Patents by Inventor Kazuki HIRAMATSU

Kazuki HIRAMATSU 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: 11936003
    Abstract: A battery includes a wound electrode assembly. The wound electrode assembly has a flat shape. The wound electrode assembly includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate. The first separator, the positive electrode plate, the second separator, and the negative electrode plate are stacked in this order and then wound spirally. In a cross section perpendicular to a winding axis of the wound electrode assembly, the first separator has a first winding start edge inside an innermost circumference of the wound electrode assembly; the second separator has a second winding start edge inside the innermost circumference of the wound electrode assembly; the first winding start edge faces the second winding start edge with the winding axis interposed therebetween; and the first winding start edge is located apart from the second winding start edge.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: March 19, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Shuji Ogawa, Takafumi Tsukagoshi, Kazuya Ikeshita, Kazuki Hiramatsu
  • Publication number: 20230033981
    Abstract: A connector 10 is provided with an inner conductor 13 to be connected to a wire 18, a dielectric 14 for accommodating the inner conductor 13, and an electrically conductive impedance adjusting member 12 to be mounted on the wire. The inner conductor 13 includes a base portion 33 and an insulation barrel piece 35 rising from the base portion 33 and to be crimped to a coating 23 of the wire 18. The insulation barrel piece 35 includes an inclined portion 39 inclined toward the impedance adjusting member 12 with distance from the base portion 33 on an end edge on a side facing the impedance adjusting member 12.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Hidekazu MATSUDA, Kazuki HIRAMATSU, Taiga KADOYAMA, Maika IDO, Masanao YAMASHITA
  • Publication number: 20230031237
    Abstract: A male connection surface of the male dielectric and a female connection surface of the female dielectric are facing each other and an elongated tab of the male inner conductor projects from the male connection surface and is inserted in the female inner conductor with the male connector and the female connector connected. A thin portion shaped by cutting an outer surface of the male dielectric and configured to surround a base end portion of the tab is formed on an end part of the male dielectric on the side of the male connection surface. The female outer conductor is formed with an impedance adjusting portion configured to proximately cover an outer surface of the thin portion.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Hidekazu MATSUDA, Kazuki HIRAMATSU, Taiga KADOYAMA, Masanao YAMASHITA
  • Publication number: 20230033745
    Abstract: A connector 10 is provided with a terminal 11, a die-cast member 13 for surrounding an outer periphery of the terminal 11, a dielectric 12 to be arranged between the terminal 11 and the die-cast member 13, and a housing 14 into which the die-cast member 13 is mounted. The die-cast member 13 includes a locking protrusion 37, and the housing 14 includes a locking recess 49 recessed in a mounting direction of the die-cast member 13. The locking protrusion 37 is press-fit into the locking recess 49. A closing portion 53 shut off from outside is formed between a tip part of the locking protrusion 37 in the mounting direction and a back end part of the locking recess 49 in the mounting direction.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Kazuki HIRAMATSU, Taiga KADOYAMA, Hidekazu MATSUDA, Toshikazu SUZUKI, Toshifumi ICHIO
  • Publication number: 20230033546
    Abstract: A connector 10 is provided with an outer conductor 20, a plurality of dielectrics 19 to be accommodated into the outer conductor 20, inner conductors 18 to be mounted into the respective dielectrics 19, a shield member 25 to be arranged between the dielectrics 19 adjacent in the outer conductor 20, and a locking portion 26 for locking the shield member 25 to the dielectric 19.
    Type: Application
    Filed: July 22, 2022
    Publication date: February 2, 2023
    Inventors: Kazuki HIRAMATSU, Taiga KADOYAMA, Hidekazu MATSUDA, Masanao YAMASHITA
  • Publication number: 20230035192
    Abstract: The first connector includes a first inner conductor, a first outer conductor, a first outer conductor cover and a first dielectric. The second connector includes a second inner conductor, a second outer conductor, a second outer conductor cover and a second dielectric. The second outer conductor includes a second outer conductor connecting portion overlapping the first outer conductor in a radial direction. The first outer conductor includes a first outer conductor body portion, a first outer conductor connecting portion for covering the outer periphery of the second outer conductor connecting portion and contacting the second outer conductor connecting portion, and a constricted portion reduced in dimensions from the first outer conductor connecting portion to the first outer conductor body portion. The first outer conductor cover and the second outer conductor cover have the same shape.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Hidekazu MATSUDA, Kazuki HIRAMATSU, Taiga KADOYAMA, Masanao YAMASHITA
  • Publication number: 20230034078
    Abstract: A shield connector is provided with a dielectric 40 including a plurality of accommodation chambers 44 defined in a width direction by a separation wall portion 43, and a plurality of inner conductors 21 having a shape elongated in a front-rear direction and individually accommodated in parallel in the plurality of accommodation chambers 44. The separation wall portion 43 is formed with a front opening 53 and a rear opening 60 for interposing air layers between the accommodation chambers 44 adjacent via the separation wall portion 43.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Inventors: Hidekazu MATSUDA, Kazuki HIRAMATSU, Taiga KADOYAMA, Ai HIRANO, Masanao YAMASHITA
  • Patent number: 11349252
    Abstract: A connector is provided with a housing 10, a front seal portion 36 to be arranged to face a front surface of the housing 10, and a front wall portion 41 to be arranged to face a front surface of the front seal portion 36. The housing 10 includes cavities 17, deflectable locking lances 19 projecting into the cavities 17, and space portions 20 located in a deflection direction of the locking lances 19. The front wall portion 41 includes detection pieces 44 projecting rearward, tip sides of the detection pieces 44 being arranged in the space portions 20. The front seal portion 36 includes detection-side seal holes 40 to be held in close contact with base end sides of the detection pieces 44. The base end sides of the detection pieces 44 have a circular cross-sectional shape corresponding to the detection-side seal holes 40.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: May 31, 2022
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Kazuki Hiramatsu, Masakazu Suzuki
  • Patent number: 11342710
    Abstract: A lever 50 is arranged movably from a partial locking position before connection of both housings 10, 90 and a full locking position after the connection with respect to the housing 10. Entrances 56 of cam grooves 54, 55 of the lever 50 are open in an edge part of the lever 50. The housing 10 includes a lock piece 31 resiliently displaceable in a direction intersecting a moving direction of the lever 50 to the full locking position. The lock piece 31 includes a lock portion 35 arranged at entrances 56 of the cam grooves 54, 55 and facing inner surfaces of the entrances 56 with the lever 50 located at the partial locking position. The lock portion 35 includes a protruding portion 37 projecting from the entrances 56 of the cam grooves 54, 55.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: May 24, 2022
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Kazuki Hiramatsu, Masakazu Suzuki
  • Patent number: 11322879
    Abstract: A connector is provided with a rear seal portion to be arranged to face a rear surface of a housing, and a rear wall portion to be arranged to face a rear surface of the rear seal portion. The housing includes a lock piece projecting rearward from the rear surface and the lock piece includes a lock portion on a tip side. The rear seal portion includes a lock-side seal hole to be held in close contact with a base end side of the lock piece and a sealing surface to be held in close contact with a mating housing on an outer peripheral side. The rear wall portion includes a lock receiving portion to be locked by the lock portion on an inner surface of a through hole. Out of an outer part and an inner part, the lock receiving portion is provided on the inner part.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Kazuki Hiramatsu, Masakazu Suzuki
  • Publication number: 20220131197
    Abstract: A battery includes a wound electrode assembly. The wound electrode assembly has a flat shape. The wound electrode assembly includes a first separator, a positive electrode plate, a second separator, and a negative electrode plate. The first separator, the positive electrode plate, the second separator, and the negative electrode plate are stacked in this order and then wound spirally. In a cross section perpendicular to a winding axis of the wound electrode assembly, the first separator has a first winding start edge inside an innermost circumference of the wound electrode assembly; the second separator has a second winding start edge inside the innermost circumference of the wound electrode assembly; the first winding start edge faces the second winding start edge with the winding axis interposed therebetween; and the first winding start edge is located apart from the second winding start edge.
    Type: Application
    Filed: October 13, 2021
    Publication date: April 28, 2022
    Inventors: Shuji OGAWA, Takafumi TSUKAGOSHI, Kazuya IKESHITA, Kazuki HIRAMATSU
  • Publication number: 20210151930
    Abstract: A connector is provided with a housing 10, a front seal portion 36 to be arranged to face a front surface of the housing 10, and a front wall portion 41 to be arranged to face a front surface of the front seal portion 36. The housing 10 includes cavities 17, deflectable locking lances 19 projecting into the cavities 17, and space portions 20 located in a deflection direction of the locking lances 19. The front wall portion 41 includes detection pieces 44 projecting rearward, tip sides of the detection pieces 44 being arranged in the space portions 20. The front seal portion 36 includes detection-side seal holes 40 to be held in close contact with base end sides of the detection pieces 44. The base end sides of the detection pieces 44 have a circular cross-sectional shape corresponding to the detection-side seal holes 40.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 20, 2021
    Inventors: Kazuki HIRAMATSU, Masakazu SUZUKI
  • Publication number: 20210151936
    Abstract: A lever 50 is arranged movably from a partial locking position before connection of both housings 10, 90 and a full locking position after the connection with respect to the housing 10. Entrances 56 of cam grooves 54, 55 of the lever 50 are open in an edge part of the lever 50. The housing 10 includes a lock piece 31 resiliently displaceable in a direction intersecting a moving direction of the lever 50 to the full locking position. The lock piece 31 includes a lock portion 35 arranged at entrances 56 of the cam grooves 54, 55 and facing inner surfaces of the entrances 56 with the lever 50 located at the partial locking position. The lock portion 35 includes a protruding portion 37 projecting from the entrances 56 of the cam grooves 54, 55.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 20, 2021
    Inventors: Kazuki HIRAMATSU, Masakazu SUZUKI
  • Publication number: 20210151926
    Abstract: A connector is provided with a rear seal portion to be arranged to face a rear surface of a housing, and a rear wall portion to be arranged to face a rear surface of the rear seal portion. The housing includes a lock piece projecting rearward from the rear surface and the lock piece includes a lock portion on a tip side. The rear seal portion includes a lock-side seal hole to be held in close contact with a base end side of the lock piece and a sealing surface to be held in close contact with a mating housing on an outer peripheral side. The rear wall portion includes a lock receiving portion to be locked by the lock portion on an inner surface of a through hole. Out of an outer part and an inner part, the lock receiving portion is provided on the inner part.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 20, 2021
    Inventors: Kazuki HIRAMATSU, Masakazu SUZUKI
  • Publication number: 20190264745
    Abstract: A spline-processing method is used for a wheel bearing. The wheel bearing includes outer and inner members. The inner member has formed on its inner periphery an interference-defined spline having a guide spline formed at an inboard-side end portion thereof. An intermediate component of the inner member includes a spline-formation inner peripheral surface having the interference-defined spline and the guide spline formed thereon, and a relief portion, which is formed on an outboard side with respect to the spline-formation inner peripheral surface, and has a diameter larger than that of the spline-formation inner peripheral surface. A punch used for the spline processing includes an integrated spline punch having an interference-defined spline forming surface to form the interference-defined spline, and a guide spline forming surface to form the guide spline. The integrated spline punch presses the spline-formation inner peripheral surface to form the interference-defined spline and the guide spline.
    Type: Application
    Filed: November 9, 2017
    Publication date: August 29, 2019
    Inventors: Kazuki HIRAMATSU, Hiroshi MATSUNAGA, Takuya FUJITA