Patents by Inventor Kenta Tanaka

Kenta Tanaka 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: 11338844
    Abstract: An electric power steering apparatus includes a high-frequency compensation unit that outputs a high-frequency compensation signal obtained by filtering the high-frequency components of an assist torque command signal and multiplying the filtered high-frequency components by a gain; a corrected steering torque signal obtained by negatively or positively feeding back the high-frequency compensation signal to a steering torque signal is inputted to an assist torque command calculation unit; the assist torque command calculation unit outputs the assist torque command signal in accordance with the corrected steering torque signal.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: May 24, 2022
    Assignee: Mitsubishi Electric Cornoration
    Inventors: Isao Kezobo, Kenta Tanaka, Masaharu Tanaka, Akiyoshi Takashima
  • Patent number: 11331744
    Abstract: An electric wire arranging jig (40) has an electric wire arranging groove (16, 31, 41) configured to be inserted the electric wires. The electric wire arranging groove has a pair of arranging surfaces facing each other. The electric wire arranging groove is configured to have a cross-sectional shape, in a section perpendicular to a direction of the electric wires extending within the electric wire arranging groove, having a distance in a width direction of the electric wire arranging groove continuously narrowed from an insertion start portion for the electric wires toward a bottom portion of the electric wire arranging groove and the arranging surfaces each inclining from a vertical direction, at least in a part of a segment between the insertion start portion and the bottom portion.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: May 17, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Kazuhiro Shohara, Shinji Goto, Kenta Tanaka
  • Patent number: 11312097
    Abstract: A blank has an upper surface and a reverse surface. The upper surface is printed in a conventional manner and includes outer side panels and inner side panels. Attachment regions are provided on the inner side panels of the outer surface, and corresponding attachment regions are provided on the outer side panels of the reverse surface. During assembly the respective attachment regions are arranged to face one another and an adhesive is provided therebetween. In the present method, the attachment regions of the upper surface initially have a surface tension in the range from around 34 dynes/cm to 60 dynes/cm before the upper surface is printed. The attachment regions are treated in order to maintain a surface tension in the desired range of 34 dynes/cm to 60 dynes/cm, following printing and before any adhesive is applied. This is achieved by applying an auxiliary printing medium to the attachment regions.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: April 26, 2022
    Inventors: Kenta Tanaka, Dominic Lukasz Latuszek, Mike Clausen
  • Publication number: 20220113196
    Abstract: An installation structure of a temperature sensor includes a measured object support provided with an installation section, a guide section, and a measured object support section configured to support a measured object; and a temperature sensor provided with a guided section engaged with the guide section of the measured object support, and installed in the installation section of the measured object support by moving in a predetermined direction relative to the measured object support in a manner along one predetermined outer surface of the measured object while engaging the guided section with the guide section.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Applicant: Yazaki Corporation
    Inventors: Akinori SAKAMOTO, Kenta Tanaka
  • Publication number: 20200255067
    Abstract: To provide a motor controller and an electric power steering apparatus which can suppress torque fluctuation resulting from low detection resolution of angle, with simple calculation, even in condition where the rotational speed of motor is low. A motor controller estimates an angle error correlation value correlated with the angle detection error based on the current command value when a change frequency of the angle detection value is lower than a cutoff frequency of feedback control system which controls a rotation state; corrects the current command value or the angle detection value based on the estimation value of angle error correlation value; and changes the estimation value of angle error correlation value so that the absolute value of angle detection error increases with respect to increase in the current command value, and the absolute value of angle detection error decreases with respect to decrease in the current command value.
    Type: Application
    Filed: November 7, 2017
    Publication date: August 13, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenta TANAKA, Isao KEZOBO, Akira FURUKAWA, Seiji SAWADA
  • Patent number: 10589141
    Abstract: The present invention is intended to provide an active exercise apparatus for lower limbs that allows a user to perform on a floor lower limb active exercise highly effective in preventing thrombosis.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: March 17, 2020
    Assignees: UNIVERSITY OF TSUKUBA, NEMOTO SEISAKUSHO CO. LTD.
    Inventors: Yukiyo Shimizu, Masashi Yamazaki, Hiroshi Kamada, Kenta Tanaka, Toshiji Mizukoshi, Tsutomu Mizukoshi
  • Publication number: 20200031385
    Abstract: There is provided an electric power steering device, including: a reverse steering detection unit configured to determine start of reverse steering when a magnitude of a rotational speed of a motor is equal to or smaller than a set speed, a rotational acceleration of the motor is in a direction of causing the rotational speed of the motor to become 0, and a magnitude of the rotational acceleration of the motor is equal to or larger than a set acceleration; and a current command control unit configured to output a current command for the motor based on the steering torque or the rotational speed of the motor, in which the current command control unit is configured to increase a transfer gain from input to output by the current command control unit when the reverse steering detection unit determines start of the reverse steering.
    Type: Application
    Filed: March 27, 2017
    Publication date: January 30, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Isao KEZOBO, Kenta TANAKA, Akira FURUKAWA, Masaharu TANAKA, Akiyoshi TAKASHIMA
  • Publication number: 20190344378
    Abstract: An electric wire arranging jig (40) has an electric wire arranging groove (16, 31, 41) configured to be inserted the electric wires. The electric wire arranging groove has a pair of arranging surfaces facing each other. The electric wire arranging groove is configured to have a cross-sectional shape, in a section perpendicular to a direction of the electric wires extending within the electric wire arranging groove, having a distance in a width direction of the electric wire arranging groove continuously narrowed from an insertion start portion for the electric wires toward a bottom portion of the electric wire arranging groove and the arranging surfaces each inclining from a vertical direction, at least in a part of a segment between the insertion start portion and the bottom portion.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Applicant: Yazaki Corporation
    Inventors: Kazuhiro Shohara, Shinji Goto, Kenta Tanaka
  • Publication number: 20190342668
    Abstract: In an electric sound conversion apparatus, it is possible to reproduce sound of high quality particularly in a low-tone range. A driving magnet 31 is fixed in a cup-shaped yoke 29, and a vibrating membrane 39 facing a driving magnet at an interval is fixed at a tip portion of the yoke 29 to block it. A voice coil 41 formed by winding an insulated wire is fixed in the vibrating membrane 39 to surround the central region. The voice coil 41 is inserted between an outer periphery of the driving magnet 31 and an inner wall inside the yoke 29. Lead wires at both ends 41a of the voice coil 41 are drawn from diagonal positions. An outer peripheral region 39b faces a sealed space E formed between the outer periphery of the driving magnet 31 and an area inside the yoke 29 from a vicinity of the voice coil 41 in the vibrating membrane 39.
    Type: Application
    Filed: September 2, 2016
    Publication date: November 7, 2019
    Inventor: Kenta TANAKA
  • Patent number: 10334367
    Abstract: There is provided an electroacoustic transducer capable of reproducing high-quality sound particularly in a low frequency range, including: a cylindrical yoke; a drive magnet placed coaxially with the yoke so as to circumferentially face the yoke; a diaphragm fixed at the cylindrical tip end portion of the yoke so as to face each other; and a voice coil fixed to one surface of the diaphragm, wherein the diaphragm is formed, with the central region having rigidity so as to be less flexible compared with an outer circumferential region surrounding the central region, and the voice coil is inserted between the drive magnet and the yoke, and configured to cause the diaphragm to vibrate by a voice signal applied to the both-end lead wire. The both-end lead wire of the voice coil is led out to the outside through the central region of the diaphragm.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: June 25, 2019
    Assignee: TOKYO ONKYO CO., LTD.
    Inventor: Kenta Tanaka
  • Patent number: 10333311
    Abstract: A control unit of an electric motor control device includes an inverter circuit 6 that supplies power to an electric motor, a current control unit that outputs a voltage command value as a drive command of the inverter circuit, a current detecting unit that detects current flowing to each phase of the electric motor, and a failed phase identifying unit that identifies a location of a failure in the current detecting unit. The failed phase identifying unit determines whether or not a magnitude or a phase of a frequency component of the test voltage command included in a detected current value when the inverter circuit is driven with a test voltage command having a frequency higher than a rotational frequency of the electric motor as a drive command is within a predetermined range, and determines that a failure has occurred in a phase that is not within the predetermined range.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: June 25, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Chiaki Fujimoto, Kenta Tanaka, Tatsuya Mori, Isao Kezobo
  • Publication number: 20190176430
    Abstract: A blank has an upper surface and a reverse surface. The upper surface is printed in a conventional manner and includes outer side panels and inner side panels. Attachment regions are provided on the inner side panels of the outer surface, and corresponding attachment regions are provided on the outer side panels of the reverse surface. During assembly the respective attachment regions are arranged to face one another and an adhesive is provided therebetween. In the present method, the attachment regions of the upper surface initially have a surface tension in the range from around 34 dynes/cm to 60 dynes/cm before the upper surface is printed. The attachment regions are treated in order to maintain a surface tension in the desired range of 34 dynes/cm to 60 dynes/cm, following printing and before any adhesive is applied. This is achieved by applying an auxiliary printing medium to the attachment regions.
    Type: Application
    Filed: September 26, 2017
    Publication date: June 13, 2019
    Applicant: JT International S.A.
    Inventors: Kenta Tanaka, Dominic Lukasz Latuszek, Mike Clausen
  • Patent number: 10281273
    Abstract: Provided is a sensing system (1) in which a desired trajectory determining section (32) determines a first desired trajectory th(t) (where t<t1) whose first derivative is continuous, a second desired trajectory th(t) (where t2?t<t3) whose first derivative is continuous, a third desired trajectory th(t) (where t1?t<t2) configured with a common tangent line to the first and second desired trajectories, and a fourth desired trajectory th(t) (where t35?t<t4) configured with a common tangent line to the second desired trajectory in the current-time cycle and a first desired trajectory in a next-time cycle. A drive mechanism controlling section (33) controls an operation of the drive mechanism so as to track the desired trajectories.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 7, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takumi Kamioka, Kenta Tanaka
  • Publication number: 20190100234
    Abstract: An electric power steering apparatus includes a high-frequency compensation unit that outputs a high-frequency compensation signal obtained by filtering the high-frequency components of an assist torque command signal and multiplying the filtered high-frequency components by a gain; a corrected steering torque signal obtained by negatively or positively feeding back the high-frequency compensation signal to a steering torque signal is inputted to an assist torque command calculation unit; the assist torque command calculation unit outputs the assist torque command signal in accordance with the corrected steering torque signal.
    Type: Application
    Filed: May 24, 2016
    Publication date: April 4, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Isao KEZOBO, Kenta TANAKA, Masaharu TANAKA, Akiyoshi TAKASHIMA
  • Publication number: 20180323613
    Abstract: A control unit of an electric motor control device includes an inverter circuit 6 that supplies power to an electric motor, a current control unit that outputs a voltage command value as a drive command of the inverter circuit, a current detecting unit that detects current flowing to each phase of the electric motor, and a failed phase identifying unit that identifies a location of a failure in the current detecting unit. The failed phase identifying unit determines whether or not a magnitude or a phase of a frequency component of the test voltage command included in a detected current value when the inverter circuit is driven with a test voltage command having a frequency higher than a rotational frequency of the electric motor as a drive command is within a predetermined range, and determines that a failure has occurred in a phase that is not within the predetermined range.
    Type: Application
    Filed: January 14, 2016
    Publication date: November 8, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Chiaki FUJIMOTO, Kenta TANAKA, Tatsuya MORI, Isao KEZOBO
  • Publication number: 20180284875
    Abstract: A power consumption reduction device is a power consumption reduction device in which an application is operated, and includes: a processor; an output unit that is controlled by the processor in a user mode, and outputs a condition under which performance of the application is not degraded; and a determining unit that is controlled by the processor in a kernel mode, and determines a component to be operated among the components of the processor so that the output condition is satisfied.
    Type: Application
    Filed: March 14, 2018
    Publication date: October 4, 2018
    Applicant: NEC Corporation
    Inventor: Kenta TANAKA
  • Publication number: 20180207467
    Abstract: The present invention is intended to provide an active exercise apparatus for lower limbs that allows a user to perform on a floor lower limb active exercise highly effective in preventing thrombosis.
    Type: Application
    Filed: February 22, 2017
    Publication date: July 26, 2018
    Applicants: University of Tsukuba, Nemoto Seisakusho Co. Ltd.
    Inventors: Yukiyo SHIMIZU, Masashi YAMAZAKI, Hiroshi KAMADA, Kenta TANAKA, Toshiji MIZUKOSHI, Tsutomu MIZUKOSHI
  • Publication number: 20180098155
    Abstract: There is provided an electroacoustic transducer capable of reproducing high-quality sound particularly in a low frequency range, including: a cylindrical yoke; a drive magnet placed coaxially with the yoke so as to circumferentially face the yoke; a diaphragm fixed at the cylindrical tip end portion of the yoke so as to face each other; and a voice coil fixed to one surface of the diaphragm, wherein the diaphragm is formed, with the central region having rigidity so as to be less flexible compared with an outer circumferential region surrounding the central region, and the voice coil is inserted between the drive magnet and the yoke, and configured to cause the diaphragm to vibrate by a voice signal applied to the both-end lead wire. The both-end lead wire of the voice coil is led out to the outside through the central region of the diaphragm.
    Type: Application
    Filed: April 21, 2015
    Publication date: April 5, 2018
    Inventor: Kenta Tanaka
  • Patent number: 9901814
    Abstract: A housing of a game controller is capable of being held with one hand of a player. A direction instruction section is provided in the housing for performing a direction instruction input. Movement detection means is means for detecting movement of the housing. Movement direction control means of a game apparatus is means for determining a movement direction of an object, which appears in a virtual game world, in accordance with an operation of the direction instruction section. Posture control means is means for determining a posture of the object in the virtual game world in accordance with detection by the movement detection means.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: February 27, 2018
    Assignee: Nintendo Co., Ltd.
    Inventors: Toyokazu Nonaka, Toshiharu Izuno, Kentaro Nishimura, Kenta Tanaka, Norihito Ito, Masayuki Okada
  • Patent number: 9758952
    Abstract: A human body detection sensor includes: a detection decision unit that decides whether a state is a detection state or a non-detection state of a detection target; a specular reflection decision unit that decides whether or not reflected light that is incident onto a line sensor is specularly-reflected light; and a continuation decision unit that decides whether or not a state in which the detection target exists is ongoing, wherein, when specularly-reflected light is detected while a determination is made indicating the detection state, the detection decision unit keeps the result of a determination indicating the detection state without change if the result of the decision by the continuation decision unit indicates that the state is ongoing and changes the determination to a determination indicating the non-detection state if the result of the decision shows any other states.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: September 12, 2017
    Assignee: LIXIL CORPORATION
    Inventors: Yuki Shirai, Nobuaki Itazu, Hiroyuki Oura, Kenta Tanaka