Patents by Inventor Kazuki Zaitsu

Kazuki Zaitsu 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: 9070995
    Abstract: A connector unit which prevents a user from contacting a first terminal fitting when fitting a first connector and a second connector together is provided. A connector unit 20 includes a first connector 1 having a first housing 4 receiving a first terminal fitting 3 and a contact-preventive housing 51 disposed between the first terminal fitting and the first housing, and a second housing to be fitted to the first housing. The contact-preventive housing includes a tension spring 6 having one end fixed at an outer circumference of the contact-preventive housing and the other end being a free-end arranged to engage to the first housing to restrict the contact-preventive housing from sliding. The second housing includes an entering portion 12 which enters between the tension spring and the first housing and pushes the tension spring to disengage the tension spring to permit the contact-preventive housing to slide.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: June 30, 2015
    Assignee: Yazaki Corporation
    Inventors: Sachiko Yagome, Ayumu Ishikawa, Kazuki Zaitsu
  • Patent number: 8997346
    Abstract: In order to avoid cost for accommodating a shield wire in a housing while bending, and smoothly and readily accommodate within the housing while the shield electric wire is insulated, a conductive housing 1 including a rear wall 4 continuing to an annular wall 3, and a tube wall 5 continuing to down the rear wall 4, a method comprising the steps of: passing through a shield electric wire 2 from a lower opening 5a of the tube wall of the conductive housing to a front opening 3a of the annular wall while bending the shield electric wire; putting a shield terminal 9 movably around the shield electric wire from top of the shield electric wire; exposing a core wire 2b and a braid 2a of the shield electric wire by stripping a tip thereof; connecting an L-shaped terminal 11 to the core wire; mounting an L-shaped insulation inner housing 12 outside the L-shaped terminal; connecting the shield terminal to the braid; and accommodating a vertical part 14 of the inner housing within the conductive housing by pulling in t
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: April 7, 2015
    Assignee: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Patent number: 8840428
    Abstract: To electromagnetically-shield an L-shaped terminal in a compact and reliable manner while easily and securely fixing the L-shaped terminal, there is employed an insulating split inner housing having an L-shaped terminal receiving portion including an electric-contact-portion-side receiving portion covering an electric contact portion of the L-shaped terminal connected to a shielded wire and a wire-connection-portion-side receiving portion covering a wire connection portion of the L-shaped terminal, the electric-contact-portion-side receiving portion is covered by a conductive shield shell, the wire-connection-portion-side receiving portion is covered by a conductive housing connected to the shield shell and to a shield portion of the shielded wire, and the L-shaped terminal is insulated by the inner housing from the shield shell and the conductive housing.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: September 23, 2014
    Assignee: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Patent number: 8808012
    Abstract: A shield connector includes a housing and a shield terminal. The housing, has a tubular shape so that a shield electric wire is inserted thereinto, and is attached to an objective body so as to communicate with an insert hole of the objective body. The shield terminal, has a tubular shape, is electrically conductive, is attached to an inner peripheral side of the housing, and is electrically conducted to the objective body and the shield layer. A seal member having a tubular shape is provided between an inner periphery of the insert hole and the shield electric wire and between the shield terminal and the shield electric wire, so as to seal a part between the inner periphery of the insert hole and an outer periphery of the shield electric wire and a part between an inner periphery of the shield terminal and the outer periphery of the shield electric wire.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 19, 2014
    Assignee: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Patent number: 8734183
    Abstract: A connecting structure of shield terminals configured to tighten and connect a pair of shield terminals with a single bolt simultaneously in a smaller space, the structure includes: two shield terminals each having a circular portion into which a braided wire of a shield electric wire is inserted and connected, a plate portion extended from the ring-shaped portion along the shield electric wire, and a projecting piece extended perpendicular to the plate portion from a tip of the plate portion and having a bolt-insertion hole at the center thereof, wherein one wall of the projecting piece is positioned on an extension of a center line (m) of the ring-shaped portion, wherein one shield terminal is inverted 180 degree, and wherein the one wall of the projecting piece of the one shield terminal is overlapped with and abuts on the one wall of the projecting piece of the other shield terminal.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: May 27, 2014
    Assignee: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Patent number: 8696373
    Abstract: An object is to surely connect and disconnect the safety circuit for connectors with good workability. A low insertion force connector unit with a safety circuit unit 1 is adopted. The low insertion force connector unit with a safety circuit unit 1 includes: a driving lever 5 having an arc-shaped gear 6, an arc-shaped notch 34 continued to the gear, an arc-shaped cam groove 16 formed in the same radius from a center axis ‘m’, and a straight groove 17 continued to the cam groove; a gear unit 8 having a circular gear 10 meshed with the arc-shaped gear and a spiral groove 9, and attached to the one connector 2; a first driven projection 11 provided on the other connector 3, and engaged with the spiral groove; one small connector 13 of the safety circuit unit 12 provided on the one connector movably in a connector fitting direction; a second driven projection 22 provided on the one small connector; and the other small connector 14 of the safety circuit unit 12 fixed to the other connector.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: April 15, 2014
    Assignee: Yazaki Corporation
    Inventors: Sachiko Yagome, Ayumu Ishikawa, Kazuki Zaitsu
  • Publication number: 20130237074
    Abstract: A connector unit which prevents a user from contacting a first terminal fitting when fitting a first connector and a second connector together is provided. A connector unit 20 includes a first connector 1 having a first housing 4 receiving a first terminal fitting 3 and a contact-preventive housing 51 disposed between the first terminal fitting and the first housing, and a second housing to be fitted to the first housing. The contact-preventive housing includes a tension spring 6 having one end fixed at an outer circumference of the contact-preventive housing and the other end being a free-end arranged to engage to the first housing to restrict the contact-preventive housing from sliding. The second housing includes an entering portion 12 which enters between the tension spring and the first housing and pushes the tension spring to disengage the tension spring to permit the contact-preventive housing to slide.
    Type: Application
    Filed: November 14, 2011
    Publication date: September 12, 2013
    Applicant: YAZAKI CORPORATION
    Inventors: Sachiko Yagome, Ayumu Ishikawa, Kazuki Zaitsu
  • Patent number: 8485844
    Abstract: An L-shaped connector, which can waterproof simply and connect an L-shape terminal to an electric shield wire in miniaturized size so as to insulate and electromagnetic shield the L-shaped terminal, includes an L-shaped dividable insulation inner housing receiving an L-shaped terminal joined to the electric shield wire; an electric conductive shield shell covering a terminal receiving portion of the inner housing; an outer housing covering the shield shell; an electric conductive housing receiving a wire lead-out portion of the inner housing, and joining a flange of the shield shell and a flange of the outer housing to a flange of the electric conductive housing by screwing, and connecting a shield portion of the electric shield wire through a shield terminal to the shield shell; and a shield packing waterproofing between the flange of the shield shell and the flange of the electric conductive shell.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 16, 2013
    Assignee: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Patent number: 8449323
    Abstract: An object of the present invention is to provide a watertight shield connector able to waterproof successfully without an effect of a parting line, and surely preventing an annular packing or a shield shell from falling out with a plain structure.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: May 28, 2013
    Assignee: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Publication number: 20130095683
    Abstract: An object is to surely connect and disconnect the safety circuit for connectors with good workability. A low insertion force connector unit with a safety circuit unit 1 is adopted. The low insertion force connector unit with a safety circuit unit 1 includes: a driving lever 5 having an arc-shaped gear 6, an arc-shaped notch 34 continued to the gear, an arc-shaped cam groove 16 formed in the same radius from a center axis ‘m’, and a straight groove 17 continued to the cam groove; a gear unit 8 having a circular gear 10 meshed with the arc-shaped gear and a spiral groove 9, and attached to the one connector 2; a first driven projection 11 provided on the other connector 3, and engaged with the spiral groove; one small connector 13 of the safety circuit unit 12 provided on the one connector movably in a connector fitting direction; a second driven projection 22 provided on the one small connector; and the other small connector 14 of the safety circuit unit 12 fixed to the other connector.
    Type: Application
    Filed: July 5, 2011
    Publication date: April 18, 2013
    Applicant: Yazaki Corporation
    Inventors: Sachiko Yagome, Ayumu Ishikawa, Kazuki Zaitsu
  • Publication number: 20130084728
    Abstract: A shield connector includes a housing and a shield terminal. The housing, has a tubular shape so that a shield electric wire is inserted thereinto, and is attached to an objective body so as to communicate with an insert hole of the objective body. The shield terminal, has a tubular shape, is electrically conductive, is attached to an inner peripheral side of the housing, and is electrically conducted to the objective body and the shield layer. A seal member having a tubular shape is provided between an inner periphery of the insert hole and the shield electric wire and between the shield terminal and the shield electric wire, so as to seal a part between the inner periphery of the insert hole and an outer periphery of the shield electric wire and a part between an inner periphery of the shield terminal and the outer periphery of the shield electric wire.
    Type: Application
    Filed: September 2, 2011
    Publication date: April 4, 2013
    Applicant: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Publication number: 20130029524
    Abstract: There is provided a connecting structure of shield terminals configured to tighten and connect a pair of shield terminals with a single bolt simultaneously in a smaller space with an object of reducing the number of components and the component cost by sharing the same type shield terminals.
    Type: Application
    Filed: April 8, 2011
    Publication date: January 31, 2013
    Applicant: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Publication number: 20130019471
    Abstract: In order to avoid cost for accommodating a shield wire in a housing while bending, and smoothly and readily accommodate within the housing while the shield electric wire is insulated, a conductive housing 1 including a rear wall 4 continuing to an annular wall 3, and a tube wall 5 continuing to down the rear wall 4, a method comprising the steps of: passing through a shield electric wire 2 from a lower opening 5a of the tube wall of the conductive housing to a front opening 3a of the annular wall while bending the shield electric wire; putting a shield terminal 9 movably around the shield electric wire from top of the shield electric wire; exposing a core wire 2b and a braid 2a of the shield electric wire by stripping a tip thereof; connecting an L-shaped terminal 11 to the core wire; mounting an L-shaped insulation inner housing 12 outside the L-shaped terminal; connecting the shield terminal to the braid; and accommodating a vertical part 14 of the inner housing within the conductive housing by pulling in t
    Type: Application
    Filed: April 8, 2011
    Publication date: January 24, 2013
    Applicant: Yazaki Cororation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Publication number: 20120295479
    Abstract: An object of the present invention is to provide a watertight shield connector able to waterproof successfully without an effect of a parting line, and surely preventing an annular packing or a shield shell from falling out with a plain structure.
    Type: Application
    Filed: December 14, 2010
    Publication date: November 22, 2012
    Applicant: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Publication number: 20120252272
    Abstract: To electromagnetically-shield an L-shaped terminal in a compact and reliable manner while easily and securely fixing the L-shaped terminal, there is employed an insulating split inner housing having an L-shaped terminal receiving portion including an electric-contact-portion-side receiving portion covering an electric contact portion of the L-shaped terminal connected to a shielded wire and a wire-connection-portion-side receiving portion covering a wire connection portion of the L-shaped terminal, the electric-contact-portion-side receiving portion is covered by a conductive shield shell, the wire-connection-portion-side receiving portion is covered by a conductive housing connected to the shield shell and to a shield portion of the shielded wire, and the L-shaped terminal is insulated by the inner housing from the shield shell and the conductive housing.
    Type: Application
    Filed: November 29, 2010
    Publication date: October 4, 2012
    Applicant: Yazaki Corporation
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Publication number: 20120100753
    Abstract: An L-shaped connector, which can waterproof simply and connect an L-shape terminal to an electric shield wire in miniaturized size so as to insulate and electromagnetic shield the L-shaped terminal, includes an L-shaped dividable insulation inner housing receiving an L-shaped terminal joined to the electric shield wire; an electric conductive shield shell covering a terminal receiving portion of the inner housing; an outer housing covering the shield shell; an electric conductive housing receiving a wire lead-out portion of the inner housing, and joining a flange of the shield shell and a flange of the outer housing to a flange of the electric conductive housing by screwing, and connecting a shield portion of the electric shield wire through a shield terminal to the shield shell; and a shield packing waterproofing between the flange of the shield shell and the flange of the electric conductive shell.
    Type: Application
    Filed: September 15, 2010
    Publication date: April 26, 2012
    Applicant: YAZAKI CORPORATION
    Inventors: Takashi Omae, Kazuki Zaitsu
  • Patent number: 7955127
    Abstract: A connector which can be made small is provided. The connector 1 includes: a connector housing 2 receiving terminal fittings 13 arranged in rows, the terminal fitting 13 attaching an electric wire 17 thereto; and a holding part 3 including a plurality of molded members 20 molded integrally with an outer periphery of the electric wires 17; and a packing 4 attached to an outer periphery of the holding part 3 and sealing up a space between the holding part 3 and the connector housing 2.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: June 7, 2011
    Assignee: Yazaki Corporation
    Inventors: Nobuyuki Sakamoto, Keiko Ishida, Kazuki Zaitsu, Yusaku Oki
  • Publication number: 20100136814
    Abstract: [Problems] To provide a packing which makes it easy to connect the connector housing to which the packing is attached to the mating connector housing, and keeps a connecting area between the connector housing watertight, and to provide a connector having the packing. [Means for Solving Problems] A connector 1 includes a male housing 17 and a packing 19. The male housing 17 is connected to a female connector housing. The packing 19 includes: a hard part 30 made of first elastic material, a center part thereof in a connecting direction K of the connector housings being in close contact with the connector housing 17 to form a V-shaped section; and a soft part 31 made of second elastic material softer than the first material, overlapped with the hard part 30 at the mating connector housing side, being in close contact with the mating connector housing.
    Type: Application
    Filed: May 16, 2008
    Publication date: June 3, 2010
    Applicant: Yazaki Corporation
    Inventors: Nobuyuki Sakamoto, Keiko Ishida, Kazuki Zaitsu
  • Publication number: 20100136842
    Abstract: A connector which can be made small is provided. The connector 1 includes: a connector housing 2 receiving terminal fittings 13 arranged in rows, the terminal fitting 13 attaching an electric wire 17 thereto; and a holding part 3 including a plurality of molded members 20 molded integrally with an outer periphery of the electric wires 17; and a packing 4 attached to an outer periphery of the holding part 3 and sealing up a space between the holding part 3 and the connector housing 2.
    Type: Application
    Filed: May 26, 2008
    Publication date: June 3, 2010
    Applicant: Yazaki Corporation
    Inventors: Nobuyuki Sakamoto, Keiko Ishida, Kazuki Zaitsu, Yusaku Oki
  • Patent number: 7722396
    Abstract: A connector including seal bodies having an excellent sealing characteristic. The seal body puts an electric wire between the seal body and the other seal body so as to maintain a watertight characteristic between the electric wire and the seal bodies. The seal body includes: an abutting surface of the seal body, which abuts against a mating abutting surface of the other seal body when the seal bodies overlap each other; a groove which positions the electric wire inside the seal bodies; a lip part which projects from an inner surface of the groove and from the abutting surface.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: May 25, 2010
    Assignee: Yazaki Corporation
    Inventors: Shogo Suzuki, Kazuki Zaitsu