Patents by Inventor Hiromasa Kubota

Hiromasa Kubota 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: 11557856
    Abstract: A connector lock structure includes a lock arm that extends along a fitting direction and is formed on a side wall of a connector housing, and maintains a fitted state by being elastically engaged with a counterpart connector housing; a pair of flexible and deformable plate-shaped support walls that protrude rearward of the side wall to sandwich a rear portion of the lock arm therebetween; a coupling portion that couples each of the plate-shaped support walls to the rear portion of the lock arm in a width direction of the connector housing; and an upward protruding portion that protrudes upward than the coupling portion and is formed on each of the plate-shaped support walls.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: January 17, 2023
    Assignee: Yazaki Corporation
    Inventors: Kousuke Kida, Akihiro Tsuruta, Takuya Hasegawa, Hiromasa Kubota
  • Patent number: 11545783
    Abstract: A connector lock structure includes: a lock arm extending from a front end to a rear end in a fitting direction and formed on a side wall of a connector housing; a pair of plate-shaped support walls provided at a rear portion of the side wall to protrude from the side wall and sandwiching a rear portion of the lock arm therebetween; a connecting portion that connects upper ends of the pair of plate-shaped support walls in a width direction to cross over the rear portion of the lock arm; and a lock operation space having a cut formed at a rear end of the connecting portion. A rear end of one of the pair of plate-shaped support walls is located closer to the front end of the lock arm than the rear end of the lock arm in the fitting direction.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: January 3, 2023
    Assignee: YAZAKI CORPORATION
    Inventors: Kousuke Kida, Hiromasa Kubota
  • 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: 20210376522
    Abstract: A connector lock structure includes: a lock arm extending from a front end to a rear end in a fitting direction and formed on a side wall of a connector housing; a pair of plate-shaped support walls provided at a rear portion of the side wall to protrude from the side wall and sandwiching a rear portion of the lock arm therebetween; a connecting portion that connects upper ends of the pair of plate-shaped support walls in a width direction to cross over the rear portion of the lock arm; and a lock operation space having a cut formed at a rear end of the connecting portion. A rear end of one of the pair of plate-shaped support walls is located closer to the front end of the lock arm than the rear end of the lock arm in the fitting direction.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 2, 2021
    Applicant: Yazaki Corporation
    Inventors: Kousuke KIDA, Hiromasa KUBOTA
  • Publication number: 20210281013
    Abstract: A connector lock structure includes a lock arm that extends along a fitting direction and is formed on a side wall of a connector housing, and maintains a fitted state by being elastically engaged with a counterpart connector housing; a pair of flexible and deformable plate-shaped support walls that protrude rearward of the side wall to sandwich a rear portion of the lock arm therebetween; a coupling portion that couples each of the plate-shaped support walls to the rear portion of the lock arm in a width direction of the connector housing; and an upward protruding portion that protrudes upward than the coupling portion and is formed on each of the plate-shaped support walls.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 9, 2021
    Applicant: Yazaki Corporation
    Inventors: Kousuke Kida, Akihiro Tsuruta, Takuya Hasegawa, Hiromasa Kubota
  • 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: 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: 10424870
    Abstract: A connector includes a housing and a lock arm that extends from the housing and is engageable with a counterpart connector. The lock arm includes a first arm a has a shape of a cantilever beam and has a locking hole for being engaged with the counterpart connector at a free end side of the first arm, and a second arm that extends from an end portion on the free end side of the first arm and is capable of releasing the engagement by bending the first arm around a fixing end of the first arm. The locking hole has a hole of which the size in a width direction orthogonal to an extending direction of the first arm becomes larger as a measurement position of the size of the hole gets closer to the free end from the fixing end.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: September 24, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Hidenori Kanda, Hiromasa Kubota
  • Publication number: 20180076566
    Abstract: A connector includes a housing and a lock arm that extends from the housing and is engageable with a counterpart connector. The lock arm includes a first arm a has a shape of a cantilever beam and has a locking hole for being engaged with the counterpart connector at a free end side of the first arm, and a second arm that extends from an end portion on the free end side of the first arm and is capable of releasing the engagement by bending the first arm around a fixing end of the first arm. The locking hole has a hole of which the size in a width direction orthogonal to an extending direction of the first arm becomes larger as a measurement position of the size of the hole gets closer to the free end from the fixing end.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 15, 2018
    Inventors: Hidenori Kanda, Hiromasa Kubota
  • Patent number: 9871322
    Abstract: A connector includes a lever drawing and fitting a first housing and a second housing by moving from a temporary lock position to a final lock position. The lever includes a lever-side lock portion elastically deformable in a first direction away from a surface of the first housing, and including a reinforcing rib that enhances rigidity against a deformation of the lever-side lock protrusion. The first housing includes a housing-side lock portion which locks the lever-side lock portion when the lever is in the temporary lock position, which inhibits movement of the lever to the final lock position during locking, and which permits the lever to move to the final lock position when the locking is released. The second housing includes a lock releasing portion which pushes the lever-side lock portion in the first direction so as to release the locking.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: January 16, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Hidenori Kanda, Hiromasa Kubota
  • Publication number: 20170346225
    Abstract: A connector includes a lever drawing and fitting a first housing and a second housing by moving from a temporary lock position to a final lock position. The lever includes a lever-side lock portion elastically deformable in a first direction away from a surface of the first housing, and including a reinforcing rib that enhances rigidity against a deformation of the lever-side lock protrusion. The first housing includes a housing-side lock portion which locks the lever-side lock portion when the lever is in the temporary lock position, which inhibits movement of the lever to the final lock position during locking, and which permits the lever to move to the final lock position when the locking is released. The second housing includes a lock releasing portion which pushes the lever-side lock portion in the first direction so as to release the locking.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 30, 2017
    Applicant: Yazaki Corporation
    Inventors: Hidenori KANDA, Hiromasa KUBOTA
  • Publication number: 20170346226
    Abstract: A connector includes a lever attachable to a first housing to draw and fit the first housing and a second housing by rotating around a rotating axis from a temporary lock position to a final lock position. The lever includes: a positioning portion including a pair of wall surfaces which extend toward the first housing and which are spaced at a predetermined distance from each other in a first direction parallel to the rotating axis; and a lever side lock portion. The first housing includes: a reception portion which receives the positioning portion so as to hold the pair of wall surfaces in the first direction; and a housing-side lock portion to which the lever-side lock portion is locked in a state in which the positioning portion has been received in the reception portion and when the lever is in the final lock position.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 30, 2017
    Applicant: Yazaki Corporation
    Inventors: Hidenori KANDA, Hiromasa KUBOTA
  • Patent number: 9831602
    Abstract: A connector includes a lever attachable to a first housing to draw and fit the first housing and a second housing by rotating around a rotating axis from a temporary lock position to a final lock position. The lever includes: a positioning portion including a pair of wall surfaces which extend toward the first housing and which are spaced at a predetermined distance from each other in a first direction parallel to the rotating axis; and a lever side lock portion. The first housing includes: a reception portion which receives the positioning portion so as to hold the pair of wall surfaces in the first direction; and a housing-side lock portion to which the lever-side lock portion is locked in a state in which the positioning portion has been received in the reception portion and when the lever is in the final lock position.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: November 28, 2017
    Assignee: YAZAKI CORPORATION
    Inventors: Hidenori Kanda, Hiromasa Kubota
  • Patent number: 9203190
    Abstract: A lock structure of a connector includes a flexible lock arm, a lock engaging part and a releasing lever part. The flexible lock arm fixed to the second connector housing at a base end portion thereof is extended in a fitting direction of the connector. The lock engaging part provided at a distal end portion of the flexible lock arm is configured to be locked with a locking part provided in the first connector housing. The releasing lever part connected to the lock engaging part is extended along the flexible lock arm, and is configured to be rotated together with the lock engaging part around a pivot which is movable while releasing the lock. A thickness of the flexible rock arm is gradually decreased from the base end portion to the lock engaging part.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: December 1, 2015
    Assignee: Yazaki Corporation
    Inventors: Tsuyoshi Hamai, Hiromasa Kubota
  • Patent number: 9147968
    Abstract: In a connector of the invention, a female housing 30 which is adapted to accommodate a female connector terminal includes a female terminal locking lance (32) which prevents the dislocation of a female connector terminal accommodated in a female terminal accommodation hole (31), a tab insertion opening (33) through which a tab is inserted into a terminal fitting portion of the female connector terminal held in the female terminal accommodation hole (31), and a tapered guide surface (34) which is formed on an opening edge of the tab insertion opening (33), and further, the female terminal locking lance (32) is formed so as to deviate in a widthwise direction of the female connector terminal with respect to a center axis (C31) of the female terminal accommodation hole (31).
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 29, 2015
    Assignee: YAZAKI CORPORATION
    Inventors: Naokazu Nagasaka, Hiromasa Kubota
  • Publication number: 20140179146
    Abstract: A lock structure of a connector includes a flexible lock arm, a lock engaging part and a releasing lever part. The flexible lock arm fixed to the second connector housing at a base end portion thereof is extended in a fitting direction of the connector. The lock engaging part provided at a distal end portion of the flexible lock arm is configured to be locked with a locking part provided in the first connector housing. The releasing lever part connected to the lock engaging part is extended along the flexible lock arm, and is configured to be rotated together with the lock engaging part around a pivot which is movable while releasing the lock. A thickness of the flexible rock arm is gradually decreased from the base end portion to the lock engaging part.
    Type: Application
    Filed: September 6, 2012
    Publication date: June 26, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Tsuyoshi Hamai, Hiromasa Kubota
  • Publication number: 20140011387
    Abstract: In a connector of the invention, a female housing 30 which is adapted to accommodate a female connector terminal includes a female terminal locking lance (32) which prevents the dislocation of a female connector terminal accommodated in a female terminal accommodation hole (31), a tab insertion opening (33) through which a tab is inserted into a terminal fitting portion of the female connector terminal held in the female terminal accommodation hole (31), and a tapered guide surface (34) which is formed on an opening edge of the tab insertion opening (33), and further, the female terminal locking lance (32) is formed so as to deviate in a widthwise direction of the female connector terminal with respect to a center axis (C31) of the female terminal accommodation hole (31).
    Type: Application
    Filed: March 26, 2012
    Publication date: January 9, 2014
    Applicant: YAZAKI CORPORATION
    Inventors: Naokazu Nagasaka, Hiromasa Kubota
  • Patent number: 7980880
    Abstract: The present invention prevents two connector housings of a connector from being in a half-fitted condition by increasing restoring force which separates the two housing. A connector includes: a first connector housing including a lock projection; a second connector housing to be fitted to the first connector housing and integrally including a lock arm which is elastically deformed by the lock projection and is engaged with the lock projection; a lock ensuring member including a body which is attached to the second connector housing and movable between an allowing position and a preventing position, and an interference arm which is integrally provided on the body and includes a pressing projection. The pressing projection presses the lock arm while the lock projection deforms the lock arm at the allowing position, and the interference arm abuts the lock arm so as to prohibit the lock arm from deforming in the preventing position.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: July 19, 2011
    Assignee: Yazaki Corporation
    Inventors: Shinji Kodama, Hiromasa Kubota
  • Publication number: 20100111597
    Abstract: The present invention prevents two connector housings of a connector from being in a half-fitted condition by increasing restoring force which separates the two housing. A connector includes: a first connector housing including a lock projection; a second connector housing to be fitted to the first connector housing and integrally including a lock arm which is elastically deformed by the lock projection and is engaged with the lock projection; a lock ensuring member including a body which is attached to the second connector housing and movable between an allowing position and a preventing position, and an interference arm which is integrally provided on the body and includes a pressing projection. The pressing projection presses the lock arm while the lock projection deforms the lock arm at the allowing position, and the interference arm abuts the lock arm so as to prohibit the lock arm from deforming in the preventing position.
    Type: Application
    Filed: October 27, 2009
    Publication date: May 6, 2010
    Applicant: YAZAKI CORPORATION
    Inventors: Shinji KODAMA, Hiromasa KUBOTA
  • Patent number: 7559787
    Abstract: A flexible lock arm has a first arm which extends from a stay portion to an inflection point of the first arm on a front side of a terminal along a length direction indicated by arrow Y1 and a second arm which extends from the inflection point of the first arm to a rear end viewed from a stay portion. A first retaining projection is provided on the second arm.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: July 14, 2009
    Assignee: Yazaki Corporation
    Inventors: Yoshinori Shigeta, Akihiro Tsurata, Takeshi Kazama, Hiromasa Kubota