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).

  • Publication number: 20200386274
    Abstract: 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: Application
    Filed: May 28, 2020
    Publication date: December 10, 2020
    Inventors: Tomohiko Usui, Yasuhiro Morimoto, Tetsuya Naito
  • Publication number: 20200149041
    Abstract: 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: Application
    Filed: June 7, 2018
    Publication date: May 14, 2020
    Applicants: The University of Tokyo, National University Corporation Chiba University
    Inventors: Tomohiko Usui, Yukako Taketani, Yasuo Ouchi
  • Patent number: 10435444
    Abstract: 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: Grant
    Filed: April 15, 2016
    Date of Patent: October 8, 2019
    Assignees: THE UNIVERSITY OF TOKYO, SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Tomohiko Usui, Chiho Yabuta
  • Publication number: 20180105563
    Abstract: 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: Application
    Filed: April 15, 2016
    Publication date: April 19, 2018
    Applicants: The University of Tokyo, Senju Pharmaceutical Co., Ltd.
    Inventors: Tomohiko USUI, Chiho YABUTA
  • Publication number: 20180099004
    Abstract: 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 ā€”Pā€” 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: Application
    Filed: April 15, 2016
    Publication date: April 12, 2018
    Applicants: THE UNIVERSITY OF TOKYO, TOKYO MEDICAL UNIVERSITY, BONAC CORPORATION
    Inventors: Hirofumi TAKEUCHI, Tomohiko USUI, Masahiko KURODA, Masakatsu TAKANASHI, Shinichiro OHNO, Hidekazu TOYOFUKU, Kohei TAHARA, Risako ONODERA
  • Patent number: 9927014
    Abstract: 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: Grant
    Filed: August 15, 2013
    Date of Patent: March 27, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tomoya Okaji, Hiroya Abe, Tomohiko Usui, Yoshitaka Mishima
  • Patent number: 9862407
    Abstract: 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: Grant
    Filed: March 25, 2014
    Date of Patent: January 9, 2018
    Assignees: JTEKT CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Tetsuya Nozawa, Shinya Aono, Takayuki Ohta, Tomohiko Usui, Yuuichi Fukuyama, Takashi Sekiguchi
  • Patent number: 9302705
    Abstract: 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: Grant
    Filed: August 12, 2013
    Date of Patent: April 5, 2016
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroyuki Togashi, Tomohiko Usui, Satoshi Miura, Kazuhisa Tadakuma
  • Patent number: 9267591
    Abstract: 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: Grant
    Filed: June 20, 2012
    Date of Patent: February 23, 2016
    Assignees: HONDA MOTOR CO., LTD., YUTAKA GIKEN CO., LTD.
    Inventors: Tomoya Okaji, Hiroya Abe, Yoshitaka Mishima, Tomohiko Usui, Akira Kitajima, Tomohiko Tsuchiya
  • Publication number: 20150219195
    Abstract: 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: Application
    Filed: August 15, 2013
    Publication date: August 6, 2015
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tomoya Okaji, Hiroya Abe, Tomohiko Usui, Yoshitaka Mishima
  • Publication number: 20150203153
    Abstract: 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: Application
    Filed: August 12, 2013
    Publication date: July 23, 2015
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Hiroyuki Togashi, Tomohiko Usui, Satoshi Miura, Kazuhisa Tadakuma
  • Publication number: 20140297123
    Abstract: 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: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Inventors: Tetsuya NOZAWA, Shinya AONO, Takayuki OHTA, Tomohiko USUI, Yuuichi FUKUYAMA, Takashi SEKIGUCHI
  • Publication number: 20140123637
    Abstract: 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: Application
    Filed: June 20, 2012
    Publication date: May 8, 2014
    Applicants: YUTAKA GIKEN CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Tomoya Okaji, Hiroya Abe, Yoshitaka Mishima, Tomohiko Usui, Akira Kitajima, Tomohiko Tsuchiya