Patents by Inventor Tetsuya Sekino

Tetsuya Sekino 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: 20240106169
    Abstract: An erroneous fitting prevention connector includes: a connector housing having a guide projection; and a mating connector housing having a rectangular tubular hood portion and a guide groove provided to be recessed on an inner wall surface of one side wall of the hood portion and extending along a fitting direction. At a front end portion of the other side wall parallel to the one side wall of the hood portion, an interference portion against which a housing front side end surface of the guide projection abuts when the connector housing is in a wrong insertion position, is formed. The interference portion has a contacted recess portion and an inclined contacted surface. The housing front side end surface has a contact surface that comes into contact with a bottom surface of the contacted recess portion, and an inclined contact surface that comes into contact with the inclined contacted surface.
    Type: Application
    Filed: September 14, 2023
    Publication date: March 28, 2024
    Inventors: Tetsuya Sekino, Yoshinobu Iwasaki
  • Publication number: 20220352668
    Abstract: A connector includes a housing with a terminal accommodating chamber for inserting a terminal therein; and a mounting member configured to be mounted to the housing, wherein the mounting member includes: a front mask configured to cover a side of the housing on a terminal inserting direction side on which the terminal is inserted into the housing; a spacer configured to be inserted into the housing; and a hinge coupling the front mask to the spacer, wherein the spacer is configured to be locked in the housing in a temporary locked position and a final locked position of the housing, the final locked position being located deeper in the housing in an inserting direction than the temporary locked position, and wherein in a state where the spacer is positioned in the final locked position, the hinge is configured not to protrude from the housing.
    Type: Application
    Filed: March 22, 2022
    Publication date: November 3, 2022
    Applicant: Yazaki Corporation
    Inventor: Tetsuya SEKINO
  • Patent number: 11489276
    Abstract: A connection terminal includes a tubular electrical connection portion into which a mating connection portion of a mating terminal is inserted. The electrical connection portion is provided with an elastic piece with a first contact portion and an opposing wall disposed opposite to the elastic piece. The opposing wall includes: second contact portions disposed on a front side and a rear side in an insertion direction of the mating connection portion, and projecting toward an elastic piece side; and a curved surface located between the second contact portions and curved so as to be separated from the mating connection portion. The curved surface includes a first curved surface located on the rear side in the insertion direction and a second curved surface located on the front side in the insertion direction. A curvature of the second curved surface is set larger than a curvature of the first curved surface.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: November 1, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Takeshi Osada, Tetsuya Sekino, Yoshifumi Shinmi
  • Publication number: 20220344859
    Abstract: A connector comprises a housing including a terminal accommodating chamber; and a front mask to cover a front side of the housing in a terminal inserting direction, wherein the housing includes a housing main body and an engagement frame section, wherein the engagement frame section protrudes forward from the housing main body, wherein the front mask includes a mask main body and an inserted section, the mask main body being provided with an accommodating recess in a position of the mask main body facing the terminal accommodating chamber, wherein the inserted section is inserted inside the engagement frame section, and wherein in a state in which the inserted section is inserted inside the engagement frame section and the accommodating recess is located in a position facing the terminal accommodating chamber, a portion of the inserted section protrudes from the engagement frame section and is exposed.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 27, 2022
    Applicant: Yazaki Corporation
    Inventor: Tetsuya SEKINO
  • Patent number: 11424570
    Abstract: A connector includes: an outer housing that includes an inserting part having a tubular shape, and is fixed to a first surface of a wall part in a state in which the inserting part is inserted into a hole part of the wall part; and an inner housing including a main body that is inserted into the hole part from a second surface side to be engaged with the outer housing, and a projecting part projecting from the main body. The projecting part projects from the main body toward a rear side in an insertion direction with respect to the hole part, and is configured such that a rear end surface of the projecting part is located to be flush with the second surface when the main body is completely engaged with the outer housing.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: August 23, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Tetsuya Sekino, Toshinori Yamamoto
  • Patent number: 11355885
    Abstract: A connector can include a bolt, a housing, a sealing member, and a holder. The housing can include a fixing part having a through hole into which the bolt is inserted, and an inserting part. The fixing part can be fixed to a wall part by the bolt and the inserting part can have a tubular shape that projects from the fixing part to be inserted into a hole part of the wall part. The sealing member can be mounted on an outer surface of the inserting part to seal between the inserting part and the hole part. The holder can include an abutting part that is positioned between an outer surface of the inserting part and the hole part, and the holder can be fixed to a distal end part of the inserting part.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: June 7, 2022
    Assignee: YAZAKI CORPORATION
    Inventor: Tetsuya Sekino
  • Patent number: 11349256
    Abstract: A connector includes an outer housing, an inner housing fitted to the outer housing, and a detection member assembled to the outer housing and restricted from being separated in a removal direction. The detection member has a flexible lock arm and a member-side protrusion formed on a free end side of the lock arm and facing an outer-side protrusion in the removal direction in an assembled state. When a locking arm gets over the outer-side protrusion and is locked to the outer-side protrusion, the locking arm moves in an insertion direction while being elastically deformed, and elastically returns after getting over the outer-side protrusion to press the member-side protrusion outward an inner housing accommodating space, so that the lock arm allows the outer-side protrusion and the member-side protrusion to be in a non-facing state in the insertion/removal direction, and allows the detection member to be separated in the removal direction.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 31, 2022
    Assignee: YAZAKI CORPORATION
    Inventor: Tetsuya Sekino
  • Publication number: 20220131298
    Abstract: A connection terminal includes a tubular electrical connection portion into which a mating connection portion of a mating terminal is inserted. The electrical connection portion is provided with an elastic piece with a first contact portion and an opposing wall disposed opposite to the elastic piece. The opposing wall includes: second contact portions disposed on a front side and a rear side in an insertion direction of the mating connection portion, and projecting toward an elastic piece side; and a curved surface located between the second contact portions and curved so as to be separated from the mating connection portion. The curved surface includes a first curved surface located on the rear side in the insertion direction and a second curved surface located on the front side in the insertion direction. A curvature of the second curved surface is set larger than a curvature of the first curved surface.
    Type: Application
    Filed: October 22, 2021
    Publication date: April 28, 2022
    Applicant: Yazaki Corporation
    Inventors: Takeshi OSADA, Tetsuya SEKINO, Yoshifumi SHINMI
  • Patent number: 11233358
    Abstract: A lever-type connector includes a connector body including side walls and a boss portion and a lever including a pair of arm portions, each of the pair of arm portions being provided with a boss fitting hole into which the boss portion of the connector body is to be inserted, the lever being to be rotatably attached to the connector body. The connector body and the lever includes a first and second alignment marks, the first alignment mark and the second alignment mark being visually recognizable while the lever is being attached to the connector body. The lever is, by aligning the second alignment mark with the first alignment mark, to be rotatably attached to the connector body with a position of the boss portion and a position of the fitting hole being aligned with each other, allowing the boss portion to be inserted into the boss fitting hole.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 25, 2022
    Assignee: YAZAKI CORPORATION
    Inventors: Tetsuya Sekino, Hiromasa Kubota
  • Publication number: 20210320456
    Abstract: A connector includes an outer housing, an inner housing fitted to the outer housing, and a detection member assembled to the outer housing and restricted from being separated in a removal direction. The detection member has a flexible lock arm and a member-side protrusion formed on a free end side of the lock arm and facing an outer-side protrusion in the removal direction in an assembled state. When a locking arm gets over the outer-side protrusion and is locked to the outer-side protrusion, the locking arm moves in an insertion direction while being elastically deformed, and elastically returns after getting over the outer-side protrusion to press the member-side protrusion outward an inner housing accommodating space, so that the lock arm allows the outer-side protrusion and the member-side protrusion to be in a non-facing state in the insertion/removal direction, and allows the detection member to be separated in the removal direction.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 14, 2021
    Inventor: Tetsuya Sekino
  • Patent number: 11133621
    Abstract: An electric wire cover includes a first cover and a second cover, the electric wire cover being to be attached to a connector and to cover and protect an electric wire drawn out from the connector. The first cover includes a side plate and a locking claw. The second cover includes a lock piece and a protective wall, the lock piece protruding in a direction in which the second cover is attached to the first cover, the lock piece being to lock the locking claw, the protective wall surrounding the lock piece. The protective wa1l includes an outer wall portion and side wall portions, the outer wall portion being provided with a first gap between the outer wall portion and an outer surface of the lock piece, the side wall portions being provided with second gaps between the side wall portions and side portions of the lock piece.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: September 28, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Tetsuya Sekino, Daigo Yokoyama
  • Publication number: 20210249815
    Abstract: A lever type connector includes: a connector body including boss portions; and a lever having including a coupling portion coupling arm portions having boss fitting holes. An electric wire cover is attached to the connector body, and includes an electric wire lead-out portion. The coupling portion includes a recessed sliding portion recessed in an arc shape. In attaching the lever to the connector body, the lever is positioned relative to the connector body by bringing the recessed sliding portion in contact with a part of an outer peripheral portion of the electric wire lead-out portion of the electric wire cover so as to allow positions of the boss fitting holes to be aligned with positions of the boss portions, and the lever is rotatably attached to the connector body in a state where the boss portions are inserted into the boss fitting holes.
    Type: Application
    Filed: January 21, 2021
    Publication date: August 12, 2021
    Inventors: Tetsuya Sekino, Hiromasa Kubota
  • Publication number: 20210218179
    Abstract: A connector includes: an outer housing that includes an inserting part having a tubular shape, and is fixed to a first surface of a wall part in a state in which the inserting part is inserted into a hole part of the wall part; and an inner housing including a main body that is inserted into the hole part from a second surface side to be engaged with the outer housing, and a projecting part projecting from the main body. The projecting part projects from the main body toward a rear side in an insertion direction with respect to the hole part, and is configured such that a rear end surface of the projecting part is located to be flush with the second surface when the main body is completely engaged with the outer housing.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 15, 2021
    Inventors: Tetsuya Sekino, Toshinori Yamamoto
  • Publication number: 20210218180
    Abstract: A connector includes: a bolt; a housing including a fixing part having a through hole into which the bolt is inserted, the fixing part being fixed to a wall part by the bolt, and an inserting part having a tubular shape that projects from the fixing part to be inserted into a hole part of the wall part; a sealing member that is mounted on an outer surface of the inserting part to seal between the inserting part and the hole part; and a holder including an abutting part that is positioned between an outer surface of the inserting part and the hole part, the holder being fixed to a distal end part of the inserting part.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 15, 2021
    Inventor: Tetsuya Sekino
  • Publication number: 20210091508
    Abstract: An electric wire cover includes a first cover and a second cover, the electric wire cover being to be attached to a connector and to cover and protect an electric wire drawn out from the connector. The first cover includes a side plate and a locking claw. The second cover includes a lock piece and a protective wall, the lock piece protruding in a direction in which the second cover is attached to the first cover, the lock piece being to lock the locking claw, the protective wall surrounding the lock piece. The protective wa1l includes an outer wall portion and side wall portions, the outer wall portion being provided with a first gap between the outer wall portion and an outer surface of the lock piece, the side wall portions being provided with second gaps between the side wall portions and side portions of the lock piece.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 25, 2021
    Applicant: Yazaki Corporation
    Inventors: Tetsuya SEKINO, Daigo YOKOYAMA
  • Publication number: 20210013673
    Abstract: A lever-type connector includes a connector body including side walls and a boss portion and a lever including a pair of arm portions, each of the pair of arm portions being provided with a boss fitting hole into which the boss portion of the connector body is to be inserted, the lever being to be rotatably attached to the connector body. The connector body and the lever includes a first and second alignment marks, the first alignment mark and the second alignment mark being visually recognizable while the lever is being attached to the connector body. The lever is, by aligning the second alignment mark with the first alignment mark, to be rotatably attached to the connector body with a position of the boss portion and a position of the fitting hole being aligned with each other, allowing the boss portion to be inserted into the boss fitting hole.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 14, 2021
    Inventors: Tetsuya Sekino, Hiromasa Kubota
  • Patent number: 10224671
    Abstract: A connector includes a first housing housing a plurality of first terminals, a second housing being fittable to the first housing and housing a plurality of second terminals connectable to the respective first terminals, a short-circuiting terminal housed in the first housing and having contact pieces contacting the respective first terminals which are adjacent to each other, and a release portion provided on the second housing and displacing the contact pieces to release contact between the first terminals and the contact pieces. The second housing is deflectably provided with a lock arm on an outer peripheral surface of the second housing, the lock arm holding a state in which the first housing and the second housing are fit together. The release portion is arranged on the outer peripheral surface of the second housing forward of the lock arm in a fitting direction of the first housing and the second housing.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 5, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Tetsuya Sekino, Nobuyuki Sakamoto, Toshinori Yamamoto
  • Patent number: 10062998
    Abstract: A connector includes: a short circuit terminal housed in a first housing and having contact pieces contacting with adjacent first terminals of a plurality of first terminals respectively with the first housing and a second housing not being engaged with each other; and a releaser provided in the second housing and configured to displace the contact pieces and release contact between the adjacent first terminals and the contact pieces upon engaging of the first housing and the second housing. The contact pieces include: contact portions contactable with the adjacent first terminals respectively; and slide portions slidable on the releaser and respectively arranged in positions anterior to the contact portions in an engaging direction of the first housing and the second housing. The contact portions are apart from the releaser with the contact pieces being displaced due to slide of the slide portions on the releaser.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 28, 2018
    Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Sekino, Hiroshi Kobayashi, Takeshi Misaiji
  • Patent number: 10033126
    Abstract: A connector includes a first housing accommodating first terminals, a second housing accommodating second terminals connectable to the first terminals and fittable to the first housing, short-circuit terminals accommodated in the first housing and each having a pair of contact pieces that respectively come in contact with corresponding first terminals adjacent to each other, releasing parts provided in the second housing and configured so as to displace the contact pieces, thereby releasing contacts between the first terminals and the contact pieces, tin plating films formed on respective contact surfaces of the first terminals and the contact pieces coming into contact with each other, and sliding parts provided in the second housing and positioned ahead of the releasing parts in a fitting direction between the first housing and the second housing to displace the contact pieces thereby allowing the contact pieces to slide on the first terminals.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: July 24, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Tetsuya Sekino, Nobuyuki Sakamoto, Toshinori Yamamoto
  • Patent number: 9979123
    Abstract: An engagement member mounted to a first housing with a fitting detection member located at a complete engagement position is located at a correct position with a terminal correctly housed in the first housing and is located at an incorrect position with the terminal incorrectly housed in the first housing. The engagement member located at the correct position does not interfere with the fitting detection member and allows a movement of the fitting detection member from the complete engagement position to a temporary engagement position. The engagement member located at the incorrect position interferes with the fitting detection member and prevents the movement of the fitting detection member from the complete engagement position to the temporary engagement position.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 22, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Tetsuya Sekino, Nobuyuki Sakamoto, Toshinori Yamamoto