Patents by Inventor Yoshifumi Nakamura

Yoshifumi Nakamura 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).

  • Patent number: 11152465
    Abstract: A semiconductor device includes an n-type base substrate; a p-type first region; a p-type surface region having a plurality of second corner portions and a plurality of second side portions surrounding the first region. The p-type surface region has a dopant concentration lower than a dopant concentration of the first region. The semiconductor device further includes a field plate in a region overlapping with the surface region in a plan view by way of an insulation film. The field plate has a plurality of field plate corner portions and a plurality of field plate side portions. A relationship of L1>L2 is established at least at a portion of the surface region or a relationship of FP1>FP2 is established at least at a portion of the field plate is satisfied. A withstand voltage of the second side portion is lower than a withstand voltage of the second corner portion.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 19, 2021
    Assignee: SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Hideyuki Nakamura, Yoshifumi Matsuzaki, Hirokazu Ito
  • Patent number: 11148683
    Abstract: A vehicle control system includes an operation detector configured to detect that an operation element has been operated by an occupant, an automated driving controller configured to execute automated driving control, a switching controller configured to switch a driving mode to one of a plurality of driving modes including a first driving assistance mode and a second driving assistance mode, and an output controller configured to cause an information outputter to output prescribed information when the driving mode is switched from the second driving assistance mode to the first driving assistance mode. The switching controller continues the second driving assistance mode until it is detected that the operation element has been operated after the prescribed information is output and switches the driving mode to the first driving assistance mode by cancelling the second driving assistance mode when it is detected that the operation element has been operated.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: October 19, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Toshiyuki Kaji, Yoshifumi Nakamura
  • Patent number: 11142882
    Abstract: To provide a small hydraulic excavator, which even may have an upperstructure formed such that at least its rear end swings within a body width range and having a limited installation space for devices, that allows an accumulator to be disposed and allows the accumulator to be protected from external force generated during work. The present invention relates to a rear small-swing type mini excavator that includes an accumulator 30 accommodating and recovering potential energy and hydraulic energy used by at least one of drives of an undercarriage 1, an upperstructure 2 formed such that its rear end swings within the body width range of the undercarriage 1, and a working device 3.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: October 12, 2021
    Assignee: Hitachi Construction Machinery Tierra Co., Ltd
    Inventors: Yoshifumi Takebayashi, Hajime Yoshida, Kazushige Mori, Natsuki Nakamura, Taihei Maehara
  • Publication number: 20210284164
    Abstract: A vehicle control apparatus for controlling a vehicle based on peripheral information of the vehicle, the apparatus comprising: a control unit configured to control steering and acceleration/deceleration of the vehicle in a first state in which holding of a steering apparatus of the vehicle by a driver is required or a second state in which holding of the steering apparatus is not required, wherein the control unit transitions a state of the vehicle from the second state to the first state, if input of an intervention operation for acceleration/deceleration by the driver is detected in a case of executing course change of the vehicle, when the vehicle is traveling in the second state.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 16, 2021
    Inventors: Nozomu HIROSAWA, Daichi KATO, Takuma KOBAYASHI, Yoshifumi NAKAMURA
  • Publication number: 20210276560
    Abstract: A vehicle control device includes an external environment recognition unit that recognizes a situation of a surrounding periphery of a user's own vehicle, and a lane change control unit that executes an automatic lane change by controlling a travel speed and steering of the user's own vehicle based on a recognition result of the external environment recognition unit. The automatic lane change includes a first lane change (third mode) which is executed regardless of an intention of a driver, and a second lane change (first mode) which is executed in accordance with the intention of the driver. In the case that a request to make the second lane change is detected during execution of the first lane change, the lane change control unit switches the automatic lane change to be executed from the first lane change to the second lane change.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 9, 2021
    Inventors: Nozomu HIROSAWA, Yoshifumi NAKAMURA, Takuma KOBAYASHI
  • Publication number: 20210276580
    Abstract: A vehicle control apparatus, which controls a vehicle having a plurality of driving modes, includes a travel control section that performs travel control of the vehicle based on vicinity information; a limit value determining section that determines a deceleration limit value used when the travel control is performed, according to the driving mode; and a braking control section that performs braking control based on the vicinity information, such that the vehicle decelerates with a deceleration that does not exceed the determined deceleration limit value; wherein the limit value determining section sets the deceleration limit value to a first limit value when the vehicle is driven in a first driving mode, and sets the deceleration limit value to a second limit value higher than the first limit value, when the vehicle is driven in a second driving mode that has a higher degree of automation than the first driving mode.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Inventors: Takuya TOBE, Yoshifumi NAKAMURA, Shinya UNO, Kentaro ISHISAKA, Ayumu HORIBA
  • Patent number: 11111650
    Abstract: When a swing motor and a boom cylinder are driven simultaneously, a hydraulic drive system appropriately adjusts a distribution of torques between hydraulic pumps and feeds back a torque actually consumed by the hydraulic pump for actuating the swing motor accurately to the hydraulic pump for actuating the boom cylinder. To that end, when boom raising and swinging are performed simultaneously, the hydraulic drive system corrects an allowable torque of a hydraulic pump 302 that supplies a hydraulic fluid to a swing motor 3c so as to be lowered by a certain ratio, reducing allowable torques of hydraulic pumps 102 and 202 that supply a hydraulic fluid to a boom cylinder 3a by torques consumed by the hydraulic pumps 102 and 202 that supply a hydraulic fluid to the swing motor 3c.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: September 7, 2021
    Assignee: Hitachi Construction Machinery Tierra Co. Ltd.
    Inventors: Kiwamu Takahashi, Taihei Maehara, Takeshi Ishii, Yoshifumi Takebayashi, Natsuki Nakamura, Daisuke Oka
  • Patent number: 11106204
    Abstract: A vehicle control device is equipped with a state control unit adapted to perform a state transition control in which there are combined plural types of travel states in accordance with a travel control mode, and plural types of assist states in accordance with a driving assist mode. Under a sports mode (second travel state) in which a preference of the driver for manual driving is strong, as compared with a normal travel mode (first travel state), the state control unit suppresses a transition from a manual driving state (first assist state) to a normal automated driving state (second assist state) in which a level of driving assistance is high.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 31, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Toshiyuki Kaji, Yoshifumi Nakamura
  • Publication number: 20210237753
    Abstract: A vehicle control apparatus that controls a vehicle based on peripheral information of the vehicle, comprising: a first operator used to start first travel control; a second operator used to resume the first travel control after the first travel control has been terminated; a third operator used to further start second travel control during the first travel control; and a control unit configured to, while the first travel control and the second travel control are active, if the first travel control and the second travel control are terminated based on the same condition or the same timing, resume the first travel control and the second travel control in accordance with an operation of the second operator.
    Type: Application
    Filed: January 22, 2021
    Publication date: August 5, 2021
    Inventors: Takuma KOBAYASHI, Yoshifumi NAKAMURA
  • Publication number: 20210221425
    Abstract: A control apparatus of a vehicle including a steering operator is provided. The control apparatus includes an environment detection unit configured to detect a surrounding environment of the vehicle, a travel control unit configured to execute automatic steering control based on the surrounding environment, and an operation detection unit configured to detect a first operation and a second operation by a driver. The travel control unit can take a first state in which automatic steering control is not performed, a second state in which automatic steering control is performed on condition of the second operation, and a third state in which automatic steering control is performed without condition of the second operation. The travel control unit transitions from the third state to the first state on condition of the first operation.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 22, 2021
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Takuma Kobayashi, Yoshifumi Nakamura
  • Publication number: 20210173406
    Abstract: A vehicle control system includes a control device configured to execute specific automatic driving control; an image capturing device configured to capture a surrounding image of a vehicle; a display device configured to display the surrounding image; and a recording device configured to record the surrounding image. The control device includes: a first determining unit configured to determine whether the vehicle is present on a road where the specific automatic driving control is executable; and a second determining unit configured to determine whether a request to display the surrounding image is present. In a case where the first determining unit determines that the vehicle is present on the road where the specific automatic driving control is executable and the second determining unit determines that the request to display the surrounding image is absent, the recording device records the surrounding image.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Takashi KISHIMOTO, Yoshifumi NAKAMURA, Noriyuki IMAEDA, Jun ISHII, Daiki HIGUCHI
  • Publication number: 20210174610
    Abstract: A vehicle control system includes: a vehicle sensor configured to detect a vehicle state; a first control device connected to the vehicle sensor and provided with a first recording area; a first power supply device configured to supply electric power to the first control device; a second control device connected to the first control device and provided with a second recording area; and a second power supply device configured to supply electric power to the second control device. The first control device is configured to record vehicle data including the vehicle state in the first recording area at a prescribed timing and to transmit the vehicle data to the second control device on a prescribed cycle. The second control device is configured to record the vehicle data received from the first control device in the second recording area at a prescribed timing.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Takashi KISHIMOTO, Noriyuki IMAEDA, Yoshifumi NAKAMURA, Jun ISHII, Daiki HIGUCHI
  • Publication number: 20210171059
    Abstract: A vehicle control system includes a recording device configured to record vehicle information in files. The recording device includes: an event information receiving unit configured to receive information about prescribed events; a tag providing unit configured to provide protection tags to the files, the protection tags being of different types according to magnitude of the events; and an overwriting setting unit configured to prohibit overwriting of the files provided with the protection tags of a same type in a case where the number of the files provided with the protection tags of the same type is within a prescribed upper limit number, and to permit the overwriting of the files provided with the protection tags of the same type in a case where the number of the files provided with the protection tags of the same type exceeds the upper limit number.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Takashi KISHIMOTO, Yoshifumi NAKAMURA, Noriyuki IMAEDA, Daiki HIGUCHI, Jun ISHII
  • Publication number: 20210170948
    Abstract: A vehicle control system includes a control device configured to execute automatic driving control of a vehicle; an image capturing device configured to capture a surrounding image of the vehicle; and a recording device configured to record the surrounding image. The control device includes: a function classifying unit configured to classify functions of the automatic driving control into a first automatic driving function and a second automatic driving function; a state determining unit configured to determine whether the recording device is in a recordable state; and a function restricting unit configured to permit use of the first automatic driving function in a case where the state determining unit determines that the recording device is in the recordable state, and to prohibit the use of the first automatic driving function in a case where the state determining unit determines that the recording device is not in the recordable state.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Takashi KISHIMOTO, Yoshifumi NAKAMURA, Noriyuki IMAEDA, Jun ISHII, Daiki HIGUCHI
  • Publication number: 20210146954
    Abstract: A vehicle control system includes an operation detector configured to detect that an operation element has been operated by an occupant, an automated driving controller configured to execute automated driving control, a switching controller configured to switch a driving mode to one of a plurality of driving modes including a first driving assistance mode and a second driving assistance mode, and an output controller configured to cause an information outputter to output prescribed information when the driving mode is switched from the second driving assistance mode to the first driving assistance mode. The switching controller continues the second driving assistance mode until it is detected that the operation element has been operated after the prescribed information is output and switches the driving mode to the first driving assistance mode by cancelling the second driving assistance mode when it is detected that the operation element has been operated.
    Type: Application
    Filed: May 23, 2018
    Publication date: May 20, 2021
    Inventors: Toshiyuki Kaji, Yoshifumi Nakamura
  • Publication number: 20210146962
    Abstract: A vehicle control system includes a direction detector configured to detect a direction of a face or line of sight of an occupant of a host vehicle; an automated driving controller configured to execute automated driving; and a switching controller configured to switch an automated driving mode executed by the automated driving controller to any one of a plurality of automated driving modes including a first automated driving mode in which a predetermined task is required of the occupant or a predetermined automation rate is set and a second automated driving mode in which a level of the task required of the occupant is lower than in the first automated driving mode or an automation rate is lower than in the first automated driving mode, wherein the switching controller includes the direction detected by the direction detector being a predetermined direction in switching conditions for switching from the second automated driving mode to the first automated driving mode.
    Type: Application
    Filed: June 2, 2017
    Publication date: May 20, 2021
    Inventors: Toshiyuki Kaji, Yoshifumi Nakamura
  • Publication number: 20210041688
    Abstract: A scanning optical device includes a scanning lens, a deflector, and a frame configured to support the scanning lens and the deflector. The deflector includes a substrate, a motor fixed to the substrate, and a polygonal mirror rotary driven by the motor. The scanning lens is arranged such that a longitudinal direction thereof is oriented in a main scanning direction of the deflector. The frame includes a supporting part configured to support the scanning lens. The supporting part is located such that the substrate and at least a portion of the supporting part overlap when viewed in a rotation axis direction of the motor.
    Type: Application
    Filed: July 21, 2020
    Publication date: February 11, 2021
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Kazuhiro Hayakawa, Hitoshi Fujino, Yoshifumi Nakamura
  • Publication number: 20200331458
    Abstract: A vehicle control system includes: a recognizer (130) configured to recognize a surrounding situation of a vehicle; a vehicle controller (120 and 160) configured to perform driving support to control one or both of steering and a deceleration or acceleration of the vehicle based on the surrounding situation recognized by the recognizer; a vigilance estimator (184) configured to estimate vigilance of a driver in the vehicle based on a detection result from a detector provided in the vehicle; and a task determiner (186) configured to determine a task requested of the driver while the driving support is performed by the vehicle controller and configured to raise a load of the task requested of the driver when the vigilance of the driver estimated by the vigilance estimator is lowered.
    Type: Application
    Filed: December 28, 2017
    Publication date: October 22, 2020
    Inventors: Yoshifumi Nakamura, Toshiyuki Kaji
  • Patent number: 10761532
    Abstract: A vehicle control system includes a first detection unit configured to detect a direction of a face or a line of sight of an occupant of a subject vehicle, an automatic driving control unit configured to execute an automatic driving control, and a switching control unit configured to switch an automatic driving mode for causing the automatic driving control unit to execute the automatic driving control to one of a plurality of automatic driving modes including a first automatic driving mode and a second automatic driving mode. The switching control unit prevents the automatic driving control executed by the automatic driving control unit on the basis of a detection result by the first detection unit.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: September 1, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yoshifumi Nakamura, Toshiyuki Kaji
  • Patent number: 10642185
    Abstract: A scanning exposure device including: a first and a second light sources emitting a first and second beam, respectively; a polygon mirror having reflecting surfaces; a first and a second optical sensors detecting the first and the second beam, respectively; and a controller storing first writing time until which an exposure by the first beam starts after the first beam is detected and second writing time until which an exposure by the second beam starts after the first beam is detected, for respective reference surface identifiers specifying the respective reflecting surfaces, and the controller acquires a first timing at which the first beam is detected and a second timing at which the second beam is detected for the respective reflecting surfaces identified by respective acquisition surface identifiers; and specifies a correspondence relation between the respective reference surface identifiers and the respective acquisition surface identifiers.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 5, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Michihiro Shimadu, Shunsuke Hachiya, Yoshifumi Nakamura