Patents Assigned to Tokyo Parts Industrial Co., Ltd.
  • Patent number: 11226213
    Abstract: The capacitive proximity sensor includes an oscillation means, an LCR resonance circuit including a sensor electrode, a sensor circuit that outputs a determination voltage signal corresponding to the capacitance of the sensor electrode, and a control unit that detects the proximity of a human body to the sensor electrode based on the determination voltage signal. The control unit performs control that alternatingly and repeatedly executes calibration steps for updating a detection frequency f1 and a first threshold value Vth1 and a detection step for detecting the proximity of the human body to the sensor electrode.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: January 18, 2022
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Mamoru Kubo
  • Patent number: 10794560
    Abstract: An illumination device includes a case, a lens body, an LED substrate, a stopper member, and a lead wire. The lens body is fixed in the case. An illuminating part of the lens body projects outward from the upper face opening of the case. The LED substrate is housed in the substrate housing part of the lens body, and the lower surface of the LED substrate is supported by the stopper member. The two lead wires are connected to the LED, led out of the case through insertion holes in the stopper member, and retained by one of lead wire retainers formed on the two side surfaces of the case.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: October 6, 2020
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Takahisa Kitahara
  • Patent number: 10796843
    Abstract: Copper covered steel is used for metal terminals 50a, 50b in an antenna coil. Through holes penetrating in the Z direction and position restraining grooves that are formed continuous with these through holes are formed in a holder for holding the metal terminals 50a, 50b. Proceeding from the situation in which the metal terminals 50a, 50b have been driven into, so as to be press-fit in, the through holes in the holder, by bending the first ends in the Y direction and the second ends in the X direction, the first ends and the second ends are respectively fitted into position restraining grooves such that the positions of binding parts 50a1, 50b1 and lead wire connection parts 50a2, 50b2 are restrained.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: October 6, 2020
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Takahisa Kitahara
  • Patent number: 10637167
    Abstract: A switch mounting device comprises: a resin seat having an upper surface and a lower surface; a switch mounted on the upper surface of the seat; and terminal members fixed to the lower surface. The seat has claw parts on the lower surface thereof. The switch has a main body part, which is operated by pressing in the X direction, and connection terminals extending downward from this main body part. With connection terminals led out to the lower surface of the seat, the connection terminals are electrically connected to the terminal members. The terminal members are fixed to the seat by the claw parts by way of being slid along the lower surface of the seat.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: April 28, 2020
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Takahisa Kitahara
  • Patent number: 10608499
    Abstract: A motor case of a vibration motor has a first tubular part and a first inward flange integrally formed in a flange shape in the inward direction from the upper opening end of the first tubular part. A rotary shaft 30 is supported in an upper oil-impregnated bearing and a lower oil-impregnated bearing, and an upper portion of the rotary shaft protrudes from the motor case. The rotary shaft is inserted into a soft washer, with the soft washer between the rotor unit and the upper oil-impregnated bearing. A weight is eccentrically fixed to the upper portion of the rotary shaft, and an attraction magnet is fixed to the motor case and attracts the weight toward the motor case side. A retainer, which prevents the upper oil-impregnated bearing from coming out in the upward direction, is formed on the motor case.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: March 31, 2020
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Hidekazu Imai
  • Patent number: 10597913
    Abstract: A control unit 20, including a circuit board and a switch unit, is arranged in a housing space in a door handle. The switch unit has a switch component, which is fastened to the circuit board, a hard switch case, which covers the switch component, a soft pushbutton, which operates the switch component, and a hard cover member, which is fastened to the switch case. The pushbutton has a pushing part in the shape of a cap, a flange, which extends from the bottom end of the pushing part, and an operation projection, which is inserted into an insertion opening in a roof. The switch case and the pushbutton are united by the cover member, and the flange is brought into close contact with the roof all the way therearound, by the cover member.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 24, 2020
    Assignee: TOKYO PARTS INDUSTRIAL CO., LTD.
    Inventor: Takahisa Kitahara
  • Patent number: 10439286
    Abstract: An antenna coil housed in a tubular case has a holder made from resin, which is fitted on a magnetic-material core. This holder has a core holding part, which holds the magnetic-material core, and a lead wire holding part, which holds lead wires. The lead wire holding part has first holding parts 22a, which hold the lead wires in the X direction, near the ends, and second holding parts 22b, which hold the ends of the lead wires in the Y direction, the ends of the coil being connected to conductors of the lead wires, which are led out via the second holding parts 22b.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 8, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Takahisa Kitahara
  • Patent number: 10340773
    Abstract: In a brushless motor having a rotor in which a drive magnet 43 and a position detection magnet 44 are fixed to the inside of a rotor case 44, along the axial direction, an annular separation plate 45 having positioning parts 45a and 45b for positioning these in the circumferential direction is disposed between the drive magnet 43 and the position detection magnet 44. Thereby, the magnetic influence of the drive magnet can be limited, and thus a highly reliable position detection signal can be obtained.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: July 2, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahiro Nishidate
  • Patent number: 10320264
    Abstract: A cover member has a through hole in the center. A rotary shaft protrudes upward from the through hole, without contact with the cover member. A first washer member, which is made from a hard material, is fastened to the rotary shaft, between the rotor case and the cover member. The first washer member is disposed without contact with the rotor case and the cover member.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: June 11, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahiro Nishidate
  • Patent number: 10309131
    Abstract: The resonance frequency of an LCR resonance circuit is f1 and the determination voltage signal is V1, when an object is not in the proximity of a sensor electrode. The resonance frequency of the LCR resonance circuit is f2 and the determination voltage signal is V2, when a human body is in proximity of the sensor electrode 22. The resonance frequency of the LCR resonance circuit is f3 and the determination voltage signal is V3, when water is in the proximity of the sensor electrode. The LCR resonance circuit has the relationship f1>f2>f3. A control unit controls a high-frequency signal S0 so as to satisfy the relationship V2>V1>V3, and a human body or water being in the proximity of the sensor electrode is distinguished.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 4, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Mamoru Kubo
  • Patent number: 10312771
    Abstract: The bottom end of a rotary shaft contacts a cover part of a cover member, while the top end of the rotary shaft protrudes upwards from a retaining plate. A planar first washer member, which is made from a hard material, is fastened to the rotary shaft, between a bottom plate of a rotor case and an oil-impregnated bearing. The first washer member is disposed without contact with the bottom plate of the rotor case and the oil-impregnated bearing.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 4, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahiro Nishidate
  • Patent number: 10309458
    Abstract: A double bearing comprising an inner bearing and an outer bearing, which has a greater oil content than the inner bearing, is used as a bearing for a brushless motor. The inner bearing has an upper bearing part, a lower bearing part, and a central relief part. Gaps are provided between the bearing parts and a bearing housing, along the entire axial length of all of the bearing parts of the inner bearing.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 4, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahisa Tuchiya
  • Patent number: 10312767
    Abstract: A washer member 22a and a seal member 41a are disposed in a mutually non-contacting state in the axial direction. A rotary shaft 11 has an annular groove 11a in the outer circumferential face. A minimum diameter part 11a3 of the annular groove 11a is disposed between the uppermost surface of the washer member 22a and the lowermost surface of the seal member 41a. The upper end of the annular groove 11a is disposed axially below the uppermost surface of the seal member 41a. The outer surface of the seal member 41a and the outer circumferential face of the rotary shaft 11 that faces the seal member 41a in the radial direction are subjected to oil-repellent treatment.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 4, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahiro Nishidate
  • Patent number: 10260258
    Abstract: In a state in which a high-frequency signal at a first detection frequency f1 is input to an LCR resonance circuit 20, upon detecting that a voltage signal S1 is greater than or equal to an upper-limit threshold value Vth11 or less than or equal to a first lower-limit threshold value Vth12, a high-frequency signal at a second detection frequency f2 is input to the LCR resonance circuit 20. Then, in a state in which the high-frequency signal at the second detection frequency f2 is input, the proximity of a human body or water to a sensor electrode 22 is detected by detecting that the voltage signal has reached less than or equal to a second lower-limit threshold value Vth21.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: April 16, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Mamoru Kubo
  • Patent number: 10177626
    Abstract: A cover member has a cylinder in the center of a cover part. A second sliding bearing is fastened to the cylinder. A rotary shaft protrudes upward from the cylinder without contact with the second sliding bearing. A first sliding bearing is a main bearing, which can radially support the rotary shaft, and the second sliding bearing is an auxiliary bearing which, when the rotary shaft is subjected to a load from the radial direction, bears that load in the radial direction together with the first sliding bearing. When the angle of inclination of the rotary shaft in the first sliding bearing is not maximal, the rotary shaft is supported only by the first sliding bearing, without the rotary shaft contacting the inside of the second sliding bearing. The amount of deformation of the rotary shaft when a load is applied to the rotary shaft from the radial direction and the rotary shaft first makes contact with the second sliding bearing is in a range from 0 to the maximum elastic deformation.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: January 8, 2019
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahiro Nishidate
  • Patent number: 9972457
    Abstract: Guide grooves are formed in a peripheral sidewall of a soft button, and a hard cap is separably connected to the button by fitting legs on the cap into these guide grooves. Furthermore, when a push-operation member on the cap is pushed, the legs are guided in the guide grooves, while the press stroke of the push-operation member is regulated by the bottom ends of the legs coming into contact with the top face of an inner flange on the case.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: May 15, 2018
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Takahisa Kitahara
  • Patent number: 9761388
    Abstract: A push switch is provided with a switch case, a push button, a switch component, a terminal member and a lead wire. The terminal member has a flat part and a first suspended part suspended from one end of the flat part. The flat part includes a first connecting part to which the connecting terminal is connected without soldering. The first suspended part includes a second connecting part to which the lead wire is connected without soldering. The switch case has first support part for supporting the lead wire which is inserted into the space, and second support part for supporting the flat part of the terminal member.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: September 12, 2017
    Assignee: TOKYO PARTS INDUSTRIAL CO., LTD.
    Inventor: Takahisa Kitahara
  • Patent number: 9716418
    Abstract: A electrically insulating member, which covers a stator core, has a plurality of engagement claws, which extend in the axial direction of a rotary shaft, and a plurality of positioning projections, at positions in the circumferential direction differing from those of the engagement claws, which extend further than the engagement claws. A sensor board, on which a plurality of magnetic sensors are fixed in place, has engagement parts, which engage with the engagement claws, and positioning recesses, into which the positioning projections are inserted.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: July 25, 2017
    Assignee: Tokyo Parts Industrial Co., Ltd
    Inventor: Masahiro Nishidate
  • Patent number: 9413210
    Abstract: A rotor type brushless motor comprises a drive magnet having an indexing pole part that extends on one axial side thereof. This indexing pole part is formed at least in the range from the circumferential center of one north pole to the circumferential center of one adjacent south pole, and over no greater than the range from one circumferential end of the one north pole to the other circumferential end of the one south pole. A magnetic flux detector is arranged at a position axially facing the indexing pole part.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 9, 2016
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Masahisa Tuchiya
  • Patent number: 9383446
    Abstract: A motion sensor comprises: a plurality of first light emitting elements, which emit lights having mutually different characteristics in the region of movement of the object to be detected; a light receiving element, which receives reflected light that is emitted from the first light emitting elements and reflected by the object to be detected; a second light emitting element, which emits light towards the light receiving element; and a separation member. A light guiding part, which guides light emitted from the second light emitting element so as directly irradiate the light receiving element, without passing through the region of movement of the object to be detected, and light blocking parts, which block light so that light from the first light emitting elements does not directly irradiate the light receiving element, are formed integrally with the separation member.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: July 5, 2016
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Takami Sawaguchi