Patents Assigned to Dai-Ichi Seiko Co., Ltd.
  • Patent number: 10021473
    Abstract: A digital speaker (1) is provided that is equipped with a piezoelectric element (4) including n electrodes (51, 52, 53) spaced apart from one another. Sound pressure is adjusted according to the surface area of the electrodes (51, 52, 53), and all the electrodes (51, 52, 53) can be driven by the same voltage. A speaker system is provided that uses the digital speaker (1) as a tweeter (11), or as all the speakers including a woofer (13). By this speaker system, earphones (8) are provided that are miniaturized and have high sound quality.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 10, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kenji Ogata, Akihiko Hosaka, Yoshiyuki Watanabe
  • Patent number: 10014620
    Abstract: A connector includes an outer housing including an engagement catch, an inner housing and a sliding member. The inner housing includes an engagement latch, and a pair of locking arms each provided with the engagement latch. The inner housing includes a slide channel having the pair of locking arms disposed at both sides. The sliding member includes a pair of latching arms each provided with a latch. When the first housing and the second housing are engaged with each other, the first housing and the second housing allow the sliding member to pass through the slide channel, and when the sliding member slides the slide channel, the pair of latching arms are deflected so as to decrease a gap therebetween by depressions from the respective locking arms.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: July 3, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Jun Mukunoki, Takuya Takeda
  • Publication number: 20180175525
    Abstract: A connector device includes a first connector and a second connector. A first regulating member attached to the first insulating housing of the first connector and a second regulating member attached to the second insulating housing of the second connector include projecting portions, respectively. A first projecting portion of either one of the first and second regulating members provides a second projecting portion of the other regulating member with a first elastic force acting in a first direction in which the first and second insulating housings separate from each other. Additionally, the first projecting portion provides the second projecting portion with a second elastic force acting in a second direction in which the first and second insulating housings move toward each other.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 21, 2018
    Applicant: DAI-ICHI SEIKO CO.,LTD.
    Inventor: Takeshi Hirakawa
  • Publication number: 20180166816
    Abstract: An electrical connector including a housing, first and second conductive contacts arranged on the housing, and an actuator provided to be rotatable for taking up first and second stations selectively and to have a pressing portion for pressing down a flat circuit device put partially in the housing to contacting portions of the first and second conductive contacts, wherein the actuator has an engaging portion and a projecting portion, the first conductive contact has a supporting portion for engaging with the engaging portion of the actuator so as to support the actuator, and the second conductive contact has a stopper portion for engaging with the projecting portion of the actuator so as to prevent the projecting portion from shifting in a direction opposite to an insertion direction along which the flat circuit device is inserted into the housing to be put partially in the same.
    Type: Application
    Filed: November 2, 2017
    Publication date: June 14, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Masatoshi TAKEMOTO
  • Publication number: 20180166813
    Abstract: For easy removal of a flat-plate-shaped signal transmission medium while reduction in height and size is achieved with a simple structure, a structure is adopted for an electric connector as follows. That is, a release operating part of a lock releasing member which causes a lock member in an engaged state to make a transition to a released state is arranged along an insertion opening. The release operating part and a release acting part are arranged in opposite regions in a radius direction of rotation of a support shaft part. The release operating part can make reciprocating rotations between an initial position away from the insertion opening and an acting position close to the insertion opening. Thus, when a flat-plate-shaped signal transmission medium is removed, the flat-plate-shaped signal transmission medium can be held while the engaged state of the lock member with respect to the flat-plate-shaped signal transmission medium is released by one hand of an operator.
    Type: Application
    Filed: November 3, 2017
    Publication date: June 14, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Masataka MURO
  • Patent number: 9997864
    Abstract: A plug connector includes: a ground contact conductor; an insulating housing; and a signal contact conductor. The ground contact conductor includes: a cylindrical main body having a slit that extends in an extending direction thereof; a pair of arms protruding from respective edges forming the slit of the main body in a radially outward direction of the main body; and fixing portions configured to fasten around the pair of arms from the exterior. Each fixing portion is provided with a protrusion protruding toward the corresponding arm and positioned at the center of the fixing portion in a protruding direction of the arms. In a state in which the arms are fastened with the fixing portions, the protrusions are in contact with the arms, and the arms and the fixing portions are separated from each other by the presence of the protrusions.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: June 12, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Yoichi Hashimoto
  • Publication number: 20180139527
    Abstract: A digital speaker (1) is provided that is equipped with a piezoelectric element (4) including n electrodes (51, 52, 53) spaced apart from one another. Sound pressure is adjusted according to the surface area of the electrodes (51, 52, 53), and all the electrodes (51, 52, 53) can be driven by the same voltage. A speaker system is provided that uses the digital speaker (1) as a tweeter (11), or as all the speakers including a woofer (13). By this speaker system, earphones (8) are provided that are miniaturized and have high sound quality.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 17, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kenji Ogata, Akihiko Hosaka, Yoshiyuki Watanabe
  • Patent number: 9966681
    Abstract: While efficient assembly performance of an electrical connector is obtained, good operability can be also obtained by a simple configuration. Good shielding performance with respect to transmission paths are configured to be obtained by a simple configuration in which movement of an actuator causes both shield shells to contact each other by covering at least part of outer surfaces of an insulating housing and the actuator by the shield shells consisting of electrically-conductive metal members, causing the actuator-side shield shell moved to an action position to contact the insulating-housing-side shield shell, and continuously covering the transmission paths, which are from a signal transmission medium to a printed wiring board through electrically-conductive contact members.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: May 8, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takaki Kurachi
  • Publication number: 20180102616
    Abstract: A coaxial cable connector comprises a signal contact member having an inner conductor connecting portion, a grounding contact member, and an insulating housing for supporting the signal contact member and the grounding contact member in a condition of mutual isolation, wherein the insulating housing is provided with first and second holes opposite to each other across the inner conductor connecting portion of the signal contact member with which an inner conductor of a coaxial cable is in contact, the first hole is operative to allow an ultrasonic vibration horn to be put into the first hole for contacting with the inner conductor of the coaxial cable and applying ultrasonic vibrations to the same and the second hole is operative to allow an anvil to be put into the second hole for coming into contact with the inner conductor connecting portion of the signal contact member.
    Type: Application
    Filed: August 17, 2017
    Publication date: April 12, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Yoichi HASHIMOTO, Kenichi YOTSUTANI
  • Publication number: 20180102598
    Abstract: A coaxial cable connector comprises a signal contact member having an inner conductor connecting portion, a grounding contact member, and an insulating housing for supporting the signal contact member and the grounding contact member in a condition of mutual isolation, wherein the insulating housing is provided with a concavity which has a bottom on which the inner conductor connecting portion of the signal contact member is placed and an opening through which the inner conductor of the coaxial cable is caused to come into contact with the inner conductor connecting portion of the signal contact member placed on the bottom of the concavity and is operative to allow an ultrasonic vibration horn to be put into the concavity through the opening of the concavity for applying ultrasonic vibrations to the inner conductor of the coaxial cable put in contact with the inner conductor connecting portion of the signal contact member.
    Type: Application
    Filed: August 17, 2017
    Publication date: April 12, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Yoichi HASHIMOTO, Kenichi YOTSUTANI
  • Patent number: 9941646
    Abstract: A coaxial cable connector comprises a signal contact member having an inner conductor connecting portion, a grounding contact member, and an insulating housing for supporting the signal contact member and the grounding contact member in a condition of mutual isolation, wherein the insulating housing is provided with first and second holes opposite to each other across the inner conductor connecting portion of the signal contact member with which an inner conductor of a coaxial cable is in contact, the first hole is operative to allow an ultrasonic vibration horn to be put into the first hole for contacting with the inner conductor of the coaxial cable and applying ultrasonic vibrations to the same and the second hole is operative to allow an anvil to be put into the second hole for coming into contact with the inner conductor connecting portion of the signal contact member.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: April 10, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Yoichi Hashimoto, Kenichi Yotsutani
  • Patent number: 9941606
    Abstract: A coaxial cable connector comprises a signal contact member having an inner conductor connecting portion, a grounding contact member, and an insulating housing for supporting the signal contact member and the grounding contact member in a condition of mutual isolation, wherein the insulating housing is provided with a concavity which has a bottom on which the inner conductor connecting portion of the signal contact member is placed and an opening through which the inner conductor of the coaxial cable is caused to come into contact with the inner conductor connecting portion of the signal contact member placed on the bottom of the concavity and is operative to allow an ultrasonic vibration horn to be put into the concavity through the opening of the concavity for applying ultrasonic vibrations to the inner conductor of the coaxial cable put in contact with the inner conductor connecting portion of the signal contact member.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: April 10, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Yoichi Hashimoto, Kenichi Yotsutani
  • Patent number: 9935396
    Abstract: A connector includes an outer housing, an inner housing to be engaged with the outer housing, and a sliding member. The sliding member includes a first protrusion formed at the leading end part (+Y side) of a first support arm and protruding inwardly (?X-axis direction) that is at a main-arm side, and a second protrusion formed at the leading end part (+Y side) of a second support arm and protruding inwardly (+X-axis direction) that is at the main-arm side.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: April 3, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Hiroyuki Kurita
  • Publication number: 20180069331
    Abstract: A receptacle connector includes a receptacle housing including a housing portion and receptacle terminals connected to plug terminals. The housing portion includes a first principal inner wall face, a second principal inner wall face, and a first-end inner wall face. At least a part of the first-end inner wall face is first receptacle guide faces having a gap width in a Y-axis direction gradually decreasing. The first receptacle guide face guides a plug connector such that the direction of an axial line of the plug connector is lined up in the direction of an axial line of the housing portion by regulating movement of the plug connector.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 8, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takeshi HIRAKAWA, Tadamichi YAYOSHI, Takahiro FUKUSHIMA
  • Publication number: 20180069335
    Abstract: A plug connector includes: a ground contact conductor; an insulating housing; and a signal contact conductor. The ground contact conductor includes: a cylindrical main body having a slit that extends in an extending direction thereof; a pair of arms protruding from respective edges forming the slit of the main body in a radially outward direction of the main body; and fixing portions configured to fasten around the pair of arms from the external. Each fixing portion is provided with a protrusion protruding toward the corresponding arm and positioned at the center of the fixing portion in a protruding direction of the arms. In a state in which the arms are fastened with the fixing portions, the protrusions are contact with the arms, and the arms and the fixing portions are separated from each other by presence of the protrusions.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 8, 2018
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Yoichi HASHIMOTO
  • Patent number: 9905955
    Abstract: The terminal comprises a conductive contact plate, a conductive body, an extended part, and a lance. The conductive contact plate is elastic and makes contact with a counterpart terminal. The conductive body supports the conductive contact plate and comprises a side plate. The extended part comprises a folded part extending from the +Z-side end of the side plate and folded outward from the conductive body and an overlapped part extending from the leading end of the folded part and overlapping with the side plate. The lance is a member protruding from the overlapped part and having the shape of a cantilever beam.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: February 27, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Hiroyuki Kurita, Shuji Touno
  • Patent number: 9893464
    Abstract: A connector includes an outer housing, an inner housing provided with an engagement latch, a slide channel, and rails each being a groove, and a sliding member provided with support arms engaged with the respective rails, and a protrusion to latch the engagement latch. The slide channel is formed with a slide surface extending along the rail. The support arms each include a lower surface facing the slide surface, and an upper surface inclined relative to the slide surface. The groove forming the rail is formed as a recess including a bottom surface, a first side surface, and a second side surface. The second side surface faces the upper surface of the support arm, and is formed at an inclination angle corresponding to that of the upper surface.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: February 13, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Jun Mukunoki, Takuya Takeda
  • Patent number: 9893448
    Abstract: The contact pressure of a contact member with respect to a connection target can be prevented well from being reduced by a simple configuration. An electrically-conductive shell covering a surface of an insulating housing opposed to a surface facing a wiring board is provided with an intermediate connecting portion extended from a position in the vicinity of a fixed base portion of the contact member toward the wiring board, and the intermediate connecting portion is joined with the wiring board. By virtue of this, deformation such as warpage of the insulating housing and the electrically-conductive shell upon insertion of the connection target is suppressed by retaining force of the intermediate connecting portion, and reduction in the contact pressure of the contact member with respect to the connection target is configured to be prevented.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: February 13, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Hiroki Mashima, Tomohiro Ogino
  • Patent number: 9876289
    Abstract: A terminal metal fitting, includes: a first terminal extended in a first direction on a first plane; a second terminal extended in a second direction on the first plane; a first flat plate part of a flat plate type, the first flat plate part being contacted with the first terminal, and having a first broad width face parallel to the first plane; a second flat plate part of a flat plate type, the second flat plate part being contacted with the second terminal, and having a second broad width face parallel to the first plane; a first articulated part of a flat plate type, the first articulated part being contacted with the first flat plate part in the first direction, and having a third broad width face parallel to a second plane including a third direction perpendicular to the first plane, and the first direction; a second articulated part of a flat plate type, the second articulated part being contacted with the second flat plate part in the second direction, and having a fourth broad width face parallel to a
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 23, 2018
    Assignees: DAI-ICHI SEIKO CO., LTD., KOITO MANUFACTURING CO., LTD.
    Inventors: Takayoshi Endo, Takehiko Osuga, Masaya Muta, Shigehiko Kazaoka, Kohei Yamaguchi
  • Patent number: D811344
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: February 27, 2018
    Assignee: DAI-ICHI SEIKO CO., LTD
    Inventor: Kosuke Ozeki