKU, Kohei TAHARA, Risako ONODERA
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Patent number: 9927014Abstract: A stator of a torque converter is divided into a first stator on an upstream side and a second stator on a downstream side, and the first and second stators are supported on a fixed part via first and second one-way clutches, respectively. Since, with regard to a blade of the first stator, when viewed in the axis direction, the blade tip part is inclined relative to the blade base part in the disengagement direction of the first one-way clutch, it is possible to ensure the blade area without increasing the dimension in the radial direction and the dimension in the axis direction of the blade of the first stator, and it is possible, by smoothly guiding oil along the blade of the first stator to thus suppress the occurrence of a vortex, to reduce energy loss in a low speed ratio region where the vortex easily occurs.Type: GrantFiled: August 15, 2013Date of Patent: March 27, 2018Assignee: HONDA MOTOR CO., LTD.Inventors: Tomoya Okaji, Hiroya Abe, Tomohiko Usui, Yoshitaka Mishima
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Patent number: 9862407Abstract: An electric power steering apparatus includes a motor for applying assist torque to a vehicle steering mechanism and a controller, which controls driving of the motor to cause the assist torque to follow an assist command value. The controller calculates a basic assist command value based on steering torque applied to the steering mechanism and corrects the basic assist command value using a correction value, thereby setting the assist command value. If the steering torque has an absolute value greater than a threshold value when the vehicle is in a straight-line traveling state, the controller sets the correction value such that the absolute value of the steering torque is reduced. If the steering torque has an absolute value less than the threshold value when the vehicle is in a straight-line traveling state, the controller sets the correction value such that the absolute value of the assist command value is reduced.Type: GrantFiled: March 25, 2014Date of Patent: January 9, 2018Assignees: JTEKT CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Tetsuya Nozawa, Shinya Aono, Takayuki Ohta, Tomohiko Usui, Yuuichi Fukuyama, Takashi Sekiguchi
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Patent number: 9302705Abstract: A steering force controller has a first detection unit that detects a steering angular velocity of a vehicle, a second detection unit that detects a steering angle of the vehicle, a third detection unit that detects a vehicle speed of the vehicle, a main control matrix in which a first output value is set based on the steering angular velocity and the vehicle speed, a subsidiary control matrix in which a second output value is set based on the steering angle and the vehicle speed, a control quantity operation unit that obtains a control quantity for steering assistance by multiplying the first output value by the second output value and a steering assist force control unit that generates a steering assist force in a steering system based on the control quantity obtained by the control quantity operation unit.Type: GrantFiled: August 12, 2013Date of Patent: April 5, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Hiroyuki Togashi, Tomohiko Usui, Satoshi Miura, Kazuhisa Tadakuma
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Patent number: 9267591Abstract: Among first and second stators of a torque converter supported on a fixed part by a one-way clutch corresponding to the stators, the number of second stator blades of the second stator on the downstream side in the direction of flow of oils larger than the number of first blades of the first stator on the upstream side, and the maximum value t2 for blade thickness of the second stator blade is smaller than the minimum value t1 for blade thickness of the first stator blade. Therefore, it is possible to ensure that there is a sufficient gap (?) between a trailing edge of the first stator blade and a leading of the second stator blade, thus preventing the flow of oil from being stopped by the gap (?), and it is possible to align effectively the flow of oil by means of the second stator blades.Type: GrantFiled: June 20, 2012Date of Patent: February 23, 2016Assignees: HONDA MOTOR CO., LTD., YUTAKA GIKEN CO., LTD.Inventors: Tomoya Okaji, Hiroya Abe, Yoshitaka Mishima, Tomohiko Usui, Akira Kitajima, Tomohiko Tsuchiya
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Publication number: 20150219195Abstract: A stator of a torque converter is divided into a first stator on an upstream side and a second stator on a downstream side, and the first and second stators are supported on a fixed part via first and second one-way clutches, respectively. Since, with regard to a blade of the first stator, when viewed in the axis direction, the blade tip part is inclined relative to the blade base part in the disengagement direction of the first one-way clutch, it is possible to ensure the blade area without increasing the dimension in the radial direction and the dimension in the axis direction of the blade of the first stator, and it is possible, by smoothly guiding oil along the blade of the first stator to thus suppress the occurrence of a vortex, to reduce energy loss in a low speed ratio region where the vortex easily occurs.Type: ApplicationFiled: August 15, 2013Publication date: August 6, 2015Applicant: HONDA MOTOR CO., LTD.Inventors: Tomoya Okaji, Hiroya Abe, Tomohiko Usui, Yoshitaka Mishima
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Publication number: 20150203153Abstract: A steering force controller has a first detection unit that detects a steering angular velocity of a vehicle, a second detection unit that detects a steering angle of the vehicle, a third detection unit that detects a vehicle speed of the vehicle, a main control matrix in which a first output value is set based on the steering angular velocity and the vehicle speed, a subsidiary control matrix in which a second output value is set based on the steering angle and the vehicle speed, a control quantity operation unit that obtains a control quantity for steering assistance by multiplying the first output value by the second output value and a steering assist force control unit that generates a steering assist force in a steering system based on the control quantity obtained by the control quantity operation unit.Type: ApplicationFiled: August 12, 2013Publication date: July 23, 2015Applicant: Nissan Motor Co., Ltd.Inventors: Hiroyuki Togashi, Tomohiko Usui, Satoshi Miura, Kazuhisa Tadakuma
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Publication number: 20140297123Abstract: An electric power steering apparatus includes a motor for applying assist torque to a vehicle steering mechanism and a controller, which controls driving of the motor to cause the assist torque to follow an assist command value. The controller calculates a basic assist command value based on steering torque applied to the steering mechanism and corrects the basic assist command value using a correction value, thereby setting the assist command value. If the steering torque has an absolute value greater than a threshold value when the vehicle is in a straight-line traveling state, the controller sets the correction value such that the absolute value of the steering torque is reduced. If the steering torque has an absolute value less than the threshold value when the vehicle is in a straight-line traveling state, the controller sets the correction value such that the absolute value of the assist command value is reduced.Type: ApplicationFiled: March 25, 2014Publication date: October 2, 2014Inventors: Tetsuya NOZAWA, Shinya AONO, Takayuki OHTA, Tomohiko USUI, Yuuichi FUKUYAMA, Takashi SEKIGUCHI
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Publication number: 20140123637Abstract: Among first and second stators of a torque converter supported on a fixed part by a one-way clutch corresponding to the stators, the number of second stator blades of the second stator on the downstream side in the direction of flow of oil is larger than the number of first blades of the first stator on the upstream side, and the maximum value t2 for blade thickness of the second stator blade is smaller than the minimum value t1 for blade thickness of the first stator blade. Therefore, it is possible to ensure that there is a sufficient gap (?) between a trailing edge of the first stator blade and a leading edge of the second stator blade, thus preventing the flow of oil from being stopped by the gap (?), and it is possible to align effectively the flow of oil by means of the second stator blades.Type: ApplicationFiled: June 20, 2012Publication date: May 8, 2014Applicants: YUTAKA GIKEN CO., LTD., HONDA MOTOR CO., LTD.Inventors: Tomoya Okaji, Hiroya Abe, Yoshitaka Mishima, Tomohiko Usui, Akira Kitajima, Tomohiko Tsuchiya