Patents Assigned to Dai-Ichi Seiko Co., Ltd.
  • Coaxial-type electric connector
    Patent number: 9502834
    Abstract: Good signal transmission characteristics can be stably obtained by a simple configuration. A void portion formed by inner wall surfaces of a groove disposed so as to face a wire connection part of a cable-shaped signal transmission medium and an inner conductor contact is provided in part of an insulative pressing plate, which is opened/closed integrally with a shell cover portion, and the wire connection part thereof and the void portion are disposed in a radial-direction inner region of a shield shell. As a result, an air layer for impedance adjustment formed by the void portion of the insulative pressing plate is disposed so as to face the wire connection part, at which mismatching of impedance easily occurs, and the matching degree (VSWR) of impedance can be efficiently adjusted.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 22, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Yoichi Hashimoto
  • Electric connector
    Patent number: 9478893
    Abstract: An electric connector includes a housing having an opening and a bottom, the housing being formed at the bottom with a recess, a terminal inserted into the housing through a bottom of the recess such that a top thereof is located in the housing, and a cured resin filled in the recess, the recess having an inclining inner sidewall.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: October 25, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Shuji Touno
  • ELECTRIC CONNECTOR AND ELECTRIC CONNECTOR DEVICE
    Publication number: 20160308308
    Abstract: Electromagnetic shielding about a part connected with a wiring board is easily and reliably carried out by a simple configuration.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 20, 2016
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takashi MASUNAGA
  • Electric connector
    Patent number: 9461405
    Abstract: An electric connector includes a male connector and a female connector, the male connector including a cylindrical main portion, and a male contact terminal formed at the main portion. The female connector includes a hole into which the main portion is fit, and a female contact terminal formed at the hole for making electrical contact with the male contact terminal when the main portion is fit into the hole. One of the male connector and the female connector includes a guide shaft axially extending in a direction in which the male connector is fit into the female connector, and the other of the male connector and the female connector includes a guide hole for allowing the guide shaft to be inserted thereinto to guide the guide shaft in the direction.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: October 4, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Shuji Touno
  • Circuit board connecting device
    Patent number: 9455511
    Abstract: A circuit board connecting device comprising a first connector mounted on a first circuit board and having a first housing with an engaging recess, first signal contacts each having a first contacting portion and a first board connecting portion and a conductive shell for covering an outer peripheral surface of the first housing surrounding the engaging recess, and a second connector mounted on a second circuit board and having a second housing operative to be put in the engaging recess and second signal contacts each having a second contacting portion and a second board connecting portion, wherein when the second housing is put in the engaging recess, the second contacting portion of each of the second signal contacts is in contact with the first contacting portion of a corresponding one of the first signal contacts and the first and second signal contacts are surrounded by the conductive shell.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: September 27, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Satoru Taguchi
  • CIRCUIT BOARD CONNECTING DEVICE
    Publication number: 20160276766
    Abstract: A circuit board connecting device comprising a first connector mounted on a first circuit board and having a first housing with an engaging recess, first signal contacts each having a first contacting portion and a first board connecting portion and a conductive shell for covering an outer peripheral surface of the first housing surrounding the engaging recess, and a second connector mounted on a second circuit board and having a second housing operative to be put in the engaging recess and second signal contacts each having a second contacting portion and a second board connecting portion, wherein when the second housing is put in the engaging recess, the second contacting portion of each of the second signal contacts is in contact with the first contacting portion of a corresponding one of the first signal contacts and the first and second signal contacts are surrounded by the conductive shell.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 22, 2016
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Satoru TAGUCHI
  • Electric connector
    Patent number: 9437972
    Abstract: An electric connector includes a male connector and a female connector, the male connector including a cylindrical main portion, and a male contact terminal formed at the main portion. The female connector includes a hole into which the main portion is fit, and a female contact terminal formed at the hole for making electrical contact with the male contact terminal when the main portion is fit into the hole. One of the male connector and the female connector includes a guide shaft axially extending in a direction in which the male connector is fit into the female connector, and the other of the male connector and the female connector includes a guide hole for allowing the guide shaft to be inserted thereinto to guide the guide shaft in the direction.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: September 6, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Shuji Touno
  • Connector terminal
    Patent number: 9425532
    Abstract: A connector terminal includes: a terminal body operable to be inserted into a terminal space formed in a housing; and an elastic contact piece arranged in the terminal body. The terminal body includes: a bottom wall possessing an opening; and a top wall facing the bottom wall away therefrom. The elastic contact piece includes: a first end fixed to the bottom wall; a second end abutting on the top wall; and a U-shaped folded portion. When the terminal body is inserted into the terminal space, the folded portion runs onto a raised portion, a part of the elastic contact piece moves out of the opening, and the second end abuts on the bottom wall.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 23, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Shuji Touno, Hiroyuki Kurita
  • COAXIAL-TYPE ELECTRIC CONNECTOR
    Publication number: 20160218471
    Abstract: Good signal transmission characteristics can be stably obtained by a simple configuration. A void portion formed by inner wall surfaces of a groove disposed so as to face a wire connection part of a cable-shaped signal transmission medium and an inner conductor contact is provided in part of an insulative pressing plate, which is opened/closed integrally with a shell cover portion, and the wire connection part thereof and the void portion are disposed in a radial-direction inner region of a shield shell. As a result, an air layer for impedance adjustment formed by the void portion of the insulative pressing plate is disposed so as to face the wire connection part, at which mismatching of impedance easily occurs, and the matching degree (VSWR) of impedance can be efficiently adjusted.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 28, 2016
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Yoichi HASHIMOTO
  • Electrical connector and electrical connector device
    Patent number: 9397447
    Abstract: To allow easy and reliable establishment of electromagnetic shielding regarding a portion connected to a circuit board with a simple structure, a shield plate provided to a fit-in holding member which keeps a state of fitting in a counterpart connector externally covers board connection legs of counterpart contact members and, simultaneously with an operation of rotating the fit-in holding member when connectors fit together, electromagnetic shielding with respect to the board connection legs is immediately established. Also, a ground connecting units provided to the fit-in holding member are connected to ground connection conductive paths provided at positions near the board connection legs of the counterpart contact members, thereby obtaining favorable electromagnetic shielding characteristics. Also, a connected state at the board connection legs can be favorably confirmed.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: July 19, 2016
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Takaki Kurachi
  • Connector housing, electric connector and method of inserting connector terminal into connector housing
    Patent number: 9385451
    Abstract: A connector housing includes a terminal housing in which at least one connector terminal electrically connecting two printed circuit boards to each other is housed. The terminal housing includes a holder for holding the at least one connector terminal therewith, the holder being elastically deformable in accordance with a displacement of the at least one connector terminal.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: July 5, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Jun Mukunoki, Takuya Takeda
  • Electric connector
    Patent number: 9379475
    Abstract: The electric connector includes a plurality of terminals each having a stepped portion recessed or raised in a direction intersecting a direction in which the terminals are inserted into a later-mentioned housing, a housing formed with an opening, the terminals being inserted into the housing, and a holder inserted into the housing through the opening and engaged to the stepped portions of the terminals to thereby fix the terminals in the housing, the holder including a front and a pair of sidewalls all of which are shaped to be engageable to the stepped portions of the terminals when the holder is inserted into the housing, and a pair of flexible portions resiliently deformable to move towards and away from each other.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 28, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Shuji Touno
  • Seal having a packing portion extending from a flat portion with a step
    Patent number: 9379477
    Abstract: A seal used for an electric connector having a part protruding outwardly through a first opening formed at a wall of a casing, the seal filling a space formed between an outer surface of the part and an inner surface of the first opening, includes a flat portion formed with a second opening having an inner edge entirely or partially identical in shape with an inner edge of the first opening, the flat portion lying on the wall such that the second opening overlaps the first opening, and a packing portion extending from the flat portion, and making close contact with both the outer surface of the part and the inner surface of the first opening.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: June 28, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Shogo Jinnouchi, Hisashi Hamachi
  • Adaptor for connecting a flat circuit device to an electrical connector
    Patent number: D759598
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: June 21, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Hideki Aoki
  • Electrical connector
    Patent number: D760169
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 28, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Junji Ohsaka
  • Electrical connector
    Patent number: D761207
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: July 12, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Junji Ohsaka
  • Terminal metal fitting
    Patent number: D766834
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 20, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Takuya Takeda
  • Terminal metal fitting
    Patent number: D766835
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 20, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Takuya Takeda
  • Terminal metal fitting
    Patent number: D766836
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 20, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Takuya Takeda
  • Electrical connector
    Patent number: D769825
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 25, 2016
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Kosuke Ozeki