Patents Assigned to Kabushiki Kaisha Tokai Rika Denki Seisakusho
  • Publication number: 20210011143
    Abstract: A distance measurement system includes communication units arranged in a communication subject. The communication units form different radio wave transmission paths in accordance with a location of a communication device, and are configured such that when one of the radio wave transmission paths is blocked, communication with the communication device is enabled by another one of the radio wave transmission paths. The distance measurement system further includes a distance measurement unit that measures the distance between the communication device and the communication subject using one of the radio wave transmission paths by performing distance measurement communication that transfers a distance measurement signal between the communication units and the communication device.
    Type: Application
    Filed: February 28, 2019
    Publication date: January 14, 2021
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kazuki NAIKI, Hiroaki IWASHITA, Satoshi MORI, Kenichi KOGA, Yoshiyuki OYA, Masateru FURUTA, Masanori KOSUGI
  • Patent number: 10887496
    Abstract: In an imaging device, a heater heats cover glass from an outer circumferential side thereof. Here, a first heating area and a second heating area are provided respectively on a lower side and an upper side of the heater, and a heating density of the first heating area is greater than a heating density of the second heating area. Consequently, when defrosting the cover glass, it is possible to inhibit water droplets from remaining in a central portion of the cover glass and in an upper-side portion thereof above this central portion, and to inhibit water droplets from being present in the central portion of the cover glass.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: January 5, 2021
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Reiya Ichimura, Nobuhiro Kudou, Suguru Fujisaki
  • Patent number: 10882491
    Abstract: A lock device includes a locking member, a movable member, and a transmission mechanism. The locking member is moved between a lock position at which it locks a locking subject and an unlock position at which it unlocks the locking subject. The transmission mechanism transmits a drive force to the movable member and moves the movable member. A movement state of the movable member is shifted between a relative movement state in which it is moved relative to the locking member and an integral movement state in which it is moved together with the locking member to move the locking member toward the lock or unlock position. The lock device further includes a detector of which an output value varies in accordance with movement of the movable member or the transmission mechanism, and a controller that performs a failure determination based on a change in the output value.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: January 5, 2021
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Takuma Morishita, Koji Okuda, Takanori Matsuyama
  • Publication number: 20200398884
    Abstract: A switch device includes a switch part that is installed on a steering wheel of a vehicle and that includes an operation knob and an electromagnetic element for detecting an operation on the operation knob and causing a vibration of the operation knob, and a control unit that makes the operation knob vibrate. The control unit controls the electromagnetic element to vibrate under a predetermined condition so that vibration is transmitted to a hand of an occupant holding the steering wheel.
    Type: Application
    Filed: August 28, 2018
    Publication date: December 24, 2020
    Applicant: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Tatsushi KATSUYAMA, Takashi NAGAO, Tetsuya EGAWA, Takeyoshi MORI
  • Publication number: 20200395975
    Abstract: A position determination system includes a determination unit that repeats a position determination process in predetermined cycles to determine the present position of the terminal in each cycle. In the position determination process, the determination unit obtains a measurement value that indicates a characteristic of radio waves transmitted between a communication device and a terminal to determine the position of the terminal relative to the communication device from the measurement value. The determination unit manages the position of the terminal through a determination control that allows a position determination result to be maintained over a number of the predetermined cycles.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 17, 2020
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Tsuyoshi KIMURA
  • Patent number: 10859053
    Abstract: A switch device includes an operation button to be push-operated, and a sealing portion for sealing a gap between the operation button and an opening through which the operation button is inserted. The sealing portion may include a ring-shaped first seal that is in contact with the operation button and exhibits sealing properties, and a second seal that is harder than the first seal and is located on the outer side of the first seal. The first seal and the second seal may be integrated so as to form a frame of the sealing portion.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: December 8, 2020
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Toshiaki Imai, Ryoji Takahashi, Shuichi Iwata
  • Patent number: 10859161
    Abstract: A shift device for a vehicle, the shift device comprising: a shift body that is moved to change a shift position; and a restriction section provided with a first restriction member and a second restriction member, configured such that actuation of the first restriction member restricts movement of the shift body to a plurality of shift positions or within a shift range, and configured such that actuation of the first restriction member and the second restriction member, or actuation of the second restriction member alone, restricts movement of the shift body to a shift position.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: December 8, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Makoto Yamamoto, Munetoshi Makimura
  • Publication number: 20200369205
    Abstract: A vehicle periphery monitoring device acquires first image information of a vehicle rear side and second image information of vehicle rear lateral sides. Second points at infinity of the second image information are made to approximately coincide with a first point at infinity of the first image information, and the first image information and the second image information are combined, and first composite image information is generated. When sensing a request to change a viewpoint toward a vehicle rear lateral side, second composite image information that is viewed with a virtual viewpoint having been moved toward a vehicle lateral side is generated. Further, when a path changing operation of an operation portion that is used in changing a path is completed, third composite image information that is viewed with a virtual viewpoint having been moved toward the side of the path change is generated.
    Type: Application
    Filed: November 27, 2018
    Publication date: November 26, 2020
    Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Toshinari NAKAI, Seiji KONDO
  • Publication number: 20200374122
    Abstract: An authentication system includes an authentication unit that performs an authentication process between a first communication device and a second communication device when the first communication device and the second communication device communicate. The authentication unit performs the authentication process by transmitting authentication information from one of the first communication device and the second communication device to the other one, calculating the authentication information with an encryption code in each of the first communication device and the second communication device, and evaluating a calculation result. During a processing series in the authentication process, the authentication unit performs a first authentication based on part of the calculation result transmitted between the first and second communication device, and a second authentication based on another part of the calculation result transmitted between the first and second communication device.
    Type: Application
    Filed: February 28, 2019
    Publication date: November 26, 2020
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kazuki NAIKI, Hiroaki IWASHITA, Kenichi KOGA, Yoshiyuki OYA, Yoshiki OISHI
  • Patent number: 10840909
    Abstract: A signal outputting circuit including: an input line to which an input signal is inputted; a first current generating circuit connected to the input line, the first current generating circuit generating a first current having a magnitude corresponding to a level of a supplied power supply voltage; a second current generating circuit connected to the input line, the second current generating circuit generating a second current that turns ON and OFF in accordance with switching of a level of an output signal; a resistor element provided at the input line; and an outputting circuit that switches a logic level of the output signal in accordance with a level of voltage generated at the input line.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: November 17, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Akira Yajima, Tomoki Narita
  • Patent number: 10830339
    Abstract: A shift device includes: a shift mechanism that is provided with a shift body that is movable to change a shift position; at least one rotation section that is provided at the shift mechanism and that is rotated about a center axis line of the rotation section; at least one moving section that is provided at the shift mechanism and that is moved; and a detection body that detects a rotation position of the rotation section and detects a movement position of the moving section.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 10, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Hironori Watanabe, Munetoshi Makimura, Koji Imai, Yohei Nakano, Kazuhiro Saito
  • Patent number: 10829086
    Abstract: A webbing take-up device includes a spool that takes up webbing worn by an occupant by being rotated in a take-up direction, and a pretensioner mechanism. The pretensioner mechanism includes a gas generator that includes a gas-generating-agent-storing portion and an ignition-device-storing portion, and a cylinder to which the gas generator is attached and that includes a second tubular portion into which gas generated by the gas generator is supplied. A discharge hole, through which gas supplied to the second tubular portion is discharged, is formed in a portion of the cylinder where the ignition-device-storing portion is disposed.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: November 10, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Wataru Yanagawa, Shinichi Okubo, Takahiro Tanaka
  • Patent number: 10822015
    Abstract: A steering switch device includes a housing disposed in a spoke portion of a steering wheel of a vehicle, the housing including an operation unit configured to operate an electronic device that is electrically connected, and an illumination unit provided in a side surface of the housing protruding from the spoke portion, the illumination unit being configured to illuminate a grip portion of the steering wheel.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 3, 2020
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Shinobu Sasaki
  • Patent number: 10823372
    Abstract: A switch device includes a display device including a polarization plate including a first polarization layer that transmits a linear polarization component oscillating in a first direction, and a second polarization layer that transmits a linear polarization component oscillating in a second direction, the first and second polarization layers being stacked directly on top of one another so that the first direction is orthogonal to the second direction, a first light source unit that outputs the linear polarization component oscillating in the first direction, and a second light source unit that outputs the linear polarization component oscillating in the second direction, a switch section that performs switching between the light emitting state and the non-light emitting state of the first and second light source units, and an operating section that operates the switch section, wherein the polarization plate is provided in the operating section.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: November 3, 2020
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Mitsuru Naruse
  • Patent number: 10814536
    Abstract: A mold assembly includes a mold body configured to mold an insert molded article, and a support member including at least two support pieces configured to support an insert part in a direction substantially orthogonal to a mold opening and closing direction. The insert part is disposable within the mold body, the support pieces are each configured to be movable between a supporting position and a non-supporting position, and the support pieces are each configured to support the insert part at the supporting position, and not to support the insert part at the non-supporting position.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: October 27, 2020
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Shohei Mano
  • Patent number: 10813414
    Abstract: In a cover of a buckle device, an engagement hook of a side wall of an upper cover is fit together with an engagement groove of a side wall of a lower cover to assemble the upper cover to the lower cover. When the side wall of the upper cover receives an external force, a holder of a buckle switch is sandwiched between a side plate of a buckle body and a rib of the lower cover such that the side plate receives the external force. Accordingly, the rigidity at the engagement hook of the cover is able to be increased.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 27, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Tomoya Yokoi, Tomotaka Suzuki, Takahiro Osaki, Akihito Kunisada, Kentaro Yamada
  • Publication number: 20200331431
    Abstract: An engine switch device is disclosed by which the engine is permitted to be started using an engine switch when biometric authentication executed on the basis of biometric information sensed by a biometric authentication sensor is successful.
    Type: Application
    Filed: August 29, 2018
    Publication date: October 22, 2020
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Akira FUSHIMI
  • Patent number: 10808833
    Abstract: In a shift device, when a switch is operated, a moving portion, a first lock plate, a second lock plate and a third lock plate are moved toward a vehicle front side, and placement of the first lock plate, the second lock plate and the third lock plate at a return path is cancelled. Therefore, if the switch is operated when a lever is placed at other than a “P” position, due to a guide pin being moved along the return path toward an upper side by urging force of a return spring, the guide pin is returned to a vehicle front side end of a first lateral path, and the lever is returned to the “P” position. Due thereto, the lever can easily return to the “P” position from other than the “P” position.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: October 20, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Susumu Mega, Yoshihisa Hirano
  • Patent number: 10808811
    Abstract: At a lift-up buckle device, due to a motor being driven and an output shaft of the motor being rotated, a drive screw is rotated. Further, a supporting tube rotatably supports a rear end portion of the drive screw. Here, the output shaft rotatably supports a front end portion of the drive screw. Therefore, offset between a rotation central axis of the output shaft and a rotation central axis of the drive screw can be suppressed.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: October 20, 2020
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventor: Makoto Matsuzaki
  • Patent number: 10800419
    Abstract: A drive cycle controller includes a drive cycle switching unit and an output state determination unit. The drive cycle switching unit switches a drive cycle of a microcomputer, which monitors an output of a device, from a first drive cycle to a second drive cycle that is shorter than the first drive cycle if the microcomputer detects a change in an output of the device at an activation timing in the first drive cycle. The output state determination unit determines an output state of the device if the microcomputer confirms that the output has remained changed at an activation timing in the second drive cycle.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: October 13, 2020
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Yuichiro Kato