Patents Assigned to Mikuni Corporation
  • Publication number: 20240337230
    Abstract: An intake manifold 2 suitable for an engine includes: a surge tank 100, die-molded to temporarily store intake air; and a plurality of branch pipes 211, 212, 213, 311, 312, 313, in communication with the surge tank. The surge tank 100 includes: a boss part 111, having a cylindrical shape; and boss reinforcement ribs 114, extending in a direction toward a center S of the boss part and connected with the boss part, the boss part and the boss reinforcement ribs being integrally formed on an outer wall of the surge tank.
    Type: Application
    Filed: March 1, 2024
    Publication date: October 10, 2024
    Applicant: MIKUNI CORPORATION
    Inventor: Hirobumi OOSAWA
  • Publication number: 20240337231
    Abstract: An intake manifold includes: a surge tank, die-molded to temporarily store intake air; and branch pipes, in communication with the surge tank. The surge tank includes, on an outer wall thereof, a flange part and a reinforcement rib, a sensor unit configured to detect an intake air state quantity being installed to the a part. The flange part includes: a fitting hole, having an axis as a center to be fit with a detection part of the sensor unit; and boss parts, provided on a periphery of the fitting hole, and the flange part is formed to be rotationally symmetric with the axis as a center. The reinforcement rib includes a limitation piece interfering with a portion of the sensor unit to limit assembling at a time when the sensor unit is assembled erroneously for being deviated from a normal orientation.
    Type: Application
    Filed: February 27, 2024
    Publication date: October 10, 2024
    Applicant: MIKUNI CORPORATION
    Inventor: Hirobumi OOSAWA
  • Publication number: 20240328377
    Abstract: An intake manifold M1 includes: a surge tank 10, formed in an elongated tubular shape in a direction of a predetermined axis S; branch pipes 20, extending from the surge tank; an upstream tubular part 50, continuous on an upstream side of the surge tank; an opening part 60, open at an upstream end of the upstream tubular part; a flange part 70, formed around the opening part; an annular seal groove 80, formed at the flange part around the opening part; and fastening parts 90, formed at the flange part around the annular seal groove to fasten a throttle unit. A groove width of the annular seal groove 80 is formed to decrease in the vicinity of the fastening part.
    Type: Application
    Filed: December 25, 2023
    Publication date: October 3, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Natthavud Songprasert, Hiroyuki YANAZAWA
  • Patent number: 12066019
    Abstract: An electric oil pump includes a pump unit, rotating to make oil flow, a motor driving the pump unit, a control unit exerting driving control on the motor, and a housing accommodating the pump unit, the motor, and the motor control unit. In the electric oil pump, the motor control unit directly receives detection information of a temperature sensor detecting a temperature of the oil and exerts driving control on the motor based on the detection information.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: August 20, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Osamu Miura, Yasuaki Ota, Takashi Doi
  • Patent number: 12013192
    Abstract: A valve device 1 includes a rotational shaft 2, and a valve body 4 internally forming a space 10 and rotatable about the rotational shaft 2, the valve body 4 having an outer circumferential surface 28 where a first communication hole 36 and a bottomed groove 38 are formed, the first communication hole 36 communicating with the space 10, the bottomed groove 38 extending from the first communication hole 36 toward one side in a rotational direction of the rotational shaft 2, and the groove 38 including a first section 40 in which at least one of a depth D of the groove 38 and a width W of the groove 38 increases toward the first communication hole 36.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: June 18, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Takuya Kawasaki, Toshiaki Fujitani
  • Patent number: 11981202
    Abstract: An accelerator pedal device according to the present invention is provided with: a pedal arm (30) having an accelerator pedal; a resin housing (10) for supporting the pedal arm such that the pedal arm is swivelable about a prescribed axial line (S) between a rest position and a maximum stepping position; and a return spring (40) that applies a biasing force for returning the pedal arm to the rest position. The housing includes: a boss section (11i) through which a bolt (B) for fixing the housing to a vehicle body is made to pass; and a full open stopper (11n) for specifying the maximum stepping position in the vicinity of the boss section.
    Type: Grant
    Filed: February 29, 2020
    Date of Patent: May 14, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Jun Nagashima, Satoshi Miyazaki, Takahiro Urano
  • Patent number: 11982270
    Abstract: The pump device includes a housing defining insertion holes for a rotation shaft, inlets and outlets, and an internal passage; a first pump element; and a second pump element. The internal passage includes first suction passages communicating from the inlet to a first suction port facing the first end surface of the first pump element directed to one end side; first discharge passages communicating from a first discharge port facing the first end surface to the outlet; second suction passages passing around the first pump element to communicate from the inlet to a second suction port facing the second end surface of the second pump element; and second discharge passages passing around the first pump element to communicate from a second discharge port facing the second end surface to the outlet.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: May 14, 2024
    Assignee: MIKUNI CORPORATION
    Inventor: Yasuhiro Ino
  • Patent number: 11971116
    Abstract: A rotary-type valve device is provided, and includes: a tubular valve having an inner passage Ip and opening parts opened in an outer circumferential wall and rotating about a predetermined axial line a shaft rotating integrally with the valve, a housing accommodating the valve, supporting the shaft to be able to turn, and defining a communication port causing the inner passage to communicate with outside; a passage member assembled in the housing such that that the passage member abuts on an outer circumferential wall of the valve and defining a radial-direction passage. The valve includes a recessed part in the axial line direction and surrounding one end part of the shaft. The housing includes a tube part inserted into the recessed part and supporting the one end part and a support hole supporting the other end part of the shaft.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: April 30, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Yasuhiro Tochigi, Shoichi Ishiguchi
  • Publication number: 20240125276
    Abstract: Provided is an electric throttle valve 10 including: a valve body 16 including an accommodating space 19 therein and having an opening 25 that faces the accommodating space 19; a cover 11 secured to the valve body and covering the opening 25; and an electric motor 12 and a sensor 60 installed in the accommodating space 19, the cover 11 including a connector 30 for connection of a wiring between the electric motor 12 or the sensor 60 and outside, the connector 30 being installed in a desired direction with respect to the cover 11 and secured to the cover 11.
    Type: Application
    Filed: March 17, 2021
    Publication date: April 18, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Yuuhei SANEKATA, Keigo SUZUKI, Yuusaku IDE, Kazuo MATSUMOTO
  • Publication number: 20240117774
    Abstract: A torsion coil spring biasing and rotating a drive gear of a valve device in one direction and defining a rotation position of a valve body when an electric motor is not operating is included, one end of the torsion coil spring is locked at any one of two locking portions provided at the drive gear, the other end is locked at a casing rotatably supporting the valve shaft, the drive gear is a plate-shaped members including two locking portions and formed linearly symmetrically, the locking portions are formed into hook shapes including extending portions extending in a direction away from an inner surface of the drive gear and distal end portions projecting along the inner surface from distal ends of the extending portions. The drive gear includes openings at positions at which the openings overlap the distal end portions in a view in a direction of the axial line.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 11, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Yuuhei SANEKATA, Keigo SUZUKI, Taiki TAGAYA
  • Publication number: 20240117773
    Abstract: In a valve device including: a plate-shaped drive gear provided at an end of a valve shaft made of metal; and, at the drive gear, a detection target of an inductive sensor detecting a rotation angle of the valve shaft, the drive gear has a lever member made of metal and integrated through insert molding in which a part thereof is exposed in the inner surface, the detection target is integrated along with the lever member through the insert molding on a side of the outer surface of the drive gear, and an exposure portion of the lever member at the drive gear including the lever member and the detection target and the end of the valve shaft are caused to abut each other, and a rear side of the abutting part is laser-welded from the side of an outer hole and is fixed thereby to configure a shaft unit.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 11, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Yuuhei SANEKATA, Keigo SUZUKI
  • Publication number: 20240117894
    Abstract: A valve device includes a drive gear made of a resin at one end of the valve shaft and includes a detection target of an inductive sensor in the drive gear, the drive gear includes a lever member made of metal and integrated along with the detection target through insert molding in a state where a center portion is exposed in one side surface, an exposure portion of the lever member in the drive gear and the end of the valve shaft are caused to abut each other and rear surfaces of the abutting portions are fixed through laser welding through the outer hole to configure a valve shaft unit, and the lever member is provided with an arc hole extending in a circumferential direction on a radially outer side of the position of the welding with the end of the valve shaft.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 11, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Yuuhei SANEKATA, Keigo SUZUKI
  • Patent number: 11955869
    Abstract: A detection device of the present invention is provided with: a housing; a circuit substrate disposed in the housing; a sensor which is electrically connected to the circuit substrate and detects information of an object to be measured; a connector terminal which is formed integrally with the circuit substrate and electrically connected to an external terminal; and a tubular connector which is formed integrally with the housing, surrounds a periphery of the connector terminal, and is fitted in the external connector. Through this configuration, the reduction in the number of components, the reduction in cost and weight, the simplification of structure, and other effects can be achieved.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 9, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Ichiro Tsuji, Masaki Hiei
  • Patent number: 11940048
    Abstract: A valve device includes a body that defines a passage through which a fluid flows, a shaft that is movably supported with respect to the body and defines an axis, a valve element that is fixed to the shaft to open and close the passage; and a cylindrical bearing bush that movably supports the shaft with respect to the body, in which the bearing bush includes a mixed region in which a metal core material and expanded graphite are mixed with each other, and a first expanded graphite region made of only the expanded graphite such that the metal core material is not exposed in an inner circumferential side region in contact with an outer circumferential surface of the shaft.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: March 26, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Toshiaki Ishii, Makoto Koyama, Daisuke Takayama
  • Patent number: 11933200
    Abstract: A valve timing change device 2 comprises: a vane rotor 4; a housing 6 accommodating the vane rotor; a spring 8 contacting at one end portion 8b the housing and contacting at another end portion 8c the vane rotor to bias the vane rotor against the housing in a circumferential direction of the vane rotor; a first protruding portion 32 protruding from an end surface 6a of the housing on a first direction side of an axial direction of the vane rotor and contacting the one end portion of the spring so as to be biased by the spring; and a retaining portion 34 disposed on the first direction side of the one end portion of the spring and extending from the first protruding portion so as to restrict movement of the one end portion of the spring in the first direction. The first protruding portion and the retaining portion are formed integrally with the housing.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: March 19, 2024
    Assignee: MIKUNI CORPORATION
    Inventor: Riki Murasaka
  • Publication number: 20240084799
    Abstract: A pump device includes: a rotor unit that exerts a pumping action on fluid; a housing for defining a suction port, a discharge port, and a storage chamber that stores the rotor unit; and a rotary shaft that is combined with the rotor unit and protrudes outside the housing and that rotates about a predetermined axis line. The housing includes: a bottomed cylindrical housing body integrally having a joint wall that is joined to an application object, an outer peripheral wall that defines the storage chamber in cooperation with the joint wall, and a spigot joint part that protrudes from the joint wall in the axis line direction and that is fitted to the application object; and a plate-like housing cover that is combined with the housing body in order to close the storage chamber.
    Type: Application
    Filed: February 2, 2022
    Publication date: March 14, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Norio TAKEHANA, Takumi SASAKI
  • Publication number: 20240052940
    Abstract: A valve device includes: a housing H, defining an upstream side passage 41a and a downstream side passage 22a through which a fluid passes, a valve accommodation chamber h1 interposed between the upstream side passage and the downstream side passage, and an opening part 41b located at a downstream end of the upstream side passage; and a cantilevered valve body 30, disposed in the valve accommodation chamber, and having a support part 32 that is elastically deformable and cantilevered and, on a free end side of the support part, a valve part 31 that is plate-shaped and opening and closing the opening part. In the valve device, the downstream side passage 22a is formed to expand in a direction along a plane 31a, 31b of the valve part in a state in which the valve part 31 is fully opened.
    Type: Application
    Filed: June 8, 2023
    Publication date: February 15, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Satoshi SEKIGUCHI, Shoichi ISHIGUCHI
  • Publication number: 20240035420
    Abstract: The present invention provides a throttle device for an engine enabling an operation of fitting a support shaft supporting an intermediate gear into a positioning hole and an operation of causing the intermediate gear and a counterpart gear to mate with each other to be easily performed when a throttle body-side assembly and a gear cover-side assembly, which have individually been assembled, are coupled to each other.
    Type: Application
    Filed: July 6, 2023
    Publication date: February 1, 2024
    Applicant: MIKUNI CORPORATION
    Inventor: Shogo AKASE
  • Publication number: 20240035579
    Abstract: A valve device includes a housing and a cylindrical valve body. The housing defines: an inflow port; a first outflow port and a second outflow port which are opened apart in a circumferential direction and respectively have first and second opening widths; and an accommodation chamber. The valve body is arranged in the accommodation chamber to open and close the first and second outflow ports and includes: an internal passage; a first outflow communication port which expands in one direction in the circumferential direction continuously with a region facing the first outflow port, and has an opening width larger than the first opening width; and a second outflow communication port which expands in the other direction in the circumferential direction continuously with a region facing the second outflow port, and has an opening width larger than the second opening width.
    Type: Application
    Filed: June 1, 2023
    Publication date: February 1, 2024
    Applicant: MIKUNI CORPORATION
    Inventors: Hiroyuki KAWARAI, Yasuhiro Tochigi, Toshiaki Fujitani
  • Patent number: 11885421
    Abstract: A rotary-type valve device includes: a tubular valve having an inner passage and opening parts opened in an outer circumferential wall from the inner passage toward an outward side in a radial direction; a housing accommodating the valve and turnably supports the valve; a tubular passage member assembled in the housing such that the passage member abuts on the outer circumferential wall of the valve and defining a radial-direction passage; and a biasing spring biasing the passage member toward the outer circumferential wall The passage member includes an abutting member abutting on the outer circumferential wall, and an intervening member having an annular pressing part intervening between the abutting member and the biasing spring and partially pressurizing the abutting member. The abutting member includes an annular sealing surface aligned with the annular pressing part in a biasing direction of the biasing spring.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: January 30, 2024
    Assignee: MIKUNI CORPORATION
    Inventors: Yasuhiro Tochigi, Shoichi Ishiguchi