Patents Assigned to Dai-Ichi Seiko Co., Ltd.
  • Publication number: 20190348781
    Abstract: A circuit board connecting device comprising an insulating housing, a plurality of conductive contacts arranged on the insulating housing, and a resilient shell member attached to the insulating housing, wherein the resilient shell member includes a strip-shaped portion surrounding partially a board-facing surface portion of the insulating housing so as to cause an inner surface portion thereof to come into resilient contact with an outer surface portion of a mate connecting device, a pair of bent projecting portions each elongating to be bent from an end portion of the strip-shaped portion for projecting in a direction remote from the insulating housing, and a pair of extending portions each extending further to be bent from an end portion of the bent projecting portion so as to be opposite to the strip-shaped portion, so that the whole of the strip-shaped portion, the bent projecting portions and the extending portions constitute a spring member.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 14, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Kenji YUFU
  • Publication number: 20190348800
    Abstract: An electrical cable connector comprising an insulating housing, a plurality of conductive contacts arranged on the insulating housing to be connected respectively with cables, and an outer shell member attached to the insulating housing, wherein the insulating housing is provided with a cable supporting portion reinforced with an inner shell member for supporting the cables connected respectively with the conductive contacts and the outer shell member includes a concealing portion for covering a portion of the insulating housing on which the conductive contacts are arranged, a strip-shaped portion for surrounding partially the insulating housing for coming into resilient contact with a mate electrical connector and a linking portion extending from the concealing portion to be linked with the inner shell member.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 14, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kenji YUFU, Takao YAMAUCHI
  • Publication number: 20190348784
    Abstract: An electrical cable connector comprising an insulating housing, a plurality of conductive contacts arranged on the insulating housing to be connected respectively with cables, and a resilient shell member attached to the insulating housing, wherein the resilient shell member includes a concealing portion for concealing a portion of the insulating housing on which the conductive contacts are arranged, a strip-shaped portion surrounding partially the insulating housing so as to cause an inner surface portion thereof to come into resilient contact with an outer surface portion of a mating connecting device, a pair of extended strip-shaped portions each extending to be bent from one of end portions of the strip-shaped portion so as to have a free end portion, and a pair of holding portions extending from the concealing portion for positioning respectively the extended strip-shaped portions from the outside thereof.
    Type: Application
    Filed: May 3, 2019
    Publication date: November 14, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kenji YUFU, Takao YAMAUCHI
  • Patent number: 10473917
    Abstract: A mirror with a reflective layer formed thereon is supported within a frame-shaped support by two U-shaped arms. A plate-like arm connects fixation points (Q1, Q2), and a plate-like arm connects fixation points (Q3, Q4). A pair of piezoelectric elements (E11, E12) disposed along a longitudinal axis (L1) on an upper surface of an outside bridge of the arm, and a single piezoelectric element (E20) disposed along the longitudinal axis (L2) on the upper surface of an inside bridge. Similarly, a pair of piezoelectric elements (E31, E32) disposed on an upper surface of an outside bridge of the arm, and a single piezoelectric element (E40) disposed on the upper surface of an inside bridge. When a positive drive signal is applied to the piezoelectric elements (E11, E20, E31, E40) and a negative drive signal is applied to the piezoelectric elements (E12, E32), the mirror is displaced efficiently.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: November 12, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kazuhiro Okada, Satoshi Era, Shinya Sakamoto, Yoshifumi Ikeda, Shogo Kurogi, Kenji Ogata
  • Publication number: 20190329424
    Abstract: A position correction device according to an embodiment includes a movable part and a pressing part. The movable part is capable of moving a holding part that holds a connection object back and forth in each of a second direction that is orthogonal to a first direction where the holding part is moved therein in order to connect the connection object to a target connector, and a rotational direction where the holding part is rotated therein around an axis along a third direction that is orthogonal to each of the first direction and the second direction as a center. The pressing part presses the movable part that moves in the second direction to move the movable part to a neutral position in the second direction and presses the movable part that moves in the rotational direction to move the movable part to a neutral position in the rotational direction.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 31, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Shogo MATSUO
  • Patent number: 10446982
    Abstract: An electrical connector includes a plug connector and a locking member. The plug connector includes a conductive outer conductor shell electrically connected to a contact of a mating connector, and the outer conductor shell includes a cylindrical fitting portion fitted to a ground contact member. An outer diameter of the fitting portion is configured to be enlarged when the fitting portion is attached to or removed from the ground contact member, and the locking member includes a regulation portion capable of regulating the enlargement of the fitting portion. A guide portion is configured to guide the movement of the regulation portion with respect to the fitting portion, as the regulation portion is moved between a regulation position and a standby position.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: October 15, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Yasuaki Fukumoto, Satoru Taguchi
  • Publication number: 20190305454
    Abstract: An electrical connector includes a plurality of conductive terminals, an insulating housing that holds the plurality of conductive terminals and that has an accommodating portion to accommodate a flexible printed circuit provided with a plurality of connection terminal portions electrically connected to the plurality of conductive terminals. A metallic reinforcing portion is located in an upper wall portion of a main body portion of the housing that partitions the accommodating portion.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Applicant: DAI-ICHI SEIKO CO.,LTD.
    Inventors: Yoshinobu SHIMADA, Hirotake KANEKO
  • Publication number: 20190305487
    Abstract: Electromagnetic shielding about both of electric connectors, which are in a mutually mated state, can be sufficiently carried out by a simple configuration. Shield wall portions composed of electrically-conductive members opposed to contact connecting portions (board connecting portions) of a plurality of contact members arranged in multipolar shapes are provided; electromagnetic shielding functions with respect to the contact connecting portions in the respective electric connectors are obtained well by the respective shield wall portions; and, when both of the electric connectors are mated with each other, the shield wall portions are configured to be in an inner/outer double disposition relation in which they are opposed to each other and efficiently block the gaps between the shield wall portions and wiring boards so that sufficient EMI measures can be expected.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 3, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Kosuke OZEKI
  • Patent number: 10424877
    Abstract: Electromagnetic shielding about both of electric connectors, which are in a mutually mated state, can be sufficiently carried out by a simple configuration. Shield wall portions composed of electrically-conductive members opposed to contact connecting portions (board connecting portions) of a plurality of contact members arranged in multipolar shapes are provided; electromagnetic shielding functions with respect to the contact connecting portions in the respective electric connectors are obtained well by the respective shield wall portions; and, when both of the electric connectors are mated with each other, the shield wall portions are configured to be in an inner/outer double disposition relation in which they are opposed to each other and efficiently block the gaps between the shield wall portions and wiring boards so that sufficient EMI measures can be expected.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: September 24, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Kosuke Ozeki
  • Patent number: 10418733
    Abstract: To be capable of easily avoiding lengthening and heightening with a simple configuration even in a case where relatively large electric power is supplied. Provided is a configuration in which the conductor resistance of a plurality of contact members 13 and 14 is reduced in accordance with an increment in thickness and energization allowable electric power is increased by one of more of the contact members 13 and 14 being formed thicker than the rest so that an increase in the size of an electric connector such as lengthening and heightening is prevented even in a case where the supply electric power with respect to the electric connector is large and the retention of a flat plate-shaped signal transmission medium F is enhanced by contact portions of the thickness-increased contact members 13 and 14 being pressure-welded to the flat plate-shaped signal transmission medium F.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: September 17, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Masao Ishimaru
  • Patent number: 10396509
    Abstract: To allow a fit-in state between electrical connectors to be firmly maintained, elastic arm-shaped members provided to a conductive shell member so as to elastically displace to a direction orthogonal to a fit-in direction of a mating connector are each provided with an engaging piece having a connector contact surface which the mating connector faces from the depth in the fit-in direction and a shell contact surface which a part of the conductive shell member faces from the front in the fit-in direction. When an external force is applied to the mating connector in a fit-in state to a removing direction opposite to the fit-in direction, the engaging piece is brought into a state of being interposed between the mating connector and the conductive shell member. This avoids a situation in which the engaging piece is removed from the mating connector to cause a lock release.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: August 27, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takao Yamauchi
  • Patent number: 10397685
    Abstract: An earphone (1) is provided that includes a first vibration plate (31) for vibration by a first piezoelectric element (32) and a cylindrically-shaped casing (2) for transmission of the vibration of the first vibration plate (31) to ear canal cartilage. The first vibration plate (31) is disposed inside the casing (2). The earphone (1) has a structure whereby an amount of sound leakage, which is due to transmission of the vibration of the first vibration plate (31) to the air, is low. The ear canal cartilage transmits sound to the eardrum of only one ear, thereby enabling localization of sound. The woofer (3) maintains sound pressure at low frequencies.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: August 27, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Kenji Ogata, Akihiko Hosaka, Yoshiyuki Watanabe
  • Patent number: 10389069
    Abstract: To shorten a contact member to a fit-in direction to allow a decrease size, a fixing piece 12c of a contact member 12 is arranged in a region Q where an electrode part 22a of a mating connector 20 slides over the contact member 12. Thus, the region Q where the electrode part 22a of the mating connector 20 slides over the contact member 12 and a region where the fixing piece 12c of the contact member 12 is arranged are in a state of overlapping each other in a direction of fitting in the mating connector 20, and the contact member 12 can be shortened to the direction of fitting in the mating connector 20.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: August 20, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takao Yamauchi
  • Patent number: 10389045
    Abstract: An electrical coaxial connector comprising a connector body including a signal contact member, a grounding contact member and a housing member for supporting the signal contact member and the grounding contact member, and a locking component made to be separate from the connector body for engaging detachably with the grounding contact member, wherein the locking component is provided thereon with a displaceable engaging portion which is operative to lock an annular engaging portion of the grounding contact member from the outside of the same at a position for closing partially a slit provided on the annular engaging portion when the locking component is caused to engagement with the grounding contact member, so that the annular engaging portion of the grounding contact member is prevented from being subjected to expanding deformation to widen the slit.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: August 20, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Kohei Nishiyama
  • Patent number: 10355382
    Abstract: By a simple configuration, contact members can be well retained with a housing in a mutually opposed state, and productivity can be improved. When the contact members in the mutually opposed state are to be attached to the housing, a contact retainer prepared by molding in advance is used by disposing the contact retainer in part of the contact opposed region. As a result, the contact members are stably retained in the mutually opposed state even in injection molding molds. Even in a case in which the contact members normally cannot be retained in the mutually opposed state in the injection molding molds, the housing and the contact members can be integrally molded by well retaining the contact members in the mutually opposed state by using the contact retainer and a contact retainer auxiliary and executing an injection molding process.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: July 16, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Tsukasa Sato
  • Publication number: 20190190208
    Abstract: A shell member that is ground-connected to a connected object is constituted by a first shell that faces the connected object and entirely covers a contact member and a second shell that faces the first shell in a part between a connecting object and the connected object. Each of the first and second shells is provided with ground contact points with a ground conducting path of the connecting object and a ground conducting path of the connected object, with a signal transmission path sandwiched between ground paths by the first and second shells and configured to achieve satisfactory electromagnetic shielding of the signal transmission path.
    Type: Application
    Filed: November 8, 2018
    Publication date: June 20, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Masataka MURO
  • Publication number: 20190190169
    Abstract: An electrical coaxial connector comprising a connector body including a signal contact member, a grounding contact member and a housing member for supporting the signal contact member and the grounding contact member, and a locking component made to be separate from the connector body for engaging detachably with the grounding contact member, wherein the locking component is provided thereon with a displaceable engaging portion which is operative to lock an annular engaging portion of the grounding contact member from the outside of the same at a position for closing partially a slit provided on the annular engaging portion when the locking component is caused to engagement with the grounding contact member, so that the annular engaging portion of the grounding contact member is prevented from being subjected to expanding deformation to widen the slit.
    Type: Application
    Filed: November 13, 2018
    Publication date: June 20, 2019
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Kohei NISHIYAMA
  • Patent number: D852751
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: July 2, 2019
    Assignee: Dai-ichi Seiko Co., Ltd
    Inventor: Tomoyuki Uchida
  • Patent number: D852752
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: July 2, 2019
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Tomoyuki Uchida
  • Patent number: D852753
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: July 2, 2019
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Koji Hanaki