Patents by Inventor Tadashi Takeda

Tadashi Takeda 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: 20200161038
    Abstract: In the actuator, the first end plate part of the first cover member in the support body is layered on one side in the first direction of the holder and faces the first yoke of the movable body from one side in the first direction. The second end plate part of the second cover member in the support body is layered on the other side in the first direction of the holder and faces the movable body from the other side in the first direction. Thus, the first viscoelastic member interposed between the movable body and the first end plate part in the first direction properly contacts with the movable body and the first end plate part. The second viscoelastic member interposed between the movable body and the second end plate part in the first direction properly contacts with the movable body and the second end plate part.
    Type: Application
    Filed: June 11, 2018
    Publication date: May 21, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Masao TSUCHIHASHI, Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20200161955
    Abstract: In the actuator, the viscoelastic members are arranged at positions at which the support body and the movable body face each other in the first direction, and the magnetic drive circuit drives the movable body in the second direction which crosses the first direction. The viscoelastic members connect the movable body and the support body together while having the thickness direction thereof in the first direction and extending in the second direction. Therefore, resonance caused when the movable body is vibrated can be restricted. Reproducibility of vibration acceleration corresponding to the input signals can be improved by utilizing the spring elements of the viscoelastic members in the shearing direction, thus enabling the actuator to vibrate with delicate nuances. Further, the viscoelastic members can be prevented from being pressed in the thickness direction and greatly deformed, therefore, preventing the gap between the movable body and the support body from greatly varying.
    Type: Application
    Filed: June 11, 2018
    Publication date: May 21, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Hiroshi KITAHARA, Tadashi TAKEDA, Masao TSUCHIHASHI
  • Publication number: 20200161954
    Abstract: In a magnetic drive circuit of an actuator, a first yoke and a second yoke are disposed on both sides in a first direction across a coil, and a first magnet and a second magnet are fixed to the first yoke and the second yoke. The first yoke includes a first connecting plate part and a second connecting plate part that extend toward the second yoke. Thus, welding of the first connecting plate part and the second yoke and the second connecting plate part and the second yoke can be efficiently performed on a different side in the first direction (a side where the second yoke is located).
    Type: Application
    Filed: June 11, 2018
    Publication date: May 21, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Masao TSUCHIHASHI, Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20200142489
    Abstract: An input device (100) has an input unit (1) provided with a touch panel (13), a frame (2) that surrounds the outer periphery of the input unit (1), and an actuator (3) that causes the input unit (1) to vibrate in the X direction. The input unit (1) and the frame (2) are configured such that even if the relative positions of the frame (2) and an outer periphery (5), which face each other in the in-plane direction of the touch panel (13), were to change due to the vibration of the input unit (1), this change tends not to be perceived as a visual change by a user, making it difficult to perceive the movement.
    Type: Application
    Filed: June 11, 2018
    Publication date: May 7, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Goro NAKAMURA, Tadashi TAKEDA, Hiroshi KITAHARA
  • Patent number: 10634836
    Abstract: There is provided a circularly polarizing plate for an organic EL display apparatus that is excellent in productivity, is prevented from warping, and can achieve an excellent tint. An elongated circularly polarizing plate for an organic EL display apparatus according to an embodiment of the present invention includes in the following order: an elongated polarizer having an absorption axis in a longitudinal direction thereof; an elongated first retardation layer functioning as a ?/2 plate; and an elongated second retardation layer functioning as a ?/4 plate. An angle formed between the absorption axis of the elongated polarizer and a slow axis of the elongated first retardation layer is front 15° to 30°; and the absorption axis of the elongated polarizer and a slow axis of the elongated second retardation layer are substantially perpendicular to each other.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: April 28, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kentarou Takeda, Hironori Yaginuma, Kazuki Uwada, Tadashi Kojima, Nao Murakami
  • Publication number: 20200126767
    Abstract: A plasma processing apparatus includes a balun having a first unbalanced terminal, a second unbalanced terminal, a first balanced terminal, and a second balanced terminal, a grounded vacuum container, a first electrode electrically connected to the first balanced terminal, a second electrode electrically connected to the second balanced terminal, and a ground electrode arranged in the vacuum container and grounded.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 23, 2020
    Applicant: Canon Anelva Corporation
    Inventors: Atsushi TAKEDA, Takayuki MORIWAKI, Tadashi INOUE, Masaharu TANABE, Kazunari SEKIYA, Hiroshi SASAMOTO, Tatsunori SATO, Nobuaki TSUCHIYA
  • Patent number: 10608375
    Abstract: A connector assembly comprises a first connector and a second connector matable with the first connector in a mating direction. The first connector includes a housing and a slider held by the housing and slidable with respect to the housing in a direction intersecting the mating direction. The slider has a slider backlash restraining device disposed on an inner wall. The slider slides in a first direction to cause the second connector to move in the mating direction and slides in a second direction opposite to the first direction to cause the second connector to move in a direction opposite to the mating direction. The second connector has a connector backlash restraining device disposed on an outer wall of the second connector. The slider backlash restraining device abuts the connector backlash restraining device when the first connector is mated with the second connector.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 31, 2020
    Assignees: Tyco Electronics Japan G.K., Honda Motor Co., Ltd.
    Inventors: Hidetaka Homme, Koji Inose, Motoki Harada, Yuichi Takeda, Tadashi Niino
  • Patent number: 10602279
    Abstract: A linear actuator may include a movable element having a plurality of permanent magnets stacked in a direction of an axis line; a stationary element comprising a plurality of coils surrounding a circumferential section of the permanent magnets, the plurality of coils being placed along the axis line; and viscous elastic members inserted between the movable element and the stationary element. The plurality of permanent magnets are arranged such that, among adjacent permanent magnets of the plurality of permanent magnets, sides of the adjacent permanent magnets facing each other have a same polarity. The viscous elastic members are provided at a plurality of locations being separate in the direction of the axis line, in a space sandwiched in a radial direction by the movable element and the stationary element.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: March 24, 2020
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Hiroshi Kitahara, Masao Tsuchihashi
  • Publication number: 20200083787
    Abstract: A laser welding method for coil wires includes welding two coil wires by irradiating a laser beam to an upper end edge of butted surfaces of side surfaces of tip end portions of the two coil wires. At this time, a molten pool is formed at the center of a welding portion on the upper end edge by scanning the laser beam in a plurality of continuous loop shapes from one or both welding end portions, and welding is performed to make the molten pool at the center portion of the welding portion greater in welding depth than other molten pools by controlling at least one among a movement pitch, a loop area, a laser scanning speed, and a laser power of loops of the laser beam.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 12, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Tadashi FUJIYOSHI, Yasuyuki HIRAO, Yoshiki YAMAUCHI, Hiroaki TAKEDA, Masaya NAKAMURA
  • Publication number: 20200059147
    Abstract: An actuator is provided. In the actuator, a first magnetic drive circuit and a third magnetic drive circuit that vibrate a movable body in a second direction with respect to a support are provided respectively on both sides in a first direction. A second magnetic drive circuit that vibrates the movable body in a third direction with respect to the support is provided. The first magnetic drive circuit, the second magnetic drive circuit and the third magnetic drive circuit are arranged to be sequentially stacked from one side to the other side in the first direction.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 20, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Hiroshi KITAHARA, Tadashi TAKEDA, Masao TSUCHIHASHI
  • Publication number: 20200059148
    Abstract: An actuator (1) is provided A substrate (15) held by a support (2) is provided with a total of six power supply electrodes (153) electrically connected respectively to both ends of a first coil (61) of a first magnetic drive circuit (6) that vibrates a movable body (3) in an X direction, both ends of a second coil (71) of a second magnetic drive circuit (7) that vibrates the movable body (3) in a Y direction, and both ends of a third coil (81) of a third magnetic drive circuit (8) that vibrates the movable body (3) in the X direction. An opening (110) that exposes the six power supply electrodes (153) is formed in a cover (11).
    Type: Application
    Filed: March 23, 2018
    Publication date: February 20, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Hiroshi KITAHARA, Tadashi TAKEDA, Masao TSUCHIHASHI
  • Publication number: 20200059145
    Abstract: An actuator is provided. In order to reduce the planar area of an actuator, a first magnetic drive circuit and a third magnetic drive circuit that vibrate a movable body in an X direction with respect to a support are provided respectively on both sides, in a Z direction, of a second magnetic drive circuit that vibrates the movable body in a Y direction with respect to the support. The movable ranges, in the X direction and the Y direction, of the movable body with respect to the support are regulated by a stopper mechanism constituted between a first magnet and a first coil holder holding a first coil, a stopper mechanism constituted between a second magnet and a second coil holder holding a second coil, and a stopper mechanism constituted between a third magnet and a third coil holder holding a third coil.
    Type: Application
    Filed: March 23, 2018
    Publication date: February 20, 2020
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Hiroshi KITAHARA, Tadashi TAKEDA, Masao TSUCHIHASHI
  • Publication number: 20200044541
    Abstract: A linear actuator can properly drive a movable body even if a viscoelastic body is provided between the movable body and a fixed body. For example, a linear actuator 1 includes a fixed body 2, a movable body 6, a magnetic drive mechanism 5 configured to linearly drive the movable body 6 with respect to the fixed body 2, and a viscoelastic body 9 made of a silicone gel or the like where the viscoelastic body 9 is arranged between the fixed body 2 and the movable body 6. In a case 3 of the fixed body 2 and a first yoke 7 of the movable body 6, the viscoelastic body 9 is arranged between a fixed body side flat surface unit (such as a first fixed plate 331 and a second fixed plate 332) facing parallel to a first direction and a second direction Y orthogonal to a drive direction Z by the magnetic drive mechanism 5 and a movable body side flat surface unit (such as a first side plate unit 76 and a second side plate unit 77).
    Type: Application
    Filed: August 3, 2017
    Publication date: February 6, 2020
    Inventors: TADASHI TAKEDA, HIROSHI KITAHARA, MASAO TSUCHIHASHI
  • Publication number: 20190305660
    Abstract: An actuator may include a movable body; a support body; a connecting body arranged where the movable body and the support body face each other to contact both of the movable body and the support body; and a magnetic drive circuit. The magnetic drive circuit may include an air-core coil provided on a first-side member among the movable body and the support body; and a permanent magnet provided on a second-side member among the movable body and the support body to face the coil in a first direction, the magnetic drive circuit being configured to vibrate the movable body with respect to the support body in a second direction crossing the first direction. In the first-side member, the coil may be fixed by an adhesive to a surface of a plate-shaped coil holder on a first side in the first direction while an air-cores is directed in the first direction.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Masao TSUCHIHASHI, Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20190286238
    Abstract: A touch panel-equipped display device (100A) includes a display member (120), a light transmitting touch panel (130) arranged to overlap with the display member (120), a panel holder (140A) configured to support the display member (120), and an actuator (1) configured to transmit vibration in an in-plane direction of an input surface (115) to an input member (110) configuring the input surface (115) for the touch panel (130). The input member (110) is supported by the panel holder (140A) via a first elastic member (180A) having at least one of elasticity and viscoelasticity. Further, the actuator (1) is not connected to the panel holder (140A). Therefore, even if an operator strongly presses the input surface (151), the vibration of the actuator (1) can be properly transmitted to a fingertip of the operator.
    Type: Application
    Filed: October 17, 2017
    Publication date: September 19, 2019
    Applicant: NIDEC SANKYO CORPORATION
    Inventors: Akihiro YAHATA, Tadashi TAKEDA, Hiroshi KITAHARA, Jinichi ITO
  • Patent number: 10411575
    Abstract: A linear actuator may include a stator; a movable element; a spring member connected to the movable element and the stator and structured to support the movable element in such a way as to be movable with respect to the stator in a direction of an axis line; a magnetic drive mechanism structured to drive the movable element in the direction of the axis line; and a gel damper member placed at a position on a center line of the movable element or one of a group of positions surrounding the center line, between the stator and the movable element.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 10, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Hiroshi Kitahara, Takeshi Sue
  • Patent number: 10404151
    Abstract: A planetary gear speed reduction device may include a magnetic sun gear; a plurality of magnetic planetary gears which each revolve around the magnetic sun gear while rotating; and a magnetic internal gear arranged surrounding the multiple magnetic planetary gears from an outer circumferential side. An outside diameter of the magnetic sun gear and an outside diameter of the magnetic planetary gears may be equal.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: September 3, 2019
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Masaaki Ando, Tadashi Takeda, Shinichi Yoshikawa, Toshifumi Tsuruta
  • Publication number: 20190238039
    Abstract: An actuator may include a supporting body; a movable body; a first magnetic drive circuit; a second magnetic drive circuit. The first magnetic drive circuit may include a first coil and a first magnet. The second magnetic drive circuit may include a second coil and a second magnet. The actuator may further include a first yoke on a side of the first coil remote from the second coil; a second yoke on a side of the second coil remote from the first coil; and a third yoke between the first coil and the second coil. The first magnet may be held on a face of the first yoke or a face of the third yoke. The second magnet may be held on a face of the second yoke or a face of the third yoke. The third yoke may be thicker than the first and second yoke.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventors: Masao TSUCHIHASHI, Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20190238042
    Abstract: An actuator may include a supporting body; a movable body shiftable relative to the supporting body; a first magnetic drive circuit comprising a first coil and a first magnet; a second magnetic drive circuit comprising a second coil and a second magnet adjacent to each other; a first coil holder supporting the first coil; and a second coil holder holding the second coil and aligned with the first coil holder in the first direction. The first coil holder and the second coil holder each may include a plurality of bottomed holes having openings in regions where the first coil holder and the second coil holder are disposed adjacent to each other. The first coil holder and the second coil holder may be positioned with pins fit to the holes.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Inventors: Masao TSUCHIHASHI, Tadashi TAKEDA, Hiroshi KITAHARA
  • Publication number: 20190238040
    Abstract: An actuator may include a supporting body; a movable body; a first drive circuit; a second drive circuit; and a wiring board. The first drive circuit may include a first coil and a first magnet. The second drive circuit may include a second coil and a second magnet. The wiring board may include a first portion on a first side of the wiring board; a bent portion bent from the first portion toward a second side of the wiring board; a second portion extending from the bent portion and disposed on a first side of the wiring board; a first terminal disposed on the first portion or the second portion and connected to the first coil. A second terminal disposed the other of the first portion and the second portion and connected to the second coil; and a plurality of third terminals disposed on the second portion.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 1, 2019
    Inventors: Masao TSUCHIHASHI, Tadashi TAKEDA, Hiroshi KITAHARA