Patents by Inventor Kei NISHIMURA
Kei NISHIMURA 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).
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Patent number: 11965057Abstract: As a thermoplastic resin used as a matrix resin for a fiber-reinforced composite material, a thermoplastic resin having a high glass transition temperature in spite of having a low resin viscosity during molding is provided. Provided are a two-liquid curable composition for forming a thermoplastic matrix resin, the two-liquid curable composition containing an active hydrogen component containing an alkylthio group-containing aromatic diamine (A) and a diisocyanate component containing at least one kind of diisocyanate (B) selected from the group consisting of aliphatic diisocyanates, alicyclic diisocyanates, and modified forms of aliphatic diisocyanates and alicyclic diisocyanates, a matrix resin for a fiber-reinforced composite material, the matrix resin being a thermoplastic resin containing a reaction product of the active hydrogen component and the diisocyanate component, and a fiber-reinforced composite material containing the matrix resin and reinforcing fiber.Type: GrantFiled: April 9, 2019Date of Patent: April 23, 2024Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Yoshinori Yamada, Takuma Nishimura, Kei Oikawa
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Publication number: 20230090896Abstract: A cable status management system for managing a wire-break progress of a cable used in a managed device is provided with a cable status management device having a cable status storage unit that stores a wire-break progress data indicating the wire-break progress in the cable, a device user-side data management device that belongs to a device user that uses the managed device, a device manufacturer terminal that belongs to a device manufacturer that manufactures the managed device, and a cable manufacturer terminal that belongs to a cable manufacturer that manufactures the cable. At least the device manufacturer terminal and the cable manufacturer terminal are configured to be accessible with the wire-break progress data stored in the cable status storage unit via a network.Type: ApplicationFiled: June 7, 2022Publication date: March 23, 2023Inventors: Hideki NONEN, Izumi Fukasaku, Ayano Kato, Kei Nishimura, Takahiro Sugiyama, Norlyuki Imai, Takahiro Sato
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Patent number: 10709013Abstract: A multilayer wiring board having a first layer and a second layer laminated with a ground conductor, respectively, and having a differential wire line configured with a first wire line and a second wire line, includes a pair of through-holes and which is formed in the first layer and the second layer and electrically connects the first wire line and the second wire line arranged on one surface of the multilayer wiring board and the first wire line and the second wire line arranged on the other surface of the multilayer wiring board, respectively; and clearances and which insulate the ground conductor and the through-holes and, in which the pair of through-holes formed in the second layer is arranged so that a virtual line connecting centers of the pair of through-holes is inclined with respect to a line perpendicular to a signal propagation direction of the differential wire line.Type: GrantFiled: February 26, 2018Date of Patent: July 7, 2020Assignee: Hitachi Metals, Ltd.Inventors: Kenji Kogo, Kei Nishimura
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Publication number: 20180279465Abstract: A multilayer wiring board having a first layer and a second layer laminated with a ground conductor, respectively, and having a differential wire line configured with a first wire line and a second wire line, includes a pair of through-holes and which is formed in the first layer and the second layer and electrically connects the first wire line and the second wire line arranged on one surface of the multilayer wiring board and the first wire line and the second wire line arranged on the other surface of the multilayer wiring board, respectively; and clearances and which insulate the ground conductor and the through-holes and, in which the pair of through-holes formed in the second layer is arranged so that a virtual line connecting centers of the pair of through-holes is inclined with respect to a line perpendicular to a signal propagation direction of the differential wire line.Type: ApplicationFiled: February 26, 2018Publication date: September 27, 2018Inventors: Kenji KOGO, Kei NISHIMURA
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Patent number: 9748696Abstract: An active cable that is capable of reducing crosstalk is provided. A ground pattern is formed so as to sandwich one or both of a part of a transmission side transmission channel located at a side closer to the other side than a compensation circuit and a part of a reception side transmission channel located at a side closer to the other side than the compensation circuit.Type: GrantFiled: June 10, 2015Date of Patent: August 29, 2017Assignee: HITACHI METALS, LTD.Inventors: Kei Nishimura, Izumi Fukasaku, Takahiro Sugiyama
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Patent number: 9595792Abstract: A cable with connector includes a cable including at least two or more differential signal transmission cables for transmitting/receiving differential signals, a connector at both ends of the cable and including a built-in paddle card to electrically connect the differential signal transmission cables to a connected device. The paddle card includes a sending-side transmission path that is formed on the paddle card so as to transmit electrical signals input from the device to the differential signal transmission cables. The sending-side transmission path includes a common-mode reflecting transmission path that is in a common-mode impedance mismatched to a transmission path of the device so as to reflect common-mode signals input from the transmission path of the device.Type: GrantFiled: November 12, 2014Date of Patent: March 14, 2017Assignee: HITACHI METALS, LTD.Inventors: Kei Nishimura, Izumi Fukasaku, Takahiro Sugiyama
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Publication number: 20160006181Abstract: An active cable that is capable of reducing crosstalk is provided. A ground pattern is formed so as to sandwich one or both of a part of a transmission side transmission channel located at a side closer to the other side than a compensation circuit and a part of a reception side transmission channel located at a side closer to the other side than the compensation circuit.Type: ApplicationFiled: June 10, 2015Publication date: January 7, 2016Inventors: Kei Nishimura, Izumi Fukasaku, Takahiro Sugiyama
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Publication number: 20150359082Abstract: A cable with connectors includes a differential transmission path disposed in a paddle card and configured to allow transmission of differential signals between a device and differential signal transmission cables; a chip component mounted on the differential transmission path; and a plurality of foot pads disposed on the differential transmission path to allow mounting of the chip component, the foot pads being greater in width than traces forming the differential transmission path. The differential transmission path has a high-impedance portion at a connection thereof to the foot pads. The high-impedance portion has a differential impedance higher than that of the differential transmission path excluding the high-impedance portion.Type: ApplicationFiled: May 29, 2015Publication date: December 10, 2015Inventors: Kei NISHIMURA, Izumi Fukasaku, Takahiro Sugiyama
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Publication number: 20150200502Abstract: A cable with connector includes differential signal transmission cables, a connector at both ends of the cables, a paddle card to electrically connect the differential signal transmission cables to a connected device, sending-side electrodes and receiving-side electrodes that are formed on each of front and rear surfaces of the paddle card at one end portion thereof and are electrically connected to the device, sending-side cable connection electrodes, and receiving-side cable connection electrodes. The sending-side cable connection electrodes are formed on the front surface of the paddle card and the receiving-side cable connection electrodes are formed on the rear surface of the paddle card.Type: ApplicationFiled: November 20, 2014Publication date: July 16, 2015Inventors: Kei NISHIMURA, Izumi FUKASAKU, Takahiro SUGIYAMA
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Publication number: 20150194719Abstract: A cable with connector includes a cable including at least two or more differential signal transmission cables for transmitting/receiving differential signals, a connector at both ends of the cable and including a built-in paddle card to electrically connect the differential signal transmission cables to a connected device. The paddle card includes a sending-side transmission path that is formed on the paddle card so as to transmit electrical signals input from the device to the differential signal transmission cables. The sending-side transmission path includes a common-mode reflecting transmission path that is in a common-mode impedance mismatched to a transmission path of the device so as to reflect common-mode signals input from the transmission path of the device.Type: ApplicationFiled: November 12, 2014Publication date: July 9, 2015Inventors: Kei NISHIMURA, Izumi FUKASAKU, Takahiro SUGIYAMA
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Patent number: 8979576Abstract: Provided is a cable connector, a cable assembly, and a method of manufacturing the cable assembly, in which electric characteristics are stabilized by suppressing elastic deformation of a cable for differential signal transmission, and besides, which is easily connectable by reducing the number of parts. In a ground contact, an outer-conductor adhering portion which is protruded from a side wall portion of a connector main body and which is adhered with an outer conductor by a conductive adhesive is provided. In this manner, elastic deformation of a cable for differential signal transmission is suppressed, so that electric characteristics can be stabilized. Also, connecting work between the outer conductor and the ground contact can be simplified as reducing the number of parts. Further, the cable for differential signal transmission is not exposed to a high temperature of soldering or others, and therefore, thermal deformation thereof does not occur, either.Type: GrantFiled: March 12, 2013Date of Patent: March 17, 2015Assignee: Hitachi Metals, Ltd.Inventors: Hideki Nonen, Yosuke Ishimatsu, Kei Nishimura
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Publication number: 20140154928Abstract: Provided is a cable connector, a cable assembly, and a method of manufacturing the cable assembly, in which electric characteristics are stabilized by suppressing elastic deformation of a cable for differential signal transmission, and besides, which is easily connectable by reducing the number of parts. In a ground contact, an outer-conductor adhering portion which is protruded from a side wall portion of a connector main body and which is adhered with an outer conductor by a conductive adhesive is provided. In this manner, elastic deformation of a cable for differential signal transmission is suppressed, so that electric characteristics can be stabilized. Also, connecting work between the outer conductor and the ground contact can be simplified as reducing the number of parts. Further, the cable for differential signal transmission is not exposed to a high temperature of soldering or others, and therefore, thermal deformation thereof does not occur, either.Type: ApplicationFiled: March 12, 2013Publication date: June 5, 2014Applicant: HITACHI CABLE, LTD.Inventors: Hideki NONEN, Yosuke ISHIMATSU, Kei NISHIMURA