Patents by Inventor Yasukazu Chikamatsu

Yasukazu Chikamatsu 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: 11509090
    Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; and a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing projecting from the counterpart fitting portion, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member. The shield shell is provided with a bent portion between the flange portion and the fixed portion, and a bulging portion including an inner wall surface positioned inside a curve of the bent portion at an end portion in an extending direction of a bending line of the bent portion.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: November 22, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Satoki Masuda, Yasukazu Chikamatsu, Ayumu Ishikawa
  • Patent number: 11444409
    Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion, and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member; and an annular water stop member attached to the flange portion and pressed between the flange portion and the wall surface of the counterpart wall member. The shield shell is provided with a through hole provided in a bent portion between the flange portion and the fixed portion and causing inside and outside thereof to communicate with each other.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: September 13, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Satoki Masuda, Yasukazu Chikamatsu, Ayumu Ishikawa
  • Publication number: 20220052478
    Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion, and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member; and an annular water stop member attached to the flange portion and pressed between the flange portion and the wall surface of the counterpart wall member. The shield shell is provided with a through hole provided in a bent portion between the flange portion and the fixed portion and causing inside and outside thereof to communicate with each other.
    Type: Application
    Filed: July 23, 2021
    Publication date: February 17, 2022
    Applicant: Yazaki Corporation
    Inventors: Satoki MASUDA, Yasukazu Chikamatsu, Ayumu Ishikawa
  • Publication number: 20220052479
    Abstract: A connector includes: a terminal fitting; a housing containing the terminal fitting inside and provided with a fitting portion inserted and fitted into inside of a hole-shaped counterpart fitting portion of a counterpart wall member; and a shield shell including a cylindrical portion covering, from outside, a projecting portion of the housing projecting from the counterpart fitting portion, a flange portion projecting outer than an outer circumferential surface of the cylindrical portion and a fixed portion bent from an end portion of the flange portion and fixed on an end surface of the counterpart wall member. The shield shell is provided with a bent portion between the flange portion and the fixed portion, and a bulging portion including an inner wall surface positioned inside a curve of the bent portion at an end portion in an extending direction of a bending line of the bent portion.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 17, 2022
    Applicant: Yazaki Corporation
    Inventors: Satoki MASUDA, Yasukazu CHIKAMATSU, Ayumu ISHIKAWA
  • Patent number: 11181197
    Abstract: A seal member for waterproofing in the waterproof connector includes: a cylindrical inner tube portion that is face-to-face attached to an outer peripheral surface of a connector main body that is attached to a through-hole provided with a tapered opening; and an outer tube portion surrounding the inner tube portion in a circumferential direction at a rear side of an insertion direction into the tapered opening and opening in a larger diameter than the inner tube portion, and integrated with the inner tube portion at a front side in the insertion direction, and when the seal member is received between the outer peripheral surface of the connector main body and an inner peripheral surface of the tapered opening, face-to-face attached to the inner peripheral surface of the tapered opening while being pressed toward the inner tube portion.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: November 23, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Yasukazu Chikamatsu, Satoki Masuda
  • Publication number: 20200224767
    Abstract: A seal member for waterproofing in the waterproof connector includes: a cylindrical inner tube portion that is face-to-face attached to an outer peripheral surface of a connector main body that is attached to a through-hole provided with a tapered opening; and an outer tube portion surrounding the inner tube portion in a circumferential direction at a rear side of an insertion direction into the tapered opening and opening in a larger diameter than the inner tube portion, and integrated with the inner tube portion at a front side in the insertion direction, and when the seal member is received between the outer peripheral surface of the connector main body and an inner peripheral surface of the tapered opening, face-to-face attached to the inner peripheral surface of the tapered opening while being pressed toward the inner tube portion.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 16, 2020
    Applicant: Yazaki Corporation
    Inventors: Yasukazu Chikamatsu, Satoki Masuda
  • Patent number: 8007313
    Abstract: An attaching structure of a connector for attaching a connector to an attached portion, includes: a holding unit which holds the connector at an attaching position by sliding the connector in a direction of intersecting with a superimposing direction of the connector and the attached portion to superimpose the connector on the attached portion; and a pair of holes provided at the connector and the attached portion for passing a screw member by being communicated with each other when the connector is disposed at the attaching position.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: August 30, 2011
    Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Masahiro Deno, Yasukazu Chikamatsu, Bunji Nomura, Tsuyoshi Hayashi, Hajime Oyanagi
  • Patent number: 7948353
    Abstract: A power-circuit breaking device, which can easily mount a fuse and has a small number of component and a simple structure. The power-circuit breaking device includes a first connector housing having a pair of circuit terminals connected with a power circuit, and a second connector housing closing the power circuit by fitting with the first connector housing. The second connector housing includes a fuse having a pair of terminals to be connected with the pair of circuit terminals, a housing having a lock arm engaged with a cutout provided at the terminal and a cover an entry opening of a receiving section of the housing. The cover includes a limiter limiting the lock arm to move to disengaging the terminal.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: May 24, 2011
    Assignee: Yazaki Corporation
    Inventors: Masahiro Deno, Yasukazu Chikamatsu
  • Patent number: 7740504
    Abstract: A power circuit breaker having a simple structure with a small number of components is provided. The power circuit breaker includes: a circuit receiver which receives a pair of circuit terminals connected to an end of an opened power circuit; and a plug body having a fuse to be mounted on the circuit receiver to close the power circuit. In the fuse, a pair of terminals extending from a housing, which receives a fuse element of the fuse, is bent approximately at right angles at the middle of the terminal. A central curving portion of the bent part is provided with a notch. A cross section of the terminal exposed within the notch is pressed by a jig, which fits with the notch, so that the fuse is press-fit into the plug body.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: June 22, 2010
    Assignee: Yazaki Corporation
    Inventors: Yasukazu Chikamatsu, Masahiro Deno, Shigeyuki Ogasawara, Yasuyoshi Fukao
  • Publication number: 20090047812
    Abstract: An attaching structure of a connector for attaching a connector to an attached portion, includes: a holding unit which holds the connector at an attaching position by sliding the connector in a direction of intersecting with a superimposing direction of the connector and the attached portion to superimpose the connector on the attached portion; and a pair of holes provided at the connector and the attached portion for passing a screw member by being communicated with each other when the connector is disposed at the attaching position.
    Type: Application
    Filed: August 14, 2008
    Publication date: February 19, 2009
    Applicants: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiro DENO, Yasukazu CHIKAMATSU, Bunji NOMURA, Tsuyoshi HAYASHI, Hajime OYANAGI
  • Publication number: 20090033453
    Abstract: For providing a power-circuit breaking device, which can easily mount a fuse and has a small number of component and a simple structure, the power-circuit breaking device includes a first connector housing having a pair of circuit terminals connected with a power circuit, and a second connector housing closing the power circuit by fitting with the first connector housing. The second connector housing includes a fuse having a pair of terminals to be connected with the pair of circuit terminals, a housing having a lock arm engaged with a cutout provided at the terminal and a cover an entry opening of a receiving section of the housing. The cover includes a limiter limiting the lock arm to move to disengaging the terminal.
    Type: Application
    Filed: June 23, 2008
    Publication date: February 5, 2009
    Applicant: Yazaki Corporation
    Inventors: Masahiro Deno, Yasukazu Chikamatsu
  • Publication number: 20080242150
    Abstract: A power circuit breaker having a simple structure with a small number of components is provided. The power circuit breaker includes: a circuit receiver which receives a pair of circuit terminals connected to an end of an opened power circuit; and a plug body having a fuse to be mounted on the circuit receiver to close the power circuit. In the fuse, a pair of terminals extending from a housing, which receives a fuse element of the fuse, is bent approximately at right angles at the middle of the terminal. The bent part is provided with a notch. A cross section of the terminal exposed within the notch is pressed by a jig, which fits with the notch, so that the fuse is press-fit into the plug body.
    Type: Application
    Filed: May 23, 2008
    Publication date: October 2, 2008
    Applicant: Yazaki Corporation
    Inventors: Yasukazu Chikamatsu, Masahiro Deno, Shigeyuki Ogasawara, Yasuyoshi Fukao