Patents by Inventor Takeshi Hirakawa

Takeshi Hirakawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220045448
    Abstract: An electrical connector includes a housing, and a contact that is attached to the housing and is connected to a wiring substrate, wherein the contact includes a connection part that is connected to the wiring substrate, a holding part that is joined to the connection part and extends in a direction away from the wiring substrate, a joining part that is joined to the holding part through a folding part, extends in a direction closer to the wiring substrate, extends so as to be provided along a principal surface of the wiring substrate, and further extends in a direction away from the wiring substrate, and a contact part that is joined to the joining part and contacts a counterpart contact of a counterpart connector, and the joining part contacts the holding part.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Applicant: I-PEX Inc.
    Inventor: Takeshi HIRAKAWA
  • Patent number: 10985505
    Abstract: A connector is provided with a connector main body having conductive contacts and a housing holding the conductive contacts. The conductive contacts are exposed from the housing so as to be electrically connectable to a mating connector in a distal end portion of the connector main body and are exposed from the housing so as to be electrically connectable to a substrate in a rear end portion of the connector main body. The housing has positioning portions positioning the connector main body and the substrate relative to each other. The positioning portions are located closer to a center line of the connector main body than the conductive contacts when the connector main body is viewed in plan. The center line extends along a direction from the distal end portion of the connector main body toward the rear end portion.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: April 20, 2021
    Inventor: Takeshi Hirakawa
  • Patent number: 10931065
    Abstract: A connector includes a connector main body having a plate-shaped conductor, conductive contacts, and a housing holding the plate-shaped conductor and the conductive contacts so as to remain insulated from each other and a metallic casing forming an exterior of a pen-type electronic device and having a through hole configured such that a mating connector is insertable. The conductive contacts form parts of an electric circuit different from the plate-shaped conductor in the pen-type electronic device. An end portion of the plate-shaped conductor is fixed to an inner wall of the casing forming the through hole such that a distal end portion of the connector main body electrically connected to the mating connector is located in the through hole.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: February 23, 2021
    Inventors: Takeshi Hirakawa, Naoto Onoda
  • Patent number: 10897097
    Abstract: For miniaturization in a connector width direction in a configuration in which a shield shell is arranged at a position outside a contact member, a configuration is adopted in which when a ground connection section protrudes outward in the connector width direction from a first shield shell arranged outside the connector width direction of a first contact member in a first connector, an inner end surface of the ground connection section at the time of fitting between both the connectors is arranged within a range of a plate width of a second shield shell, to arrange the first shield shell inside the connector width direction of the ground connection section and arrange a second shield shell arranged outside the connector width direction of the first shield shell more inside the connector than a conventional example at the time of fitting both the connectors.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: January 19, 2021
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi Hirakawa
  • Publication number: 20200220287
    Abstract: To make it possible to easily achieve miniaturization in a connector width direction in a configuration in which a shield shell is arranged at a position outside a contact member, a configuration is adopted in which when a ground connection section protrudes outward in the connector width direction from a first shield shell arranged outside in the connector width direction of a first contact member in a first connector, an inner end surface of the ground connection section at the time of fitting between both the connectors is arranged within a range of a plate width of a second shield shell, to arrange the first shield shell inside in the connector width direction of the ground connection section and arrange a second shield shell arranged outside in the connector width direction of the first shield shell more inside the connector than in the conventional example at the time of fitting both the connectors.
    Type: Application
    Filed: August 29, 2018
    Publication date: July 9, 2020
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi HIRAKAWA
  • Patent number: 10700458
    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: Grant
    Filed: September 5, 2017
    Date of Patent: June 30, 2020
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takeshi Hirakawa, Tadamichi Yayoshi, Takahiro Fukushima
  • Publication number: 20200161812
    Abstract: A connector includes a connector main body having a plate-shaped conductor, conductive contacts, and a housing holding the plate-shaped conductor and the conductive contacts so as to remain insulated from each other and a metallic casing forming an exterior of a pen-type electronic device and having a through hole configured such that a mating connector is insertable. The conductive contacts form parts of an electric circuit different from the plate-shaped conductor in the pen-type electronic device. An end portion of the plate-shaped conductor is fixed to an inner wall of the casing forming the through hole such that a distal end portion of the connector main body electrically connected to the mating connector is located in the through hole.
    Type: Application
    Filed: April 11, 2018
    Publication date: May 21, 2020
    Applicants: DAI-ICHI SEIKO CO.,LTD., Wacom Co., Ltd.
    Inventors: Takeshi HIRAKAWA, Naoto ONODA
  • Publication number: 20200161813
    Abstract: A connector is provided with a connector main body having conductive contacts and a housing holding the conductive contacts. The conductive contacts are exposed from the housing so as to be electrically connectable to a mating connector in a distal end portion of the connector main body and are exposed from the housing so as to be electrically connectable to a substrate in a rear end portion of the connector main body. The housing has positioning portions positioning the connector main body and the substrate relative to each other. The positioning portions are located closer to a center line of the connector main body than the conductive contacts when the connector main body is viewed in plan. The center line extends along a direction from the distal end portion of the connector main body toward the rear end portion.
    Type: Application
    Filed: April 11, 2018
    Publication date: May 21, 2020
    Applicant: DAI-ICHI SEIKO CO.,LTD.
    Inventor: Takeshi HIRAKAWA
  • Patent number: 10230185
    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. The regulating members also form latch members that act to separate the connectors towards a placed or initial state (e.g., FIGS.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 12, 2019
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi Hirakawa
  • Publication number: 20180226736
    Abstract: A electrical connector includes a receptacle connector electrically connected to a wiring substrate and a locking member mounted on the receptacle connector to hold a fit state with respect to a plug connector corresponding to a counterpart connector. The receptacle connector includes a connector engaging portion that is engaged with the locking member, and the locking member includes a main body interposing the plug connector fit to the receptacle connector between the main body and the receptacle connector at a time of being mounted on the receptacle connector. A lock engaging portion is engaged with the connector engaging portion in a state in which the plug connector is interposed between the receptacle connector and the main body.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 9, 2018
    Applicant: DAI-ICHI SEIKO CO.,LTD.
    Inventor: Takeshi HIRAKAWA
  • 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: 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
  • Patent number: 9601849
    Abstract: A smooth mating operation is enabled by a simple configuration in a state in which electric connectors are easily and reliably positioned. A plug-side mating guide member made of metal projecting to an outer side from a wiring substrate is provided with guide surfaces, which contact part of a counterpart connector and slide so as to carry out positioning of a mating operation. Apart from which the plug-side mating guide member projects from the wiring substrate is directly or indirectly checked visually. As a result, the mating operation can be carried out while approximating the mutual mating positional relation of both of the electric connectors, and the mating positional relation is regulated to a predetermined state by guiding actions of the guide surfaces of the plug-side mating guide member so that the mutual mating operation of the electric connectors is easily and precisely carried out.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 21, 2017
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi Hirakawa
  • Publication number: 20160141783
    Abstract: A smooth mating operation is enabled by a simple configuration in a state in which electric connectors are easily and reliably positioned. A plug-side mating guide member made of metal projecting to an outer side from a wiring substrate is provided with guide surfaces, which contact part of a counterpart connector and slide so as to carry out positioning of a mating operation. Apart from which the plug-side mating guide member projects from the wiring substrate is directly or indirectly checked visually. As a result, the mating operation can be carried out while approximating the mutual mating positional relation of both of the electric connectors, and the mating positional relation is regulated to a predetermined state by guiding actions of the guide surfaces of the plug-side mating guide member so that the mutual mating operation of the electric connectors is easily and precisely carried out.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 19, 2016
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi HIRAKAWA
  • Patent number: 9257761
    Abstract: An electrical coaxial connector comprising a signal-joining contacting conductor and a grounding contacting conductor each supported by an insulating base member, wherein a body portion of the signal-joining contacting conductor has a press-contacting part with a contacting protrusion for contacting with a signal-joining conductor in a mating connector and a first base part in such a manner that a measure of thickness of the press-contacting part including the contacting protrusion is not more than the maximum measure of thickness of the first base part, and an annular portion of the grounding contacting conductor has an engaging part with an engaging protrusion for engaging with a grounding conductor in the mating connector and a second base part in such a manner that a measure of thickness of the engaging part including the engaging protrusion is not more than to the maximum measure of thickness of the second base part.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: February 9, 2016
    Assignee: Dai-ichi Seiko Co., Ltd.
    Inventor: Takeshi Hirakawa
  • Patent number: 9203196
    Abstract: An electrical coaxial connector comprising a signal-joining contacting conductor having a body portion to be connected with a signal joining conductor of a mating coaxial connector, a grounding contacting conductor having an annular portion placed around the body portion of the signal joining contacting conductor to be connected with a grounding conductor of the mating coaxial connector, and an insulating base member for supporting the signal-joining contacting conductor and the grounding contacting conductor to be isolated from each other, wherein the body portion of the signal-joining contacting conductor is formed into a cylindrical shape with a slit extending to surround an imaginary central axis of the cylindrical shape of the body portion and provided with a base part and an engaging part opposite to each other with the slit between and connected with each other by a connecting part of the body portion at which the slit is not formed.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: December 1, 2015
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi Hirakawa
  • Publication number: 20150104974
    Abstract: An electrical coaxial connector comprising a signal-joining contacting conductor and a grounding contacting conductor each supported by an insulating base member, wherein a body portion of the signal-joining contacting conductor has a press-contacting part with a contacting protrusion for contacting with a signal-joining conductor in a mating connector and a first base part in such a manner that a measure of thickness of the press-contacting part including the contacting protrusion is not more than the maximum measure of thickness of the first base part, and an annular portion of the grounding contacting conductor has an engaging part with an engaging protrusion for engaging with a grounding conductor in the mating connector and a second base part in such a manner that a measure of thickness of the engaging part including the engaging protrusion is not more than to the maximum measure of thickness of the second base part.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 16, 2015
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi HIRAKAWA
  • Patent number: 8986043
    Abstract: With a simple configuration, plastic deformation of contacts can be prevented while avoiding increase in size, and occurrence of failure in electrical connection due to dust can be well prevented. In an elastic beam-like member of a first-side contact extending like a cantilever in an insulating housing, a bent extending part which substantially increases the span length of the elastic beam-like member is formed to be bent to have a curved shape at a root part serving as a part coupled to a fixing base part. A through hole is formed in a region including at least part of the bent extending part to ensure flexibility while enhancing elasticity of the contact, thereby preventing permanent deformation of the contact. Meanwhile, dust which has entered the equipment is caused to fall through the through hole, thereby ensuring electrical conductivity well.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 24, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takeshi Hirakawa, Yoichi Hashimoto
  • Publication number: 20150072556
    Abstract: An electrical coaxial connector comprising a signal-joining contacting conductor having a body portion to be connected with a signal joining conductor of a mating coaxial connector, a grounding contacting conductor having an annular portion placed around the body portion of the signal joining contacting conductor to be connected with a grounding conductor of the mating coaxial connector, and an insulating base member for supporting the signal-joining contacting conductor and the grounding contacting conductor to be isolated from each other, wherein the body portion of the signal-joining contacting conductor is formed into a cylindrical shape with a slit extending to surround an imaginary central axis of the cylindrical shape of the body portion and provided with a base part and an engaging part opposite to each other with the slit between and connected with each other by a connecting part of the body portion at which the slit is not formed.
    Type: Application
    Filed: August 14, 2014
    Publication date: March 12, 2015
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventor: Takeshi HIRAKAWA
  • Patent number: 8968005
    Abstract: A circuit-terminal connecting device comprising a first connector having a first housing fixed to a main circuit board and first contacts supported by the first housing to be connected with first circuit-terminals provided on the main circuit board and a second connector having a second housing attached to a flat circuit member and second contacts supported by the second housing to be connected with second circuit-terminals provided on the flat circuit member. The first housing of the first connector fits into a hole formed in the second housing of the second connector so as to create an electrical piling connection between the main circuit board and the flat circuit member wherein the flat circuit member is laid on top of the main circuit board and the first circuit-terminals are electrically connected with the second circuit-terminals through the first and second connectors.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventor: Takeshi Hirakawa