Patents by Inventor Yosuke Takai

Yosuke Takai 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).

  • Patent number: 11243363
    Abstract: In a transceiver module, when one end portion of a module board (18) is inserted and connected to a concave portion (16R) of a plug connector (16), a projection portion (16PP) formed on the periphery of the concave portion (16R) of the plug connector (16) is fitted into a notch portion (18PH) as one end surface of the module board (18) comes into contact with an inner peripheral surface that forms the concave portion (16R).
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: February 8, 2022
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke Takai, Toshiyasu Ito
  • Patent number: 11239589
    Abstract: A host connector includes a connector insulator having a slot allowing detachable insertion of a plug connector of a module, a first contact terminal group including contact terminals arranged inside the connector insulator and each brought into contact with a contact pad on one side at a connection end of the plug connector, and a second contact terminal group including contact terminals each brought into contact with a contact pad on another side opposed to the aforementioned contact pad. The first contact terminal group includes grounding sub-contact terminals arranged inside slits of the connector insulator, grounding main contact terminals supporting the grounding sub-contact terminals, and signal contact terminals. Contact portions of each grounding main contact terminal and of each signal contact terminal having the same shape are arranged on a common straight line, and the signal contact terminals are disposed between the grounding main contact terminals.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: February 1, 2022
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke Takai, Toshiyasu Ito
  • Patent number: 11199670
    Abstract: A length of a protection wall, which is greater than a length of projection of a connecting end portion of a plug connector from opening end portions of an upper case as well as a lower case of an optical module, is set to be smaller than an interval between a contact surface of each of lower stopper pieces of a receptacle cage to come into contact with an end surface of a side wall as well as an end surface of an end surface of the lower case and an opening end surface of a slot of a host connector.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: December 14, 2021
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke Takai, Toshiyasu Ito
  • Publication number: 20210257765
    Abstract: According to an embodiment, an LGA socket includes a center substrate, first and second insulator and a plurality of pairs of contacts. The center substrate is configured by a multi-layer structure including a ground layer and a plurality of through holes formed through the center substrate. The first insulator is arranged around the plurality of through holes on an upper surface of the center substrate. The second insulator is arranged around the plurality of through holes on a lower surface of the center substrate. The plurality of pairs of contacts are inserted into the through holes from an upper side and from a lower side of the through holes and are soldered via the through holes to be electrically connected to each other.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 19, 2021
    Inventors: Yoshiya YAMADA, Koji KIKUCHI, Toshiyasu ITO, Yosuke TAKAI
  • Publication number: 20210184383
    Abstract: According to an embodiment of the present disclosure, a connector for high-speed transmission to be fitted with an external counterpart connector includes a housing and a plurality of terminals. The housing has at least one or more slots. The plurality of terminals includes ground terminals and signal terminals are arranged in the slot along a first direction orthogonal to a fitting direction of the connector. Partition walls are provided between adjacent terminals in the slot, and a height of the partition walls between the ground terminals and the signal terminals in the fitting direction is lower than a height of other partition walls in the fitting direction.
    Type: Application
    Filed: December 9, 2020
    Publication date: June 17, 2021
    Inventors: Toshiyasu ITO, Yosuke TAKAI, Taichi ENJOJI
  • Publication number: 20210075163
    Abstract: A group of contact pads (20EB) formed on a lower surface (20B) at a connection end of a board portion of an optical module board (20) includes, in order from the endmost end, a contact pad (20B1) conducting to a ground line (G), contact pads (20B2) and (20B3) conducting to transmission-side high-speed signal lines (S), a contact pad (20B4) conducting to the ground line (G), contact pads (20B5, 20B6, and 20B7) conducting to low-speed signal lines (S), a contact pad (20B8) conducting to the ground line (G), contact pads (20B9 and 20B10) conducting to receiving-side high-speed signal lines (S), and a contact pad (20B11) conducting to the ground line (G).
    Type: Application
    Filed: December 14, 2017
    Publication date: March 11, 2021
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke TAKAI, Toshiyasu ITO
  • Patent number: 10935414
    Abstract: A liquid level indicating device includes a moving member which is arranged in a liquid tank storing a cooling liquid and moves vertically in conjunction with variation in a liquid level of the cooling liquid, a string member having one end portion connected to the moving member, the string member being configured to be bendable and non-extendable in a longitudinal direction, an indicator connected to the other end portion of the string member and which indicates a height position of the moving member as a remaining amount of the cooling liquid by operating in conjunction with movement of the moving member through the string member, and a tube member which is configured to be bendable and non-extendable in the longitudinal direction, has the string member passed therethrough, and connects the liquid tank and the indicator.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 2, 2021
    Assignee: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORP
    Inventors: Hiromu Shiota, Shota Ikeda, Midori Yamashita, Yosuke Takai, Kazuaki Ito
  • Publication number: 20210055488
    Abstract: In a transceiver module, when one end portion of a module board (18) is inserted and connected to a concave portion (16R) of a plug connector (16), a projection portion (16PP) formed on the periphery of the concave portion (16R) of the plug connector (16) is fitted into a notch portion (18PH) as one end surface of the module board (18) comes into contact with an inner peripheral surface that forms the concave portion (16R).
    Type: Application
    Filed: October 26, 2020
    Publication date: February 25, 2021
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke TAKAI, Toshiyasu ITO
  • Patent number: 10859777
    Abstract: In a transceiver module, when one end portion of a module board (18) is inserted and connected to a concave portion (16R) of a plug connector (16), a projection portion (16PP) formed on the periphery of the concave portion (16R) of the plug connector (16) is fitted into a notch portion (18PH) as one end surface of the module board (18) comes into contact with an inner peripheral surface that forms the concave portion (16R).
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: December 8, 2020
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke Takai, Toshiyasu Ito
  • Publication number: 20200358217
    Abstract: A host connector includes a connector insulator having a slot allowing detachable insertion of a plug connector of a module, a first contact terminal group including contact terminals arranged inside the connector insulator and each brought into contact with a contact pad on one side at a connection end of the plug connector, and a second contact terminal group including contact terminals each brought into contact with a contact pad on another side opposed to the aforementioned contact pad. The first contact terminal group includes grounding sub-contact terminals arranged inside slits of the connector insulator, grounding main contact terminals supporting the grounding sub-contact terminals, and signal contact terminals. Contact portions of each grounding main contact terminal and of each signal contact terminal having the same shape are arranged on a common straight line, and the signal contact terminals are disposed between the grounding main contact terminals.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 12, 2020
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke TAKAI, Toshiyasu ITO
  • Publication number: 20200142143
    Abstract: In a transceiver module, when one end portion of a module board (18) is inserted and connected to a concave portion (16R) of a plug connector (16), a projection portion (16PP) formed on the periphery of the concave portion (16R) of the plug connector (16) is fitted into a notch portion (18PH) as one end surface of the module board (18) comes into contact with an inner peripheral surface that forms the concave portion (16R).
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke TAKAI, Toshiyasu ITO
  • Publication number: 20190285817
    Abstract: A length of a protection wall, which is greater than a length of projection of a connecting end portion of a plug connector from opening end portions of an upper case as well as a lower case of an optical module, is set to be smaller than an interval between a contact surface of each of lower stopper pieces of a receptacle cage to come into contact with an end surface of a side wall as well as an end surface of an end surface of the lower case and an opening end surface of a slot of a host connector.
    Type: Application
    Filed: October 3, 2018
    Publication date: September 19, 2019
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke TAKAI, Toshiyasu ITO
  • Patent number: 10321607
    Abstract: When an optical module is inserted into a compartment of a receptacle cage in a state where a heatsink is detached from the receptacle cage, a tip end portion of a protection wall portion of the optical module comes into contact with end portions of guide pieces of a guide plate even if the optical module is inserted with the protection wall portion being lifted up, and the tip end portion of the protection wall portion is thereby pushed down and guided to a clearance below the guide pieces.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 11, 2019
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Toshiyasu Ito, Shigeru Sato, Yosuke Takai
  • Publication number: 20190120683
    Abstract: A liquid level indicating device includes a moving member which is arranged in a liquid tank storing a cooling liquid and moves vertically in conjunction with variation in a liquid level of the cooling liquid, a string member having one end portion connected to the moving member, the string member being configured to be bendable and non-extendable in a longitudinal direction, an indicator connected to the other end portion of the string member and which indicates a height position of the moving member as a remaining amount of the cooling liquid by operating in conjunction with movement of the moving member through the string member, and a tube member which is configured to be bendable and non-extendable in the longitudinal direction, has the string member passed therethrough, and connects the liquid tank and the indicator.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 25, 2019
    Applicant: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORP
    Inventors: Hiromu SHIOTA, Shota IKEDA, Midori YAMASHITA, Yosuke TAKAI, Kazuaki ITO
  • Publication number: 20180164519
    Abstract: In a transceiver module, when one end portion of a module board (18) is inserted and connected to a concave portion (16R) of a plug connector (16), a projection portion (16PP) formed on the periphery of the concave portion (16R) of the plug connector (16) is fitted into a notch portion (18PH) as one end surface of the module board (18) comes into contact with an inner peripheral surface that forms the concave portion (16R).
    Type: Application
    Filed: June 8, 2016
    Publication date: June 14, 2018
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yosuke TAKAI, Toshiyasu ITO
  • Patent number: 9930781
    Abstract: In a receptacle assembly, a module is guided by a guide rail and held inside an opening of a printed wiring board when a plug connector of the module is connected to a host connector. The receptacle assembly includes a guide member provided on the periphery of the opening of the wiring board and configured to form a module accommodation portion to detachably accommodate the module comprising a module board and to guide the module, a connector unit provided on the wiring board and configured to electrically connect the module board of the module to the wiring board, a first EMI gasket sealing a gap between a lower end portion of a connector cover covering the connector unit and the wiring board, and a second EMI gasket sealing a gap between a connecting end portion of the module and the periphery of an opening of the connector unit.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 27, 2018
    Assignee: Yamaichi Electronics Co., Ltd.
    Inventors: Yosuke Takai, Toshiyasu Ito
  • Patent number: 9891394
    Abstract: In a transceiver module, where one end of a module substrate is inserted and connected to a concave portion of a plug connector and when one end face of the module substrate is touched to the inner periphery face forming the concave portion, a projection portion formed at the periphery of the concave portion of the plug connector is fitted to a notch portion of the module substrate.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: February 13, 2018
    Assignees: YAMAICHI ELECTRONICS CO., LTD., HITACHI METALS, LTD.
    Inventors: Yosuke Takai, Toshiyasu Ito, Yoshinori Sunaga, Izumi Fukasaku, Kinya Yamazaki
  • Patent number: 9831582
    Abstract: A cable connector includes a connection end portion of a flexible board, in which a rectangular reinforcing plate molded of a conductive resin material is fixed to part of an upper surface of a ground plate. The connection end portion of the flexible board is electrically connected to a printed circuit board through the cable connector.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: November 28, 2017
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Toshiyasu Ito, Yosuke Takai
  • Publication number: 20170271797
    Abstract: A cable connector includes a connection end portion of a flexible board, in which a rectangular reinforcing plate molded of a conductive resin material is fixed to part of an upper surface of a ground plate. The connection end portion of the flexible board is electrically connected to a printed circuit board through the cable connector.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Inventors: Toshiyasu ITO, Yosuke TAKAI
  • Patent number: D949799
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: April 26, 2022
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Toshiyasu Ito, Yosuke Takai, Taichi Enjoji