Patents by Inventor Yasuhiro Sakurai

Yasuhiro Sakurai 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: 20240321341
    Abstract: A storage device includes a memory cell array, an input/output circuit, and a logic circuit. The input/output circuit including an input/output signal line through which data to be written into the memory cell array is received and data read from the memory cell array is transmitted. The logic circuit is configured to output a first signal to the input/output circuit. The first signal at an active level enables at least a part of the input/output circuit. The logic circuit includes a latch circuit configured to output a second signal at a level corresponding to a value of latched data. The logic circuit receives third, fourth, and fifth signals from an outside of the storage device via the input/output circuit. The logic circuit outputs a negative logical product of the third signal and a logical sum of at least the second, fourth, and fifth signals as the first signal.
    Type: Application
    Filed: March 1, 2024
    Publication date: September 26, 2024
    Inventors: Katsuaki SAKURAI, Daisuke ARIZONO, Mitsuhiro ABE, Yasuhiro HIRASHIMA
  • Publication number: 20240262314
    Abstract: A vehicle control method and a vehicle control device are configured to control the movement of a vehicle based on operation of a terminal device located outside the vehicle. The vehicle receives from the terminal device a first signal indicating that a first button of the terminal device has been pressed. The vehicle doors are unlocked based on the reception of the first signal, and the vehicle is placed in a state in which movement control is permitted.
    Type: Application
    Filed: May 28, 2021
    Publication date: August 8, 2024
    Inventors: Junya KOBAYASHI, Yasuhiro SAKURAI, Yasuhiro SUZUKI, Yoshitsugu TAKAFUJI
  • Patent number: 12024225
    Abstract: A steering control device is configured to acquire a distance from a vehicle to obstacles detected by a distance detection sensor. The steering control device calculates a first target steering angle such that a steering angle increases for moving the vehicle in a direction away from the obstacle located on a left side with respect to a traveling direction as the vehicle travels as the distance to the obstacle decreases, and calculates a second target steering angle such that a steering angle increases for moving the vehicle in a direction away from the obstacle located on a right side with respect to the traveling direction as the vehicle travels as the distance to the obstacle decreases. Then, the steering control device adds the first and second target steering angles to calculate a final steering angle, and control the steered wheels of the vehicle based on the final steering angle.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: July 2, 2024
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Junya Kobayashi, Teruhisa Takano, Yasuhiro Sakurai, Ryota Yamanaka, Yoshitsugu Takafuji
  • Patent number: 11886185
    Abstract: The relative position between a vehicle and an extension unit located outside the vehicle is detected, and a command touch operation for operating the vehicle with a remote operation device is set in accordance with the detected relative position. The touch operation of an operator is detected by a touch panel of the remote operation device, and a determination is made as to whether or not the detected touch operation is the command touch operation. When the touch operation is the command touch operation, the vehicle is controlled to execute autonomous travel control. The vehicle has an autonomous travel control function.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: January 30, 2024
    Assignees: Nissan Motor Co., Ltd., Renault S.A.S.
    Inventors: Yasuhiro Suzuki, Junya Kobayashi, Yasuhiro Sakurai, Ryota Yamanaka
  • Patent number: 11772634
    Abstract: A parking control method executes a control instruction for moving a vehicle along a parking route. The parking route is calculated based on an operation command acquired from an operator located outside the vehicle. The parking control method includes detecting a relative altitude between a first height position of the operator and a second height position of the vehicle and when determining that the relative altitude is not less than a first predetermined value, changing a first speed to a second speed lower than the first speed. The first speed is preliminarily set in the control instruction. The parking control method further includes moving the vehicle in accordance with the control instruction changed.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: October 3, 2023
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Daisuke Tanaka, Yasuhiro Sakurai, Yasuhiro Suzuki
  • Publication number: 20220350326
    Abstract: The relative position between a vehicle and an extension unit located outside the vehicle is detected, and a command touch operation for operating the vehicle with a remote operation device is set in accordance with the detected relative position. The touch operation of an operator is detected by a touch panel of the remote operation device, and a determination is made as to whether or not the detected touch operation is the command touch operation. When the touch operation is the command touch operation, the vehicle is controlled to execute autonomous travel control. The vehicle has an autonomous travel control function.
    Type: Application
    Filed: September 9, 2019
    Publication date: November 3, 2022
    Inventors: Yasuhiro Suzuki, Junya Kobayashi, Yasuhiro Sakurai, Ryota Yamanaka
  • Patent number: 11485354
    Abstract: A parking control method calculates a first control instruction and causing a control device of a vehicle to execute the first control instruction on the basis of an operation command acquired from an operator. The first control instruction is for moving the vehicle along a first route to a target parking space. The parking control method includes: when detecting an object after start of execution of the first control instruction, presenting the operator with selection information for selecting a first mode in which the execution of the first control instruction is continued or a second mode in which the control device of the vehicle is caused to execute an alternative control instruction for moving the vehicle along an alternative route different from the first route; and causing the control device to execute the first control instruction or the alternative control instruction in accordance with selection input information from the operator.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: November 1, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Yasuhiro Sakurai, Yasuhiro Suzuki
  • Patent number: 11434542
    Abstract: A high-carbon hot-rolled steel sheet has a composition containing, on a percent by mass basis, C: 0.10% or more and less than 0.20%, Si: 0.5% or less, Mn: 0.25% to 0.65%, P: 0.03% or less, S: 0.010% or less, sol. Al: 0.10% or less, N: 0.0065% or less, Cr: 0.05% to 0.50%, and B: 0.0005% to 0.005%, the balance being Fe and incidental impurities, the high-carbon hot-rolled steel sheet having a microstructure containing ferrite and cementite, in which the percentage of the number of cementite grains having an equivalent circular diameter of 0.1 ?m or less is 12% or less based on the total number of cementite grains, the amount of Cr dissolved in the steel sheet is 0.03% to 0.50%, and the high-carbon hot-rolled steel sheet has a hardness of 73 or less in terms of HRB and a total elongation of 37% or more.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: September 6, 2022
    Assignee: JFE Steel Corporation
    Inventors: Yuka Miyamoto, Takashi Kobayashi, Yasuhiro Sakurai, Takeshi Yokota
  • Patent number: 11359267
    Abstract: Provided are a high-carbon hot-rolled steel sheet with excellent formability and hardenability and a method for manufacturing the same. The high-carbon hot-rolled steel sheet has a composition containing, on a mass basis, C: 0.10% to 0.33%, Si: 0.15% to 0.35%, Mn: 0.5% to 0.9%, P: 0.03% or less, S: 0.010% or less, sol. Al: 0.10% or less, N: 0.0065% or less, and Cr: 0.90% to 1.5%, the remainder being Fe and inevitable impurities, has a microstructure containing ferrite and cementite, a cementite density being 0.25 grains/?m2 or less, and has a hardness of 110 HV to 160 HV and a total elongation of 40% or more.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 14, 2022
    Assignee: JFE Steel Corporation
    Inventors: Yuka Miyamoto, Yasuhiro Sakurai, Takashi Kobayashi, Shunsuke Toyoda
  • Publication number: 20220170126
    Abstract: A high-carbon hot-rolled steel sheet and a method for manufacturing the steel sheet are provided. The high-carbon hot-rolled steel sheet has a particular chemical composition. The microstructure of the steel sheet includes ferrite, cementite, and pearlite that accounts for 6.5% or less of the entire microstructure by area fraction. The proportion of the number of cementite grains having an equivalent circle diameter of 0.1 ?m or less to the total number of cementite grains is 20% or less, the average cementite grain size is 2.5 ?m or less, and the cementite accounts for 3.5% or more and 10.0% or less of the entire microstructure by area fraction. The average concentration of solute B in a region extending from a surface layer to a depth of 100 ?m is 10 mass ppm or more. The average concentration of N present as AlN in the region is 70 mass ppm or less.
    Type: Application
    Filed: January 14, 2020
    Publication date: June 2, 2022
    Applicant: JFE Steel Corporation
    Inventors: Yuka Miyamoto, Yasuhiro Sakurai, Yoshihiko Ono
  • Patent number: 11305757
    Abstract: A method performs autonomous travel control of a subject vehicle to a target stop position on the basis of a remote operation command from a remote operation device. The subject vehicle has an autonomous travel control function and an automatic locking/unlocking function for a vehicle door. The autonomous travel control is executed under a precondition that a locking/unlocking device for the door is unlocked. The method includes prohibiting the automatic locking/unlocking function from locking the door while the vehicle is executing autonomous travel control; detecting a distance between the vehicle and the remote operation device when the vehicle stops at the target stop; setting a temporal interval from when the vehicle stops until the locking/unlocking device for the door is locked using the automatic locking/unlocking function to a temporal interval in accordance with the distance; and locking the door using the automatic locking/unlocking function when the temporal interval has elapsed.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: April 19, 2022
    Assignees: Nissan Motor Co., Ltd., Renault S.A.S.
    Inventors: Yasuhisa Hayakawa, Yasuhiro Sakurai, Yasuhiro Suzuki, Junichi Kuwabara
  • Publication number: 20220106663
    Abstract: A high-carbon hot-rolled steel sheet and a method for manufacturing the steel sheet are provided. The high-carbon hot-rolled steel sheet has a particular chemical composition. The microstructure of the steel sheet includes ferrite, cementite, and pearlite that accounts for 6.5% or less of the entire microstructure by area fraction. The proportion of the number of cementite grains having an equivalent circle diameter of 0.1 ?m or less to the total number of cementite grains is 20% or less, the average cementite grain size is 2.5 ?m or less, and the cementite accounts for 1.0% or more and less than 3.5% of the entire microstructure by area fraction. The average concentration of solute B in a region extending from a surface layer to a depth of 100 ?m is 10 mass ppm or more. The average concentration of N present as AlN in the region is 70 mass ppm or less.
    Type: Application
    Filed: January 14, 2020
    Publication date: April 7, 2022
    Applicant: JFE Steel Corporation
    Inventors: Yuka Miyamoto, Yasuhiro Sakurai, Yoshihiko Ono
  • Patent number: 11292440
    Abstract: An automatic parking control device includes an automatic parking controller that carries out automatic parking control, and a park-by-wire controller in which a park lock is automatically engaged when automatic parking is completed at a target stopping position by the automatic parking control. The park-by-wire controller determines whether a system abnormality would occur, in which the park-by-wire system does not operate normally during the automatic parking control. The automatic parking controller prohibits the starting of the automatic parking control upon determining that the system abnormality would occur before the automatic parking control is started.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: April 5, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kenji Koshiba, Hidemitsu Nakagawara, Hisahiro Nabeshima, Yasuhiro Sakurai
  • Patent number: 11242048
    Abstract: In a parking assistance method of a parking control device which executes parking control with respect to a free parking space surroundings a host vehicle, a first frame line of free parking space in a direction orthogonal to a vehicle width direction and a second frame line which forms a pair with the first frame line are detected, and a parking target is set on a straight line connecting between a point on the first frame line and a point on the second frame line, for example, the parking target is set on the straight line connecting between an end on the first frame line and an end on the second frame line, and parking control is executed so that a position of wheels of the host vehicle is matched with the parking target.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: February 8, 2022
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiro Suzuki, Ko Sato, Daisuke Tanaka, Yasuhiro Sakurai, Ryota Yamanaka, Junya Kobayashi
  • Publication number: 20220024449
    Abstract: A method performs autonomous travel control of a subject vehicle to a target stop position on the basis of a remote operation command from a remote operation device. The subject vehicle has an autonomous travel control function and an automatic locking/unlocking function for a vehicle door. The autonomous travel control is executed under a precondition that a locking/unlocking device for the door is unlocked. The method includes prohibiting the automatic locking/unlocking function from locking the door while the vehicle is executing autonomous travel control; detecting a distance between the vehicle and the remote operation device when the vehicle stops at the target stop; setting a temporal interval from when the vehicle stops until the locking/unlocking device for the door is locked using the automatic locking/unlocking function to a temporal interval in accordance with the distance; and locking the door using the automatic locking/unlocking function when the temporal interval has elapsed.
    Type: Application
    Filed: December 11, 2018
    Publication date: January 27, 2022
    Inventors: Yasuhisa Hayakawa, Yasuhiro Sakurai, Yasuhiro Suzuki, Junichi Kuwabara
  • Publication number: 20210253090
    Abstract: A parking control method executes a control instruction for moving a vehicle along a parking route. The parking route is calculated based on an operation command acquired from an operator located outside the vehicle. The parking control method includes detecting a relative altitude between a first height position of the operator and a second height position of the vehicle and when determining that the relative altitude is not less than a first predetermined value, changing a first speed to a second speed lower than the first speed. The first speed is preliminarily set in the control instruction. The parking control method further includes moving the vehicle in accordance with the control instruction changed.
    Type: Application
    Filed: October 27, 2017
    Publication date: August 19, 2021
    Inventors: Yasuhisa Hayakawa, Daisuke Tanaka, Yasuhiro Sakurai, Yasuhiro Suzuki
  • Patent number: 11027725
    Abstract: A self position estimation method is provided which is capable of accurately estimating, when executing automatic parking to a parking target position using a stored surrounding situation, a position of a host vehicle or a target in the surrounding situation stored in a storage device. The method includes a step that presents the stored surrounding situation, a step that receives an operation of setting a positional relationship between the stored surrounding situation, and at least one of the host vehicle and the targets existing around the host vehicle, and a step that sets a position of at least one of the host vehicle and the target in the stored surrounding situation based on the operation.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: June 8, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Ichiro Yamaguchi, Yasuhiro Sakurai, Daisuke Tanaka, Yukinori Nishida
  • Publication number: 20210054477
    Abstract: A high-carbon hot-rolled steel sheet has a composition containing, on a percent by mass basis, C: 0.10% or more and less than 0.20%, Si: 0.5% or less, Mn: 0.25% to 0.65%, P: 0.03% or less, S: 0.010% or less, sol. Al: 0.10% or less, N: 0.0065% or less, Cr: 0.05% to 0.50%, and B: 0.0005% to 0.005%, the balance being Fe and incidental impurities, the high-carbon hot-rolled steel sheet having a microstructure containing ferrite and cementite, in which the percentage of the number of cementite grains having an equivalent circular diameter of 0.1 ?m or less is 12% or less based on the total number of cementite grains, the amount of Cr dissolved in the steel sheet is 0.03% to 0.50%, and the high-carbon hot-rolled steel sheet has a hardness of 73 or less in terms of HRB and a total elongation of 37% or more.
    Type: Application
    Filed: January 22, 2019
    Publication date: February 25, 2021
    Applicant: JFE Steel Corporation
    Inventors: Yuka Miyamoto, Takashi Kobayashi, Yasuhiro Sakurai, Takeshi Yokota
  • Patent number: 10926701
    Abstract: A parking assistance device includes: a surrounding-image generation circuit that generates a surrounding image that is a view of surroundings of a mobile object from above; an image display circuit that displays an assistance image at a position of an empty parking space in the surrounding image, the first assistance image indicating the empty parking space; and a turning determination circuit that determines whether the mobile object is turning. In a case where it is determined by the turning determination circuit that the mobile object is turning, the image display circuit prohibits the assistance image from being displayed.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: February 23, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiro Suzuki, Ko Sato, Daisuke Tanaka, Yasuhiro Sakurai, Ryota Yamanaka, Junya Kobayashi
  • Patent number: 10899343
    Abstract: A parking assistance method of a parking assistance device for generating a peripheral image indicating a periphery of a vehicle as viewed from above to detect an unoccupied parking space, and displaying, on the peripheral image, an assistance image indicating that the detected unoccupied parking space is an available parking space, determines whether the vehicle intrudes on the unoccupied parking space. The parking assistance method inhibits the assistance image from being displayed on the unoccupied parking space on which the vehicle is determined to intrude in the peripheral image.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 26, 2021
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiro Suzuki, Ko Sato, Daisuke Tanaka, Yasuhiro Sakurai, Ryota Yamanaka, Junya Kobayashi