Patents by Inventor Kaoru Matsumura

Kaoru Matsumura 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: 20090203241
    Abstract: A lever fitting type connector includes a male connector having a temporary-retaining convex portion, a lever having a temporary-retaining portion, and a female connector having a fitting space. An inner wall forming the fitting space has a guiding groove portion and a receiving groove portion and has a release portion. When the fulcrum projection is located in the guide groove portion at the initial process of the fitting operation, a clearance represented by X is formed between the fulcrum projection and an edge wall of the guide groove portion, and a clearance represented by Y is formed between the temporary-retaining portion and the temporary-retaining convex portion, and the formula, (X×b<Y×a), is established where a represents the distance between an axis of rotation movement of the lever and the fulcrum projection, and b represents the distance between the axis of rotation movement of the lever and the temporary-retaining portion.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 13, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro TSURUTA
  • Publication number: 20090203240
    Abstract: A lever fitting type connector includes a male connector, a lever which is rotatably attached to the male connector, and a female connector which has a fitting space into which the male connector is inserted. The lever has a fulcrum protrusion provided on one end portion of the lever. An inner wall forming the fitting space of the female connector has a guiding groove portion and a receiving groove portion for receiving the fulcrum protrusion. The guiding groove portion extends in a fitting direction of the male connector with respect to the female connector from an upper end portion of the inner wall toward the inside of the fitting space. The receiving groove portion which is communicated with the guiding groove portion and extends in a direction intersecting the fitting direction from one end of the guiding groove portion which is away from the upper portion of the inner wall.
    Type: Application
    Filed: January 28, 2009
    Publication date: August 13, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro TSURUTA, Koichi SUGIYAMA
  • Publication number: 20090203248
    Abstract: A connector, includes: a connector housing including an engaging space to receive a mating connector through the entrance, and a terminal container; a male terminal including a base end fitted to the terminal container and an electric connecting portion extended from the base end into the engaging space; an aligning plate which is arranged within the engaging space, includes a terminal insertion hole for passing the electric connecting portion therethrough, and adapted to move in the engaging space between a temporarily and a permanently locked positions; a temporarily locking hook including a projection projected from an arm portion so as to hold the aligning plate at the temporarily locked position; and a contact part provided on the projection to contact the aligning plate, so that a vector for pulling the arm portion inward into the engaging space is generated when the aligning plate is pressed toward the terminal container.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 13, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro Tsuruta, Hiroshi Kobayashi
  • Publication number: 20090163061
    Abstract: Provided is a lever type connector for fitting a connector by a swing operation of a lever 100, in which a notch portion 104 is provided at lever side plates of a substantially U-shaped lever, and it is possible to mount the lever on a male connector housing while swinging the lever about a rib as a fulcrum by engaging the notch portion with a male connector housing rib 14. When swing fulcrum protrusions 16 and 17 and swing holes 106 and 107 are fitted to each other by swinging the lever about the rib as a fulcrum in an inner face of an outer peripheral portion of the lever side plate, the lever side plate is led to be mounted on the swing fulcrum protrusion to promote the lover side plate to open outward. A guide slope 108 thereby guiding the swing holes to be fitted to the swing fulcrum protrusions is provided.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 25, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro TSURUTA
  • Publication number: 20090163062
    Abstract: Provided is a lever type connector for fitting connectors by swinging a lever 110, in which a lever side plate 102 is provided with a temporary locking arm 110. The temporary locking arm is provided with a bending restricting protrusion 113. When the temporary locking arm is deformed by applying excessive external force to a lever in a state where the lever before connector fitting is positioned at a temporary locking position, the bending restricting protrusion 113 restricts bending of the temporary locking arm in a temporary releasing direction (outward direction) by engaging with the inner face side of the lever side plate.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 25, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro TSURUTA
  • Publication number: 20090163063
    Abstract: Provided is a lever type connector for fitting connectors by swinging a lever 100, in which protrusions 115 and 116 are provided on an outer peripheral portion of the one end side of the lever side plate 102, a reception portion 15A for preventing the lever side plate from opening outward by engaging with the protrusions provided on the outer peripheral portion of the lever side plate in a male connector housing 10H for mounting the lever, and the protrusions 115 and 116 and the reception portion 15A are provided to engage with each other when the lever mounted on at least the male connector housing is set to a temporary locking position before connector fitting.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro TSURUTA
  • Publication number: 20090142958
    Abstract: Retaining projections are formed on and project outwardly in a right-left direction respectively from right and left side walls of a spacer. The retaining projections are used for achieving a provisionally-retained condition and a completely-retained condition of the spacer. When the side walls are elastically deformed, the retaining projections slide over respective retaining portions of a connector housing to thereby achieve the retained condition. The side walls which can be elastically deformed inwardly in the forward-rearward direction form portions of right and left outermost terminal passage holes, and therefore must hold respective metal terminals, respectively. Therefore, holding projections are formed on and project inwardly in the right-left direction respectively from the side walls. These terminal holding projections serve to hold the respective metal terminals in predetermined positions.
    Type: Application
    Filed: November 12, 2008
    Publication date: June 4, 2009
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru MATSUMURA, Akihiro TSURUTA
  • Patent number: 7488219
    Abstract: An onboard connector is mounted on a circuit board. The onboard connector includes a plurality of terminals, each of which having a first electrical contact portion formed at one end portion thereof so as to be electrically connected to a mating connector and a second electrical contact portion formed at the other end portion thereof so as to be press-fitted into the corresponding through-hole land to electrically contact an inner peripheral surface of the through-hole land, the second electrical contact portion being plated, and a connector housing including a plurality of terminal receiving chambers which are open to a lower face of the connector housing. The terminals are received in the connector housing so that the second electrical contact portions project from the lower surface of the connector housing through openings of the respective terminal receiving chambers.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: February 10, 2009
    Assignee: Yazaki Corporation
    Inventor: Kaoru Matsumura
  • Patent number: 7458148
    Abstract: A joint connector includes a plurality of connection terminals, each of the connection terminals including a contact portion, a housing fixing portion and a press-fitting portion, a connector housing that includes a plurality of terminal fixing portions for fixing the corresponding housing fixing portions of the connection terminals, and a board that includes a plurality of through holes in which the corresponding press-fitting portions of the connection terminals are press-fitted respectively so as to electrically connect the connection terminals. The board is disposed in contact with the terminal fixing portion of the connector housing.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: December 2, 2008
    Assignee: Yazaki Corporation
    Inventor: Kaoru Matsumura
  • Publication number: 20080239326
    Abstract: There is provided a laser machining apparatus capable of improving workpiece machining precision. The laser machining apparatus having a movable table for supporting a workpiece to be machined and a camera for detecting position of the workpiece by reflection light from an alignment mark formed through the workpiece further includes a jig plate provided between the table and the workpiece and having light-receiving holes that overlap with the alignment mark and that are larger than the alignment mark (through hole).
    Type: Application
    Filed: February 20, 2008
    Publication date: October 2, 2008
    Inventors: Kaoru Matsumura, Fumiaki Kimura
  • Patent number: 7377796
    Abstract: In a connector 1 comprising: a connector housing 11 including two guide grooves 25 respectively for receiving two cam pins 15, and a lever 12 including two cam grooves 44 respectively engageable with the cam pins 15 and rotatably supported on the connector housing 11, wherein, in the initially engaged state of the connector 1 with a partner connector 2, the cam pins 15 are disposed in the entrance openings of the guide grooves 25 and the cam grooves 44, and, when the lever 12 is operated and rotated, the cam pins 15 are respectively engaged with the cam grooves 44 and are pushed deep into the guide grooves 25, whereby the connector 1 is completely engaged with the partner connector 2; and, the connector 1 further including a dustproof cover 13 removably mounted on the connector housing 11 for covering the insertion opening of the connector housing 11 into which the partner connector 2 can be inserted, wherein the dustproof cover 13 includes a pressure portion 54a to be pressed against the lever 12 and, by app
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: May 27, 2008
    Assignee: Yazaki Corporation
    Inventors: Kaoru Matsumura, Tomoya Sannomiya
  • Patent number: 7361031
    Abstract: A printed circuit board assembly is formed by a press-fit connector attached to a printed circuit board. The press-fit connector includes a plurality of press-fit terminals and a housing. An overlapping resist part is formed on the printed circuit board. The overlapping resist part closely contacts the housing, and is arranged in a circular shape at an outer circumference of a through hole. By dipping the housing and the overlapping resist part closely contacting each other into a synthetic resin bath, the synthetic resin is filled in an inside of the through hole and a space surrounded by the overlapping resist part, and swarf of the press-fit terminal is fixed in the synthetic resin.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: April 22, 2008
    Assignee: Yazaki Corporation
    Inventor: Kaoru Matsumura
  • Publication number: 20070270001
    Abstract: A printed circuit board assembly is formed by a press-fit connector attached to a printed circuit board. The press-fit connector includes a plurality of press-fit terminals and a housing. An overlapping resist part is formed on the printed circuit board. The overlapping resist part closely contacts the housing, and is arranged in a circular shape at an outer circumference of a through hole. By dipping the housing and the overlapping resist part closely contacting each other into a synthetic resin bath, the synthetic resin is filled in an inside of the through hole and a space surrounded by the overlapping resist part, and swarf of the press-fit terminal is fixed in the synthetic resin.
    Type: Application
    Filed: April 5, 2007
    Publication date: November 22, 2007
    Applicant: YAZAKI CORPORATION
    Inventor: Kaoru Matsumura
  • Publication number: 20070128902
    Abstract: In a connector 1 comprising: a connector housing 11 including two guide grooves 25 respectively for receiving two cam pins 15, and a lever 12 including two cam grooves 44 respectively engageable with the cam pins 15 and rotatably supported on the connector housing 11, wherein, in the initially engaged state of the connector 1 with a partner connector 2, the cam pins 15 are disposed in the entrance openings of the guide grooves 25 and the cam grooves 44, and, when the lever 12 is operated and rotated, the cam pins 15 are respectively engaged with the cam grooves 44 and are pushed deep into the guide grooves 25, whereby the connector 1 is completely engaged with the partner connector 2; and, the connector 1 further including a dustproof cover 13 removably mounted on the connector housing 11 for covering the insertion opening of the connector housing 11 into which the partner connector 2 can be inserted, wherein the dustproof cover 13 includes a pressure portion 54a to be pressed against the lever 12 and, by app
    Type: Application
    Filed: December 7, 2006
    Publication date: June 7, 2007
    Applicant: YAZAKI CORPORATION
    Inventors: Kaoru Matsumura, Tomoya Sannomiya
  • Publication number: 20070077813
    Abstract: An onboard connector is mounted on a circuit board. The onboard connector includes a plurality of terminals, each of which having a first electrical contact portion formed at one end portion thereof so as to be electrically connected to a mating connector and a second electrical contact portion formed at the other end portion thereof so as to be press-fitted into the corresponding through-hole land to electrically contact an inner peripheral surface of the through-hole land, the second electrical contact portion being plated, and a connector housing including a plurality of terminal receiving chambers which are open to a lower face of the connector housing. The terminals are received in the connector housing so that the second electrical contact portions project from the lower surface of the connector housing through openings of the respective terminal receiving chambers.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 5, 2007
    Inventor: Kaoru Matsumura
  • Publication number: 20070004605
    Abstract: A lubricating composition which comprises: (A) a polyalkyleneglycol of the general formula (I): RO(RaO)x(RbO)y(RcO)zRd ??(I) wherein: R is a C4 to C6 substituent comprising a heterocyclic ring, in which the heteroatom(s) in said ring(s) is (are) oxygen and/or sulphur, Ra is a C2 alkylene group, Rb is a C3 alkylene group, Rc is a C4 alkylene group, Rd is the same as R, or is a hydrogen atom or a C1-C20 alkyl or C1-C20 acyl group, x, y, z are each independently 0 or an integer in the range of from 1 to 100, and x+y+z=4 to 100; and (B) an ester of a alcohol containing two or more hydroxyl groups with a mono- or dicarboxylic acid, or an ester of an dicarboxylic acid with an alcohol containing one hydroxyl group.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 4, 2007
    Inventors: Kaoru Matsumura, Elizabeth Dixon
  • Patent number: 7098423
    Abstract: There is provided a printed board machining apparatus having fewer restrictions in terms of the length of printed boards to be machined, that can be readily controlled in positioning a sheet-like workpiece and that is capable of improving the machining efficiency. Plural sets of optical scanners and f? lenses that compose laser condensing and positioning mechanisms are disposed apart in a width direction (X direction) orthogonal to a longitudinal direction (Y direction) of the sheet-like workpiece and two sheet-like workpieces are fixed on a machining table in parallel, and in the width direction to machine printed boards on the sheet-like workpieces The disposition of the f? lenses allows the machining of the plurality of lengthy printed boards to be completed practically at the same time or at the same time without limiting the length of the printed boards to be machined.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: August 29, 2006
    Assignee: Hitachi Via Mechanics, Ltd.
    Inventors: Mitsuru Masuda, Kaoru Matsumura
  • Publication number: 20060178023
    Abstract: A joint connector includes a plurality of connection terminals, each of the connection terminals including a contact portion, a housing fixing portion and a press-fitting portion, a connector housing that includes a plurality of terminal fixing portions for fixing the corresponding housing fixing portions of the connection terminals, and a board that includes a plurality of through holes in which the corresponding press-fitting portions of the connection terminals are press-fitted respectively so as to electrically connect the connection terminals. The board is disposed in contact with the terminal fixing portion of the connector housing.
    Type: Application
    Filed: December 29, 2005
    Publication date: August 10, 2006
    Inventor: Kaoru Matsumura
  • Patent number: 7029314
    Abstract: A press-contacting connector includes a connector housing, a wire holder and an assisting plate. The connector housing has a plurality of press-contacting terminals and a holder fitting portion in which a plurality of press-contacting blades of the press-contacting terminals are provided. The wire holder is fitted into the holder fitting portion of the connector housing, and holding a plurality of wires. The assisting plate is attached to the wire holder so as to press-hold press-contacting portions of the wires to the wire holder. The assisting plate has a plurality of guide portions which guides the press-contacting blades to the press-contacting portions of the wires respectively. When the wire holder is fitted into the connector housing, the press-contacting blades press-contact the press-contacting portions of the wires respectively.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: April 18, 2006
    Assignee: Yazaki Corporation
    Inventors: Takashi Muro, Kaoru Matsumura, Nobuyuki Sakamoto, Toshiharu Kawashima, Makoto Yamanashi
  • Patent number: 7018244
    Abstract: A connector includes an inner housing which holds a plurality of electric wires, an outer housing which accommodates the inner housing along a first direction, a fixing member which fixes the inner housing and the outer housing to each other and a convex portion which protrudes from one of an outer surface of the inner housing and an inner surface of the outer housing in the first direction. When the fixing member fixes the inner housing and the outer housing to each other, the convex portion abuts against the other of the outer surface of the inner housing and the inner surface of the outer housing so that a repulsive force is generated between the inner housing and the outer housing.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: March 28, 2006
    Assignee: Yazaki Corporation
    Inventors: Takashi Muro, Kaoru Matsumura, Nobuyuki Sakamoto, Toshiharu Kawashima