Patents by Inventor Masaya Endo

Masaya Endo 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: 20190210598
    Abstract: This vehicle driving support device includes: a state acquisition device configured to acquire a detection result from a state detector configured to detect a travel state and a steering state of a vehicle; a target path information acquisition device configured to acquire target path information indicating a path on which the vehicle is to travel; a prediction device configured to predict a deviation of a position of the vehicle from the target path information, and a twist amount of the steering shaft; and a calculator configured to calculate a target amount of a steering controller configured to control the motor based on the deviation of the position of the vehicle from the target path information and the twist amount of the steering shaft so as to reduce the twist amount of the steering shaft.
    Type: Application
    Filed: June 21, 2016
    Publication date: July 11, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Masaya ENDO
  • Patent number: 10343715
    Abstract: When an adjustment information input unit (1) acquires one of information of a feeling value and steering control information, a steering control information calculation unit (2) calculates data of a control characteristic graph visually representing control characteristics of steering using the acquired information. An adjustment information display unit (3) displays, on the same screen, a control characteristic graph in accordance with the data of the control characteristic graph and a feeling value operation section visually showing the feeling value.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: July 9, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Reiko Sakata, Yoshimichi Umeki, Tsutomu Matsubara, Yoshiki Ono, Hiroaki Kitano, Masaya Endo
  • Publication number: 20190194381
    Abstract: A thermosetting resin composition which produces no free isocyanate even when a carbodiimide compound is used and provides a cured resin having high heat resistance. The thermosetting resin composition makes it possible to reduce the curing temperature, cures in a short time and provides a cured rein having a high glass transition temperature.
    Type: Application
    Filed: March 5, 2019
    Publication date: June 27, 2019
    Applicant: TEIJIN LIMITED
    Inventors: Shinichiro SHOJI, Kouhei Endo, Masaya Shibano
  • Publication number: 20190165662
    Abstract: A thin linear vibration motor that suppresses the occurrence of operating noise. A linear vibration motor has a stationary element; a movable element that is supported elastically, so as to enable vibration along an axial direction, on the stationary element; and a driving portion causing the movable element to undergo reciprocating vibration along the axial direction, through the provision of a coil on the stationary element, the provision of a driving magnet on the movable element, and the application of an electric current to the coil while the driving magnet is attracted by magnetic material (supporting plate) that is provided on the stationary element side of the coil, wherein: the stationary element is provided with a stationary magnet that is magnetized in a direction that is perpendicular to the axial direction; and the movable element is provided with a movable magnet that opposes, while repelling, the stationary magnet.
    Type: Application
    Filed: May 24, 2017
    Publication date: May 30, 2019
    Applicant: NIDEC COPAL CORPORATION
    Inventor: Masaya ENDO
  • Patent number: 10304600
    Abstract: In one embodiment, a permanent magnet includes a sintered compact having a composition represented by the composition formula: RpFeqMrCusCo100-p-q-r-s (where R is at least one element selected from rare earth elements, M is at least one element selected from Zr, Ti, and Hf, p is 10.5 atomic % or more and 12.5 atomic % or less, q is 24 atomic % or more and 40 atomic % or less, r is 0.88 atomic % or more and 4.5 atomic % or less, and s is 3.5 atomic % or more and 10.7 atomic % or less. The sintered compact has a structure having crystal grains constituted of a main phase including a Th2Zn17 crystal phase, and a crystal grain boundary. In the structure of the sintered compact, an average grain diameter of the crystal grains is 25 micrometer or more, and a volume fraction of the crystal grain boundary is 14% or less.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: May 28, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yosuke Horiuchi, Shinya Sakurada, Keiko Okamoto, Masaya Hagiwara, Tsuyoshi Kobayashi, Masaki Endo, Tadahiko Kobayashi, Kazuomi Yoshima
  • Publication number: 20190072391
    Abstract: A travel direction estimation device mounted on a vehicle including a position detector and an angular velocity detector to estimate a travel direction of the vehicle includes: a first angle processor calculating a first angle based on a change of a position of the vehicle being detected in the position detector and updated at a predetermined time interval, a second angle processor calculating a second angle based on a rotational angular velocity of the vehicle being detected in the angular velocity detector and a detection interval of the position of the vehicle in the position detector, and a travel direction processor calculating the travel direction of the vehicle based on the first angle and the second angle. The travel direction estimation device can estimate a travel direction of a vehicle with a high degree of accuracy.
    Type: Application
    Filed: January 13, 2017
    Publication date: March 7, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroaki KITANO, Yukiyasu AKEMI, Masaya ENDO, Kazuo HITOSUGI
  • Patent number: 10202146
    Abstract: A steering control device capable of causing a steering torque to follow a target steering torque when a driver holds a steering wheel for steering, and making an adjustment so that the steering wheel returns to a neutral position at an appropriate speed, when the driver releases his or her hands from the steering wheel. A motor is controlled based on a motor steering assist torque, which is a sum of a first steering assist torque, which is proportional to an integral value of a deviation between the target steering torque and the steering torque, and a second steering assist torque, which is proportional to a motor rotational angular velocity and acting in a direction of suppressing a return speed of the steering wheel when the steering wheel returns to the neutral position.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masaya Endo, Hidetoshi Ikeda, Yoshihiko Kinpara, Hiroaki Kitano
  • Publication number: 20190039641
    Abstract: Based on the result of determination by a friction transition state determination unit, an assist command value correction unit corrects a basic assist command value in such a way that the hysteresis width of steering torque at a time of turning steering increases; then, a current driving unit controls a motor current in such a way that the motor current coincides with a current command value obtained by correcting the basic assist command value by use of an assist command correction value.
    Type: Application
    Filed: April 26, 2016
    Publication date: February 7, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Taizo TODA, Masaya ENDO, Kenji OGAWA
  • Patent number: 10077072
    Abstract: Provided are a vehicle steering device and the like, which are capable of converging a lateral displacement at a forward gazing-point distance to a target travel line with simple control. A target travel line for a vehicle to travel by following a travel path recognized from an image taken by a camera or the like is set. A lateral speed, which is a change amount of the lateral displacement that is a difference between a position of the target travel line at the forward gazing-point distance and a position of the vehicle, is controlled so that the lateral displacement is reduced. A target steering angle is calculated based on the lateral speed, and a steering angle of the vehicle is controlled based on the calculated target steering angle.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: September 18, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yasuyoshi Hori, Yukiyasu Akemi, Masaya Endo, Hideyuki Tanaka, Takayuki Tanaka, Takahiro Urabe, Kouhei Mori
  • Publication number: 20180236487
    Abstract: A linear vibration motor wherein the amplitude along the direction of thickness is limited, and wherein vibration is produced with a large thrusting force while securing adequate mass in the weight. The linear vibration motor comprises: a coil that is supported over a bottom plate that faces a top face portion of a case, and that is wound along a plane that is perpendicular to the bottom plate; a magnetic pole portion that is able to produce a thrusting force in the vertical direction through an electric current that flows in the coil; a weight that vibrates integrally with the magnetic pole portion; and an elastic member that supports the weight on the top face portion of the case so as to enable vertical vibration.
    Type: Application
    Filed: October 5, 2015
    Publication date: August 23, 2018
    Applicant: Nidec Copal Corporation
    Inventors: Masaya ENDO, Risa NAKAZATO
  • Publication number: 20180229270
    Abstract: A linear vibration motor is provided with a frame, a weight, and a plate spring 4, and is also provided with weight side drive members disposed within a through hole in the weight and attached with the through hole space along the direction of vibration therebetween, and a frame side drive member supported by the frame and disposed so as to pass through the through hole space. The plate spring 4 has a frame side seating part 4A attached to the frame, a weight side seating part attached to an end surface of the weight, and an elastic deformation part that elastically deforms between the frame side seating part and the weight side seating part. The weight side drive members are disposed so as to protrude from the end surface of the weight in the range of the thickness of the plate spring 4.
    Type: Application
    Filed: May 26, 2016
    Publication date: August 16, 2018
    Applicant: Nidec Copal Corporation
    Inventors: Risa NAKAZATO, Masaya ENDO, Kazuya MOCHIDA
  • Patent number: 10000235
    Abstract: The steering control device includes: current command value 1 calculation unit 11 which determines current command value 1 based on a vehicle speed and a steering torque; current command value 2 calculation unit 14 which determines current command value 2 based on a filtered differential value of the steering torque; and current drive unit 10 which drives motor 5 so that the value of the motor current matches the sum of current command values 1 and 2. When a first crossover frequency represents the crossover frequency of control open loop characteristics in the steering control device as obtained when current command value 2 is determined using a differential value of the steering torque which has not been filtered, the notch frequency of the notch filter is set to be greater than the mechanical resonance frequency of the steering control device and smaller than the first crossover frequency.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: June 19, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Taizo Toda, Kenji Ogawa, Masaya Endo
  • Patent number: 9981691
    Abstract: A vehicle steering control apparatus having high robustness while ensuring the accuracy of automatic parking. The steering control apparatus includes a target parking position computing module to calculate a target parking position, a target line computing module to calculate a target parking line, an own vehicle position target attitude angle computing module to calculate an own vehicle position target attitude angle, an own vehicle attitude angle, and the target parking line, an own vehicle position target curvature computing module to calculate an own vehicle position target curvature, and a steering controller for calculating a target steering angle based on the own vehicle position target curvature and performing control such that the actual steering angle matches the target steering angle.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: May 29, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Michitoshi Azuma, Yukiyasu Akemi, Kohei Mori, Yu Takeuchi, Toshihide Satake, Masaya Endo
  • Publication number: 20180118258
    Abstract: When an adjustment information input unit (1) acquires one of information of a feeling value and steering control information, a steering control information calculation unit (2) calculates data of a control characteristic graph visually representing control characteristics of steering using the acquired information. An adjustment information display unit (3) displays, on the same screen, a control characteristic graph in accordance with the data of the control characteristic graph and a feeling value operation section visually showing the feeling value.
    Type: Application
    Filed: July 15, 2015
    Publication date: May 3, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Reiko SAKATA, Yoshimichi UMEKI, Tsutomu MATSUBARA, Yoshiki ONO, Hiroaki KITANO, Masaya ENDO
  • Patent number: 9906109
    Abstract: A vibration actuator includes: a coil having a vibration space along an axial direction; an outer case that covers the coil and that extends the vibration space in the axial direction; a movable element that comprises a magnet that vibrates within the coil and a weight unit that vibrates within the outer case and that is connected to one end side, in the axial direction, of the magnet; and an elastic member that supports elastically the vibration of the movable element in the axial direction. A resin layer is secured to an outer peripheral surface of the weight unit that faces an inner surface of the outer case. An oil film is interposed between the resin layer and the inner surface of the outer case.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 27, 2018
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Masaya Endo, Satoru Ishikawa
  • Patent number: 9896122
    Abstract: Provided is a steering control device, including: an actuator for applying a steering assist torque to a steering system of a vehicle; a vehicle turning state detection section for detecting a state amount representing a turning state of the vehicle; a steering-holding determination section for determining a steering-holding state of the steering system; a storing section for storing, when the steering-holding determination section determines that the steering system is in the steering-holding state, the state amount detected by the vehicle turning state detection section as a steering-holding determination state amount; a steering assist torque calculation section for calculating the steering assist torque based on an absolute value of the steering-holding determination state amount; and an actuator control section for controlling the actuator based on the calculated steering assist torque.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: February 20, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaya Endo, Yoshihiko Kimpara, Kenji Ogawa, Taizo Toda
  • Patent number: 9896124
    Abstract: A steering control apparatus is obtained which includes an assist instruction-value correction device for calculating, based on a result of a friction transition-state determination device, an assist correction value in order to obtain an assist instruction-value after its correction being made by correcting a basic assist instruction-value so that a hysteresis width of steering torque increases at the time of turn-back steering, and an electric current driving device for driving a motor so that an electric current of the motor is coincident with an electric current instruction-value therefor after its correction being made on the basis of the assist instruction-value after its correction being made; and the friction transition-state determination device determines the friction transition-state by integrating a differential value of steering-shaft reaction torque using an integrator having a limiting function to an upper or lower limit value defined in advance.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: February 20, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Taizo Toda, Masaya Endo, Yoshihiko Kimpara, Kenji Ogawa
  • Patent number: 9738307
    Abstract: Provided are a steering control device and the like, including the steps of: calculating a steering assist torque to be applied to an actuator for applying the steering assist torque to a steering system of a vehicle in order to improve return characteristics of the steering system; determining a steering state of a driver; correcting the steering assist torque depending on a result of the steering state determination; and controlling the actuator depending on the corrected steering assist torque, in which the step of determining a steering state of a driver includes determining the steering state of the driver based on a combination of at least two of the following: a manually-operating steering state determination; an abrupt steering wheel return determination; a high-acceleration steering wheel return determination; a manual return steering determination; and an additional-steering determination.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: August 22, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaya Endo, Hidetoshi Ikeda, Isao Kezobo, Kenji Ogawa, Taizo Toda
  • Publication number: 20170217484
    Abstract: The steering control device includes: current command value 1 calculation unit 11 which determines current command value 1 based on a vehicle speed and a steering torque; current command value 2 calculation unit 14 which determines current command value 2 based on a filtered differential value of the steering torque; and current drive unit 10 which drives motor 5 so that the value of the motor current matches the sum of current command values 1 and 2. When a first crossover frequency represents the crossover frequency of control open loop characteristics in the steering control device as obtained when current command value 2 is determined using a differential value of the steering torque which has not been filtered, the notch frequency of the notch filter is set to be greater than the mechanical resonance frequency of the steering control device and smaller than the first crossover frequency.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 3, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Taizo TODA, Kenji OGAWA, Masaya ENDO
  • Patent number: 9692286
    Abstract: A first weight portion of a vibration actuator includes an inner-side enlarged portion that protrudes from an end portion of a solid head in a direction of a vibration axis and that is inserted into an opening portion extending within a first compression coil spring along the direction of the vibration axis. An outer peripheral surface of the inner-side enlarged portion becomes continuously smaller in diameter from a base end towards a free end, with the vibration axis being the center of the diameter. That is, the inner-side enlarged portion has the shape of a truncated cone. The inner-side enlarged portion is inserted into the opening portion of the first compression coil spring and the opening portion is utilized to change the length of the inner-side enlarged portion in the direction of the vibration axis, thereby changing the mass of the first weight portion.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 27, 2017
    Assignee: NIDEC COPAL CORPORATION
    Inventors: Masaya Endo, Yoshihide Tonogai