Patents Assigned to Dai-Ichi Seiko Co., Ltd.
  • Publication number: 20130102173
    Abstract: With a simple configuration, increase in size can be avoided, usage durability is improved, and occurrence of insufficient electrical connection caused by dust can be prevented well. A crank part is provided in at least one of both contacts including elastic beam-like members. Both of the contacts are provided with cut-away parts, which substantially increase the span lengths of the elastic beam-like members, and gaps between the contacts and an insulating housing which ensure flexibility of the elastic beam-like members to ensure flexibility and prevent permanent deformation of the contacts while enhancing elasticity of the contacts. Dust which has entered the interior thereof is moved along the crank part to ensure electrical conductivity well, which is an employed configuration.
    Type: Application
    Filed: October 8, 2012
    Publication date: April 25, 2013
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: DAI-ICHI SEIKO CO., LTD.
  • Patent number: 8414306
    Abstract: A coaxial connector device which comprises an insulated base placed on a circuit board, a signal-joining contacting conductor fixed to the insulating base with a contact connecting portion and an signal-connecting portion, and a grounding contacting conductor fixed to the insulating base with a cylindrical side wall portion surrounding the contact connecting portion, ground-connecting portions and connecting portions for connecting the cylindrical side wall portion with each of the ground-connecting portions, wherein a groove is formed between the grounding contacting conductor and the signal-joining contacting conductor on the insulating base and at least one of the connecting portions is deformed for becoming distant from the signal-joining contacting conductor.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: April 9, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Tetsuya Tagawa, Katsuaki Obayashi
  • Patent number: 8398417
    Abstract: An electrical connector comprising a housing provided on one of opposite end portions thereof with an opening through which a flat circuit device is inserted into the housing, a plurality of conductive contacts arranged on the housing for contacting with connecting terminals on the flat circuit device in the housing, and a shell member mounted on the housing and provided therein with a holding portion operative to hold the flat circuit device in the housing. A releasing portion extends from the shell member toward the outside thereof, and a connecting portion extends from the releasing portion in a direction perpendicular to a conductive contact arrangement and the holding portion extends from the connecting portion, so that a folded-back protrusion is constituted in a body in the shell member with the releasing, connecting and holding portions.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 19, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Kosuke Ozeki
  • Publication number: 20130059476
    Abstract: A simple structure capable of preventing a cam part of an actuator from coming out of position when the actuator is in an open position. The cam part 12a of the actuator 12 for rotating contacts 13 mounted inside an insulating housing 11 is provided with an engaging surface 12a2 which is a flat surface that faces cam lock protrusions 13a2 of second contact beams 13a when the actuator 12 is in the open position. Upon an external force or the like acting on the cam part 12a to come out of cam rotation recesses 13b3 when the actuator 12 is in the open position, the engaging surface 12a2 of the cam part 12a abuts on and makes locking engagement with the cam lock protrusions 13a2, so that the actuator 12 is prevented from coming out of position.
    Type: Application
    Filed: August 14, 2012
    Publication date: March 7, 2013
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Jin TATEISHI, Yoshinobu Shimada
  • Patent number: 8376762
    Abstract: An electrical connector comprising a housing provided on one of opposite end portions thereof with an opening through which an FPC is inserted into the housing, a plurality of conductive contacts arranged on the housing for coming into contact with signal connecting terminals on the FPC inserted in the housing, and a shell member mounted on the housing and provided therein with a holding portion operative to hold the FPC inserted in the housing, a releasing portion operative to release the FPC from holding by the holding portion and a connecting portion for connecting the releasing portion with the holding portion, wherein the releasing portion extends from the shell member, the connecting portion extends to be bent from the releasing portion, and the holding portion extends to be bent from the connecting portion, so that a U-shaped portion is constituted in the shell member with the releasing portion, the connecting portion and the holding portion.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: February 19, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Kosuke Ozeki
  • Publication number: 20130040505
    Abstract: An electrical connector in which a single connector is directly mated with a coupling projection part provided in a product chassis constituting an electronic device; contact parts of electrically-conductive contacts are brought into contact with both contact parts of a wiring pattern exposed from upper and lower both surfaces of the coupling projection part; electrical connection of the signal transmission medium is established with a simple configuration without intermediation of a conventionally-used circuit board or an electrical connector serving as a mating counterpart mounted on the circuit board; pressing force of the electrically-conductive contacts is cancelled out and approximately uniformly applied without unevenness; the protruding distance of the mating structure of the electrical connector is reduced to reduce the thickness thereof; and reversed mating is enabled to increase degree of freedom in the extending direction of a terminal part of the signal transmission medium.
    Type: Application
    Filed: February 1, 2011
    Publication date: February 14, 2013
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi Hirakawa
  • Patent number: 8371880
    Abstract: A signal transmission medium inserted in a connector main body portion, which can be held and released successfully with a simple configuration, is disclosed. A distal end portion of an elastically-displaceable cantilever-shaped locking arm member formed so as to be integral with a board connection leg portion (holddown) is provided with a locking portion engaged with a portion of the signal transmission medium inserted in the connector main body portion to hold the inserted state. The held state of the signal transmission medium is maintained by elastic action of the locking arm member extending in a relatively-elongated shape from a swinging fulcrum. Simultaneously, an unlocking-action force on the locking portion can be reduced, and an unlocking-operation force is stably received by the board connection leg portion (holddown) fixed to a printed circuit board so that improvement in strength is achieved.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 12, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Masao Ishimaru
  • Publication number: 20130012066
    Abstract: [Problem] To extremely simplify the configuration of an electrical connector by omitting a circuit board and an electrical connector, etc. of a mating counterpart. [Solution] A single plug connector 10 is directly mated with a wall part of a product chassis MF. In a mated state of the single plug connector 10, a contact part of a contact 12 is brought into contact with a contact part of a wiring pattern CP exposed from an inner-peripheral wall part of a mating hole MFa. Therefore, electrical connection of a signal transmission medium can be established by a simple configuration without the intermediation of a conventionally-used circuit board and an electrical connector serving as a mating counterpart mounted on the circuit board.
    Type: Application
    Filed: December 28, 2010
    Publication date: January 10, 2013
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi Hirakawa
  • Publication number: 20130005174
    Abstract: A signal transmission medium inserted into an insulating housing can be held and released in a favorable manner with a simple structure. A pair of lock release parts are arranged to face opposite each other at both outer ends of a signal transmission medium, this pair of lock release parts being integrally and continuously formed to release arms integrally extending from the insulating housing to be movable to approach and separate from each other, with a lock release link mechanism being provided for causing the locking portion to displace in an unlocking direction by moving the pair of lock release parts in directions approaching each other.
    Type: Application
    Filed: June 13, 2012
    Publication date: January 3, 2013
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Masao ISHIMARU
  • Patent number: 8342837
    Abstract: There are provided a first mold 2 and a second mold 1 that can be brought into and released from contact with the first mold 2. A substrate 70 provided in both the molds 1, 2 and mounted with electronic components is subjected to resin sealing and molding by filling with resin of cavities formed by both the molds 1, 2. The second mold 1 is placed on a base plate 9 so as to be capable of horizontally reciprocating, and has a cavity block 7 that can be brought into and released from contact with the first mold 2 and a mold clamping mechanism 16 that supports the cavity block 7 and that brings and releases the cavity block 7 into and from contact with the first mold 2 so as to perform mold clamping. On the base plate 9 is provided a horizontal actuation mechanism 11 for moving the second mold 1 to a facing position where the second mold 1 faces the first mold 2 and to a non-facing position where the second mold 1 has been moved sideways from the facing position.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: January 1, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Kenji Ogata, Shin Nagaoka
  • Publication number: 20120329300
    Abstract: An electrical connector including a housing having an opening through which a flat circuit device is inserted into the housing, conductive contacts arranged on the housing, a conductive shell provided with a holding member for engaging with the flat circuit device to hold the same, and a releasing member provided on the housing with a manipulatable portion and a pressing portion for engaging with the holding member, wherein the manipulatable portion is formed to be movable in a direction along which the conductive contacts are arranged and the pressing portion is operative to move for pressing the holding member so as to cause the same to disengage from the flat circuit device when the manipulatable portion is moved in the direction along which the conductive contacts are arranged under a condition wherein the holding member is put in engagement with the flat circuit device to hold the same.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 27, 2012
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Hiroharu IKARI
  • Patent number: 8337230
    Abstract: An electrical connector including a housing provided thereon with an opening through which a flat circuit device is inserted into the housing, a plurality of conductive contacts arranged on the housing, and a holding member attached to the housing to be operative to hold the flat circuit device inserted in the housing and then to release the flat circuit device from holding by the holding member, wherein the holding member has a base portion fixed to the housing and a movable arm portion extending from the base portion, and the movable arm portion is provided thereon with an engaging portion operative to be put in engagement with the flat circuit device inserted in the housing so as to hold the same and a releasing portion protruding from the movable arm portion to the outside of the housing and is operative to move for releasing the engaging portion from the engagement with the flat circuit device when the releasing portion is manipulated to be shifted in position.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: December 25, 2012
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Takaki Kurachi
  • Publication number: 20120322293
    Abstract: To prevent, with a simple structure, deformation such as a twist of an actuator at the time of moving operation and easily check the operation state of an actuator to easily and reliably establish an electrical connection, inclined surface parts are provided at both end portions in a longitudinal direction in end faces on a rotational radial outer side of the actuator pinching or freeing a signal transmission medium to approximately uniformly act an entire pressing force of an operator over a full length of the actuator. With this, a situation that the actuator is pressed as being twisted is eliminated to achieve an excellent action of pinching the signal transmission medium and an easy and reliable visual check of the state of rotation of the actuator.
    Type: Application
    Filed: August 2, 2011
    Publication date: December 20, 2012
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Yoshinobu Shimada, Masataka Muro
  • Patent number: 8317533
    Abstract: To allow a signal transmission medium inserted in a connector main body to be held and disengaged excellently with a simple structure, the structure is such that a lock member holding a signal transmission medium inserted in the connector main body is provided to a part of an elastically-displaceable lock arm member extending like a cantilever from a rocking fulcrum and disposed at one end of the connector main body on a rising side to excellently maintain a state of holding the signal transmission medium by the lock member with an elastic action of the lock arm member, a release operation from the lock member is easily performed with a relatively small operation force, and a load transmitted from the lock member to the lock arm member when the signal transmission medium is inserted or withdrawn is received at the end of the connector main body on the rising side to reduce direct load on a circuit wiring board side.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: November 27, 2012
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Masao Ishimaru
  • Patent number: 8317543
    Abstract: An electrical connector which comprises an insulated housing on which a first engaging portion is provided for engaging with a second engaging portion provided in a mating electrical connector, first contacts arranged in a predetermined direction on the insulated housing and operative to come into contact with second contacts provided in the mating electrical connector, a conductive shell for covering partially the insulated housing, and an aligning cover attached to the conductive shell and operative to cause end portions thereof in the predetermined direction to engage respectively with end portions in the predetermined direction of the mating electrical connector for aligning the insulated housing with the mating electrical connector when the first engaging portion is engaged with the second engaging portion, and with which the first engaging portion can be appropriately and smoothly put in engagement with the second engaging portion.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: November 27, 2012
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Tetsuya Tagawa, Hiroharu Ikari
  • Publication number: 20120295477
    Abstract: Coaxial connector comprising a signal contact member having a connecting terminal portion and a contacting terminal portion, a grounding contact member having an annular engaging portion for engaging with an outer contact member of a mating coaxial connector and a shell portion extending from the annular engaging portion to be connected with an outer conductor of a coaxial cable, and a housing for supporting the signal contact member and the grounding contact member. The connecting terminal portion of the signal contact member is positioned at the outside of the annular engaging portion of the grounding contact member to be connected with a core conductor of the coaxial cable and the contacting terminal portion of the signal contact member is positioned at the inside of the annular engaging portion of the grounding contact member for coming into contact with a central contact member of the mating coaxial connector.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Akio FUNAHASHI
  • Publication number: 20120289092
    Abstract: An electrical connector including a housing to be mounted on an outer surface of a main circuit board, conductive contacts arranged in the housing and an actuator operative to take selectively a first station for releasing each of the conductive contacts from press-contact with one of connecting terminals on a flat circuit device inserted in the housing and a second station for causing each of the conductive contacts to maintain the press-contact with the connecting terminal, wherein the actuator has a particular outer portion thereof which faces upward on the outer surface of the main circuit board when the actuator takes one of the first and second stations and faces toward a direction in parallel with the outer surface of the main circuit board when the actuator takes the other of the first and second stations.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 15, 2012
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Yoshinobu SHIMADA
  • Patent number: D673499
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: January 1, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Takeshi Hirakawa
  • Patent number: D674346
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: January 15, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Yoichi Hashimoto
  • Patent number: D680494
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 23, 2013
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Takeshi Hirakawa