Patents by Inventor Makoto Yamanashi

Makoto Yamanashi 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: 5660564
    Abstract: A mounting arrangement is used for mounting a connector in a mounting hole formed in a panel. The mounting arrangment comprises an adapter which is mounted on the outer periphery of a housing of the connector so that the connector can be mounted in a large-diameter mounting hole of a greater diameter than that of the mounting hole sized to the housing when the size of the mounting hole is changed to the greater diameter.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: August 26, 1997
    Assignee: Yazaki Corporation
    Inventors: Makoto Yamanashi, Masahiro Sawayanagi
  • Patent number: 5653602
    Abstract: A stopping plug includes a body portion to be inserted into a terminal receiving chamber, and a pair of flexible arms formed integrally with the body portion and disposed on inner walls of the terminal receiving chamber which are opposite to each other, a width of the body portion being set to be shorter than a distance between respective outer sides of the pair of flexible arms, the distance between the respective outer sides of the pair of flexible arms being set to be shorter than a distance between the inner walls in opposition to each other of the terminal receiving chamber. The stopping plug includes an abutment wall formed at a front end of the stopping plug in a direction of insertion so as to come into contact with the lance, and other abutment surfaces formed on a rear end of the plug so as to come into contact with guide slopes formed on hole walls of mate-terminal insertion hole formed through the terminal receiving chamber.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: August 5, 1997
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5630732
    Abstract: Pressure-escape holes of a housing closed by a rubber plug and sealed by injection of molten filler are made to communicated with terminal reception rooms through notches. The pressure generated during injection of the filler, when the air in the pressure-escape holes expands can escape into the terminal reception rooms so as to prevent the rubber plug from being inclined, and prevent the filler from leaking outside the housing.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: May 20, 1997
    Inventor: Makoto Yamanashi
  • Patent number: 5628651
    Abstract: In an fixing mechanism of a connector for a structural object which causes a pair of connectors engaged each other to connect to a bulkhead board of a structural object such as a panel of a vehicle, causing the engagement securing member to mount on the female connector housing, when the connector housings are not in engagement with each other, since the engagement stopping projection of the engagement securing member stops displacement of the panel combining arm to the downward, combination of the structural object with the female connector housing is interrupted, when the connector housings are in engagement with each other, it causes said elastic locking arm to displace upward by the resilient locking piece of the male connector housing so that said engagement securing member is capable of being retreated, whereby the structural object is capable of combining with the panel combining arm under the displacement-inhibition for the panel combining arm released.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: May 13, 1997
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5621328
    Abstract: In a spacer detection structure of a connector having: an oval connector housing (2); a plurality of connector terminals (32) housed in the connector housing; and a terminal fixing spacer (4) engaged with the connector terminals when the connector terminals are fully inserted into the connector housing and formed with a curved base wall portion (5) along an oval shape of the connector housing, the curved base wall portion (5) of the terminal fixing spacer (4) is formed with a recessed portion (10) having a flat bottom surface (9) brought into contact with at least one detection plate (8) of a connector fixing jig (7) for inspecting whether the terminal fixing spacer is full inserted into the connector housing. Therefore, it is possible to securely inspect an imperfect insertion of the oval terminal fixing spacer (4) into the oval connector housing (2), without increasing the manufacturing cost of the connector fixing jig (7) of the inspection instrument.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: April 15, 1997
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5569055
    Abstract: A double-lock connector includes a connector housing having terminal receiving chambers, metal terminals for being inserted respectively into the terminal receiving chambers, and a terminal retainer connectable to a rear end portion of the connector housing in a two-stage manner, that is, in a provisionally-connected condition and a completely-connected condition, wherein even when the terminal retainer in the provisionally-connected condition, the metal terminal can be smoothly inserted into the connector housing. The double-lock connector of the present invention includes a connector housing and a terminal retainer for being inserted into the connector housing. The connector housing has a plurality of terminal receiving chambers which are separated from one another by a horizontal partition wall and a vertical partition wall. An elastic retaining piece is provided within each of the terminal receiving chambers.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 29, 1996
    Assignee: Yazaki Corporation
    Inventors: Makoto Yamanashi, Keishi Jinno, Tamio Watanabe, Takayoshi Endo, Sakai Yagi
  • Patent number: 5561273
    Abstract: An electrical cable holding case that can prevent a charged resin material for sealing from cracking by blocking the sharp bending of electrical cables when they are taken out of the case is provided. An electrical cable holding case includes a cylindrical case main body and a lid-like rear holder having electrical insertion holes and resin charging holes. Electrical cables taken out of the case main body via the electrical cable insertion hole of the rear holder are embedded by resin molding from the case main body to the outer surface of the rear holder to hold the electrical cables so as to be watertight. Electrical cable support walls are arranged at the edges of the electrical cable insertion holes outside the rear holder.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: October 1, 1996
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5554043
    Abstract: A connector for a transmission is disclosed. The connector includes a cylindrical part which is provided on one side thereof with a hood part for engaging with a mating connector, a substantially cylindrical transmission-case engaging part formed integral with an opposite side of the cylindrical part so that an outer diameter of the transmmission-case engaging part is larger than a diameter of the cylindrical part and at least one projection provided on a periphery of the cylindrical part for engaging with the other connector. The transmission-case engaging part has an opening formed at one end thereof and an inlet for pouring fluid sealant formed at the other end thereof. The inlet communicates with the opening through a penetration space extending along the periphery of the cylindrical part, and the projection is positioned over the penetration space.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: September 10, 1996
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5551885
    Abstract: A connector system requiring a small force for connecting a pair of connectors by use of a connecting operation lever in which a female connector is accommodated within an accommodating frame including flexible side walls provided with pivots and a male connector is then connected to the female connector within the frame. The connecting operation lever includes: drive plates having pivot holes engaging with pivots of the frame; introducing tapered portions disposed on ends of the inner surface of the drive plate for introducing the pivots; connection guide grooves for guiding the pivots into the pivot holes; and separation-preventing plates arranged outside the side walls of the frame to engage with the ends of the drive plates. Thus, it is possible to obtain the connector system in which the lever is easily fixed to the connector-accommodating frame and the connection of both components are secured once they are connected to each other.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: September 3, 1996
    Assignee: Yazaki Corporation
    Inventors: Makoto Yamanashi, Nobuyuki Akeda
  • Patent number: 5516308
    Abstract: A connector equipped with a terminal locking tool includes a connector housing having a plurality of terminal chambers, an opening portion provided on the outer peripheral wall and a plurality of recesses penetrating through the housing so as to traverse partitions between the terminal chambers from the opening portion; and a terminal locking tool having a cover plate, wall pieces and two side pieces to be inserted into the recesses, which are arranged in a comb-shape on said cover plate. The side pieces have ribs at predetermined positions, and the connector housing has rib guiding grooves for guiding said ribs. The rib guiding grooves correspond in shape to the ribs and are provided at the recesses where the side associated pieces are to be located. Thus, the comb-like terminal locking tool can be smoothly inserted into the connector housing.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: May 14, 1996
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5507666
    Abstract: A lock securing mechanism for securing mutual fitting of connectors for use in, e.g., connecting electric wires to each other is provided which can surely sense a half-fitted condition between connector housings and prevent troubles due to incomplete fitting. A lock arm is provided in a male housing, and a lock securing member having flexible latch fingers is attached to the male housing in a temporarily engaged condition where the flexible latch fingers are positioned to extend along the lock arm and also abut with the lock arm. A female housing has engagement releasing drive sticks which function to move the flexible latch fingers upward to release the temporary engagement between the male housing and the lock securing member so that the lock securing member can be moved into a completely engaged condition, when both the housings are fitted to each other.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: April 16, 1996
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5487680
    Abstract: The present invention provides a method and a structure for coupling two mating connectors for use in vehicles, wherein the structure includes a first connector attached to the vehicle body side wire harness; a second connector attached to the door side wire harness, and a panel provided to the vehicle body for fixing the first connector to a connector fixing hole formed therein, in which the first connector further includes a pair of fitting flanges protrudedly formed at opposite lateral ends of the front portion thereof so as to be fitted with the outside surface of the panel, and a pair of resilient locking pieces respectively disposed behind said fitting flanges to be fitted with the inner surface of the panel. Since the construction is as such, when the first connector is passed through the connector fixing hole from inner side to outer side of the vehicle body side, the fitting operation thereof to the connector fixing hole can be easily done from outside the vehicle body.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 30, 1996
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5478262
    Abstract: The connector with a terminal locking means of this invention eliminates difficulty in terminal insertion work due to warping of the terminal locking means and to gaps between it and the housing, thus assuring smooth insertion of terminals and eliminating their plays and noise. The connector with a terminal locking means is characterized in that terminal guide surfaces are formed on the facing surfaces of the parallel wall pieces of the terminal locking means at locations between the terminal locking portions and that the terminal guide surfaces have their ends tapered in the direction of terminal insertion and removal. The wall pieces are also provided with a plurality of play prevention ribs on the outer surfaces thereof.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: December 26, 1995
    Assignee: Yazaki Corporation
    Inventors: Makoto Yamanashi, Takahiro Sano
  • Patent number: 5474462
    Abstract: A connector system with a lever requiring a small force for connecting a pair of male and female connectors by pivoting a lever. The connector system includes a male connector having a cam pin, a female connector having a pin guiding portion into which the cam pin enters, and a lever member having a cam groove with which the cam pin is engaged and pivoted to the female connector. After the male and female connectors are connected completely by pivoting the lever member, the lever member is engaged with a resilient locking piece arranged in the female connector.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: December 12, 1995
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5472357
    Abstract: A low insertion force connector for fitting a division connector, mounted on one connector, to a second connector in a staged manner, thereby reducing a connector insertion force. The division connector is mounted on the first connector for sliding movement of the first connector relative to the second connector in a connector fitting direction. After the division connector is fitted in the first connector, the first connector is fitted to the second connector. An elastic abutment arm having an abutment portion and a slanting portion is provided on the first connector, an engagement portion for the abutment portion is provided on the division connector, and an abutment release portion for urging the slanting portion to flex the elastic abutment arm is provided on the second connector.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: December 5, 1995
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5439397
    Abstract: A double-lock connector includes a connector housing having terminal receiving chambers, metal terminals for being inserted respectively into the terminal receiving chambers, and a terminal retainer connectable to a rear end portion of the connector housing in a two-stage manner, that is, in a provisionally-connected condition and a completely-connected condition, wherein even when the terminal retainer in the provisionally-connected condition, the metal terminal can be smoothly inserted into the connector housing. The double-lock connector of the present invention includes a connector housing and a terminal retainer for being inserted into the connector housing. The connector housing has a plurality of terminal receiving chambers which are separated from one another by a horizontal partition wall and a vertical partition wall. An elastic retaining piece is provided within each of the terminal receiving chambers.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: August 8, 1995
    Assignee: Yazaki Corporation
    Inventors: Makoto Yamanashi, Keishi Jinno, Tamio Watanabe, Takayoshi Endo, Sakai Yagi
  • Patent number: 5366387
    Abstract: A connector housing has a plurality of terminal receiving chambers. Each of the terminal receiving chambers has a terminal inserting opening. A holder is removably attached to the terminal inserting opening to prevent the terminals from getting out of the terminal receiving chambers. The holder comprises a spread preventing portion for preventing a bundle of wires extending from the terminals from unnecessarily spreading out. A waterproof cover engages with the connector housing for covering the terminal inserting opening and the bundle of wires extending from the terminals.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: November 22, 1994
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5308255
    Abstract: Disclosure is a connector assembly of low insertion force type comprising first and second pairs of connectors which can be engaged with each other with a low insertion force. A connector assembly comprises: a frame on which an engaging lever member having cam grooves is swingably provided; a pair of female connectors which are set in the frame in advance; and a pair of connectors which are engaged with the first pair of connectors, respectively. The male connectors have cam pins. The female connectors and the frame have guide slots into which the cam pins are inserted. The guide slots of the female connectors are aligned with the guide slots of the frame when the female connectors are set in the frame.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: May 3, 1994
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: 5278357
    Abstract: An electric wire holding case which prevents oil from leaking through an electric wire extending into the oil cover of a transmission case or the like. A body and a lid-like holder are included; a partition wall having electric wire insertion holes is provided inside the cylindrical portion of the body; partition chambers are defined on the wall in such a manner that the chambers communicate with the holes at one end of each of the chambers and are open at the other ends thereof; the holder has electric wire insertion holes, and resin injection holes; an engagement member is secured to the exposed portion and accommodated in the chamber corresponding thereto; the chamber is closed at the latter end thereof by the holder; and the resin, which has a softness after being set, is filled into the chamber through the resin injection hole and solidified in the chamber.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: January 11, 1994
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi
  • Patent number: D341528
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: November 23, 1993
    Assignee: Yazaki Corporation
    Inventor: Makoto Yamanashi