Patents Assigned to Yamaichi Electronics Co., Ltd.
  • Patent number: 8444441
    Abstract: The card connector, into which an IC card having a plurality of pads arranged in parallel at front and back positions is inserted, includes a plurality of contacts each contacting a corresponding one of the plurality of pads of the IC card and a base member that supports the plurality of contacts. Each of the plurality of contacts has a first and a second elastic piece each having a contact point portion that electrically contacts a pad of the IC card. The first and second elastic pieces are formed such that contact pressures of the respective contact point portions against the pads are different from each other. The plurality of contacts is arranged on the base member in parallel at front and back positions and a first and a second contact piece are arranged in an opposite manner in contacts aligned linearly at front and back positions.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: May 21, 2013
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Satoru Yoshida, Kouji Kikuchi
  • Publication number: 20130089991
    Abstract: A receptacle connector used as an electrical connector. The receptacle connector includes: a housing in which a receiving space is formed, a connection target being inserted in the receiving space; a plurality of contacts being arranged parallel to one another, having a plurality of signal line contacts and a plurality of ground contacts, and being placed with every two adjacent signal line contacts for transmitting signals interposed between two ground contacts; a supporting member made of an electrically-insulating synthetic resin material, and configured to integrally support and fix thereto the plurality of contacts; and a common contact made of a conductive resin material and configured to be provided with a certain gap from each of the plurality of ground contacts to electrically connect the plurality of ground contacts. The plurality of contacts integrated together by the supporting member are received in the receiving space.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventor: Toshiyasu ITO
  • Publication number: 20130051738
    Abstract: In a receptacle cage, a front EMI fingers in a tubular shape serving as a first shield member is provided on the entire periphery of a substantially rectangular module slot. In addition, a gap between outer peripheral surfaces of an upper case as well as a lower plate of an optical module connected to a receptacle connector in a receptacle connector accommodating portion and an inner surface of the cage is shielded by a top EMI fingers serving as a second shield member and side EMI fingers serving as third shield members. Moreover, the lower plate comes into contact with a bottom wall portion which is grounded.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 28, 2013
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventor: Toshiyasu ITO
  • Patent number: 8363410
    Abstract: Provided is an electric connecting apparatus configured to dissipate heat generated from a contact itself via an insulating plate, a metallic enclosure, and a printed wiring board. The electric connecting apparatus includes at least a housing configured to accommodate multiple contacts. At least part of the housing is made of a material having high heat conductivity. The multiple contacts are arranged linearly in at least one row. The multiple contacts are in abutting contact with the at least part of the housing via at least an insulating member made of an electrically insulative material having high heat conductivity.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: January 29, 2013
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Eiji Kobori, Takeyuki Suzuki
  • Publication number: 20130002039
    Abstract: A receiving unit portion and a transmission unit portion are brought close to each other. Then, when upper end surfaces of protrusions (18BD) are brought into contact with a surface of a reception side wiring board (30A) at a given pressure attributed to an elastic force of a flexible wiring board (18B), a gap between an electrode pad (18bi) and an electrode pad (30ai) is limited at a predetermined value by the protrusions (18BD).
    Type: Application
    Filed: December 24, 2010
    Publication date: January 3, 2013
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventor: Hideki Kusamitsu
  • Publication number: 20130005165
    Abstract: A ground contact plate in a contact unit includes fixing pieces provided at predetermined equal intervals in a longitudinal direction. The fixing pieces are respectively fitted in opposed slits in ground contact terminals via a transmission blade.
    Type: Application
    Filed: June 6, 2012
    Publication date: January 3, 2013
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Fumihito IKEGAMI, Hiroaki KUKITA
  • Patent number: 8312626
    Abstract: To make the fracturing position controlled conveniently with high precision when the substrate end of the probe contact is fractured and cut off. By compressing the front face of the substrate end portion with the pushing member, brittle fracture is generated on the substrate along the carved groove, and the substrate end portion is cut off from the substrate. The fracturing position in the above-mentioned fracturing is controlled so as to be along the fracturing position whose extension puts thereon the stress concentrating ends of two fracturing control structures. Here, the fracturing control structure is located with high positional precision on the front face of the substrate through the alignment technique of photolithography. In this way, resilient armatures constituted of the tips projected from the fracturing position coming to be the end of the substrate 11a can be stably formed with high precision.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: November 20, 2012
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Takeyuki Suzuki, Ryo Ujike, Yoshinori Wakabayashi
  • Publication number: 20120249174
    Abstract: A contact probe having a plunger; a top contacting member which is provided at a tip end of the plunger and is brought into contact with an electrode of a semiconductor device; a bottom contacting member which is brought into contact with an electrode of a testing board; and an elastic member for urging the top contacting member and the bottom contacting member in opposite directions away from each other. The plunger is formed into a cylindrical shape and includes a through-hole which penetrates through the plunger in an axial direction thereof. The top contacting member includes a plurality of mountain-shaped sharp portions at a tip end thereof, and each of the sharp portions is asymmetrical with respect to a straight line that passes through a peak of the sharp portion and extends along an axial direction of the plunger, and is bent toward a center line of the plunger.
    Type: Application
    Filed: September 13, 2011
    Publication date: October 4, 2012
    Applicant: YAMAICHI ELECTRONICS., CO. LTD.
    Inventors: Katsumi SUZUKI, Takeyuki SUZUKI
  • Publication number: 20120250326
    Abstract: A luminous-body flexible board includes a flexible board including a metal substrate of a bendable plate, an insulating layer of liquid crystal polymer of which one surface is joined directly to the metal substrate and a conductor layer joined to the other surface of the insulating layer and formed in a wiring pattern. The flexible board further has a plurality of cavities dented on a side of the conductor layer and protruded on a side of the metal substrate of the flexible board, being arranged in juxtaposition and configured to be mounted a luminous element respectively therein.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 4, 2012
    Applicant: YAMAICHI ELECTRONICS CO. LTD.
    Inventor: Noriaki SEKINE
  • Patent number: 8272882
    Abstract: A contact terminal (26ai) comprises: a pair of movable side contact pieces (26M) and (26F) which pinch or release a ball-like electrode portion (DVa) of a semiconductor device (DV); a fixed side terminal (26T) having on one end a contact point (26te) coming into contact with an electrode group (PBE) of a printed wiring board (PB); and a fixing portion (26C) which connects proximal end portions of the pair of elastic movable side contact pieces (26M) and (26F) to the other end of the fixed side terminal (26T). The fixed side terminal (26T) formed into a curved shape is elastic and has the one end thereof joined to the fixing portion (26C). The fixed side terminal (26T) is formed of a plurality of curved portions (26ta, 26tb, 26tc, and 26td) and the contact point (26te) provided continuous with one another.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: September 25, 2012
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Tooru Sakai, Kuniyoshi Koumi
  • Publication number: 20120220145
    Abstract: A card connector for accommodating either of a first card and a second card with the different size from the first card, includes: contacts including first contacts for the first card and second contacts for the second card; a partition plate which partitions a card accommodation space up and down; and an eject mechanism including an eject member which slides in the card connector in a front-back direction, a card contacting member coupled to the ejected member and having a first card pressing surface that abuts on the first card, and a movable metal member attached to the card contacting member and having a second card pressing surface that abuts on the second card and that is moved between a first position and a second position.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 30, 2012
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventor: Yosuke TAKAI
  • Publication number: 20120207427
    Abstract: A printed circuit board is pinched between end faces of a metal receptacle support member and a metal backup member in an optical-module plug portion, the flexible wiring board having a light emitting/receiving element unit, a reception chip portion, a driver element, and the like on a common planar surface thereof, such that the end face of the metal receptacle support member is in contact with a surface of the printed circuit board and that the driver element is in contact with the metal backup member.
    Type: Application
    Filed: January 9, 2012
    Publication date: August 16, 2012
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventor: Toshiyasu ITO
  • Patent number: 8226437
    Abstract: A connector system with a connector and a complementary connector, wherein the connector includes a housing element with a locking device and an electrical contact element, wherein the electrical contact element is arranged in the area of a front end of the housing element, and includes a closing element arranged on the housing element, which closing element surrounds both at least the rear end of the housing element and an area of the electrical cable arranged outside the housing element, and is closely connected with the housing element and the electrical cable such that at the rear end, the interior of the housing element is sealed from the surrounding in a substantially fully moisture-tight manner. The closing element may, optionally, be applied in a substantially liquid form.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: July 24, 2012
    Assignees: Yamaichi Electronics Co., Ltd., Yamaichi Electronics Deutschland GmbH
    Inventors: Michael Quiter, Sven Braun
  • Publication number: 20120132458
    Abstract: In a flexible circuit board, signal wirings and ground wirings are provided on one main surface of a base film formed of a thermoset resin. A coverlay film formed of a thermoplastic resin is adhered to and integrated with the signal wirings, ground wirings, and base film. External terminals 15 are disposed in a predetermined conductor pattern on one main surface of the coverlay film, and a plated layer is formed on each of the external terminals. A first ground layer and a rear side resin film are adhered in this order below the base film to be integrated.
    Type: Application
    Filed: September 16, 2011
    Publication date: May 31, 2012
    Applicant: YAMAICHI ELECTRONICS CO. LTD.
    Inventor: Noriaki SEKINE
  • Publication number: 20120122355
    Abstract: The contact head includes a head base, and at least two elastic contact pieces located on an upper end portion of the head base and configured to electrically contact a contact target object. A dent having a circular horizontal cross-sectional shape is formed at a central portion surrounded by the at least two elastic contact pieces. Additionally, each of the elastic contact pieces is formed with a tip end serving as a free end of the elastic contact piece located on a circumference of at least one virtual circle which is a circle concentric with an inscribed circle inscribed in a horizontal cross-sectional shape of the head base and which has a diameter being the same as or smaller than a diameter of the inscribed circle. Moreover, the contact piece is formed to be elastically deformable in a vertical direction by being formed to extend spirally.
    Type: Application
    Filed: March 25, 2011
    Publication date: May 17, 2012
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventor: Akihiko Hemmi
  • Patent number: 8177564
    Abstract: A receptacle connector of the present invention is used as an electrical connector configured to connect two circuit boards. The receptacle connector includes: a housing in which a receiving space is formed, a connection target being inserted in the receiving space; a plurality of contacts being arranged parallel to one another, having a plurality of signal line contacts and a plurality of ground contacts, and being placed with every two adjacent signal line contacts for transmitting signals interposed between two ground contacts; a supporting member made of an electrically-insulating synthetic resin material, and configured to integrally support and fix thereto the plurality of contacts; and a common contact made of a conductive resin material and configured to electrically connect the plurality of ground contacts together among the plurality of contacts. The plurality of contacts integrated together by the supporting member are received in the receiving space.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: May 15, 2012
    Assignees: Yamaichi Electronics Co., Ltd., Yamaichi Electronics USA, Inc.
    Inventors: Toshiyasu Ito, Donald Eric Thompson, Takeshi Nishimura
  • Publication number: 20120115366
    Abstract: A device, wherein, at cells 10ai of a metallic upper housing 10 corresponding to a signal line, between an end portion of an adapter 24 that has electrically insulating properties the inner surface of an upper housing 12 that has electrically insulating properties, an annular air layer Ai is formed at the peripheries of sleeves 20S of contact terminals 20ai that have the same structure as each other, and wherein, at the cells 10ai that correspond to ground lines, contact points 20CT2 of the contact terminals 20ai are inserted in through-holes 12ai of the lower housing 12, and their contact points 20CT1 are inserted into small diameter holes 22b of conductive collars 22 that touch the inner surfaces of the cells 10ai.
    Type: Application
    Filed: September 7, 2011
    Publication date: May 10, 2012
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Katsumi SUZUKI, Takeyuki SUZUKI
  • Patent number: 8167631
    Abstract: The present invention provides a card edge connector as a high-speed differential signal connector configured to equalize electric potentials of ground contacts adjacent to signal line contacts, and thus to reduce crosstalk between adjacent signal line contacts. The card edge connector serves as a female connector in which multiple signal line contacts and multiple ground contacts are arranged in parallel in at least one row. In the card edge connector, the signal line contacts and the ground contacts are arranged in a way that every two signal line contacts for high-speed signals to send and return respectively therethrough are interposed between two ground contacts, and all of the multiple ground contacts arranged in the one row are electrically connected to one another by use of a common contact.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: May 1, 2012
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Toshiyasu Ito, Hiroaki Kukita
  • Patent number: 8167643
    Abstract: The card connector in which a card receiving space for containing at least a part of a small card incorporating an integrated circuit is formed by a cover member having at least a top board and right and left side walls and a base member having at least a bottom wall, a front wall, and right and left side walls, the card connector includes: a plurality of contacts penetrating the front wall of the base member and being elastically deformably supported by the base member; and a heat dissipating mechanism located behind the plurality of contacts and elastically deformably supported by the base member. The heat dissipating mechanism includes at least one heat dissipating piece having a free end at one end. The heat dissipating mechanism is disposed at a cutoff portion formed at the bottom wall of the base member.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: May 1, 2012
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Satoru Yoshida, Yoshiharu Ishii
  • Patent number: 8157454
    Abstract: A receptacle (20) detachably accommodating a connector plug (34) connected to optical fibers (32) is rotatably supported by a shaft (14) provided in an installation table (10). The receptacle (20) is biased by a leaf spring (16) for biasing opposite ends of the shaft (14) in one direction. A locking/unlocking mechanism for selectively locking or unlocking the receptacle (20) connected with the connector plug (34) relative to the installation table (10) and a locking mechanism fixing portion (12) includes a locking nib (30Ra) of a lock releasing button (30R), a locking nib (30La) of a lock releasing button (30L), locking nib receiving portions (12na, 12nb) and a coil spring (31).
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: April 17, 2012
    Assignees: Yamaichi Electronics Co., Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Toshiyasu Ito, Hiromasa Tanobe, Yoshihisa Sakai, Masaru Kobayashi, Ryo Nagase