Patents by Inventor Keita Takahashi

Keita Takahashi 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: 20230084976
    Abstract: A communication system of a passive optical communication network includes an optical line terminal (OLT) system including a first OLT, a second OLT, and an OLT control device that controls the first OLT and the second OLT, a plurality of splitters that connects between the first OLT and the second OLT with an optical communication path, and an optical network unit (ONU) that is connected to each of the plurality of splitters with an optical communication path.
    Type: Application
    Filed: March 6, 2020
    Publication date: March 16, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoya HATANO, Keita TAKAHASHI, Naotaka SHIBATA, Hiroko NOMURA
  • Publication number: 20230075721
    Abstract: A signal transfer management apparatus manages operations of a plurality of signal transfer devices in a system in which the signal transfer devices forming a packet network transmit and receive time synchronization messages including time information between a master device having a reference time and a plurality of slave devices.
    Type: Application
    Filed: February 18, 2020
    Publication date: March 9, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keita TAKAHASHI, Naotaka SHIBATA, Jun TERADA
  • Patent number: 11597272
    Abstract: A filler head for a storage system includes a body to be mounted inclined according to a predetermined angle regarding the gravity direction, called the filling direction, and including a main part closed by a cover part so as to form a cavity in which a separating device is received, the filler head being configured to receive, in a cylindrical wall of the separating device extending around the filling direction, a distribution nozzle of a fluid with an automatic stop sensor to prevent overfilling of the filler head, the separating device being arranged to improve the partitioning of a flow coming from a venting line and the flow going to the filling line. The separating device further includes a flange, protruding transversally from the outside surface of the cylindrical wall and mounted in the cavity upstream of the sensor of the nozzle when received in the cylindrical wall.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 7, 2023
    Assignees: Plastic Omnium Advanced Innovation and Research, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita Takahashi, Yasunari Tsuzuku
  • Patent number: 11594756
    Abstract: The sintered body has an average particle size in the range of 0.1 ?m or more and 5 ?m or less, includes gamet-type oxide base material particles having at least Li, La, and Zr, has 8% by volume or more of voids, and has an ionic conductivity of 1.0×10?5 S/cm or more at temperature of 25° C.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: February 28, 2023
    Assignee: DENSO CORPORATION
    Inventors: Shunsuke Yamakawa, Shingo Ohta, Masaki Watanabe, Naohiro Hayashi, Keita Takahashi
  • Publication number: 20230042165
    Abstract: Provided are a liquid crystal polymer particle in which a difference in contact angle of the liquid crystal polymer particle with water due to a water droplet in air at 25° C. and 50% RH between inside the particle and a surface of the particle is 7° or greater, a liquid crystal polymer particle in which a difference in atomic ratio of an oxygen atom to a carbon atom measured by X-ray photoelectron spectroscopy between inside a particle and a surface of the particle is 0.02 or greater, a method of producing the liquid crystal polymer particle, and a composite material formed of the liquid crystal polymer particle.
    Type: Application
    Filed: July 4, 2022
    Publication date: February 9, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke HAYASHI, Keita TAKAHASHI, Genya TANAKA, Hirotaka KITAGAWA
  • Publication number: 20230030036
    Abstract: A filler head for a storage system includes a body to be mounted inclined according to a predetermined angle regarding the gravity direction, called the filling direction, and including a main part closed by a cover part so as to form a cavity in which a separating device is received, the filler head being configured to receive, in a cylindrical wall of the separating device extending around the filling direction, a distribution nozzle of a fluid with an automatic stop sensor to prevent overfilling of the filler head, the separating device being arranged to improve the partitioning of a flow coming from a venting line and the flow going to the filling line. The separating device further includes a flange, protruding transversally from the outside surface of the cylindrical wall and mounted in the cavity upstream of the sensor of the nozzle when received in the cylindrical wall.
    Type: Application
    Filed: January 29, 2021
    Publication date: February 2, 2023
    Applicants: Plastic Omnium Advanced Innovation and Research, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita TAKAHASHI, Yasunari TSUZUKU
  • Publication number: 20230033939
    Abstract: A filler head for a storage system includes a body to be mounted inclined having a main part closed by a cover part forming a cavity in which a separating device is received. The filler head is configured to receive, in a cylindrical wall of the separating device, a distribution nozzle of a fluid with an automatic stop sensor to prevent overfilling of the filler head. The filler head includes a buffer volume in one-piece with the main part in a back portion of the body reducing the speed of flow coming from the venting line, and the cylindrical wall includes a recess facing the opening of the buffer volume in the back portion of the body.
    Type: Application
    Filed: January 29, 2021
    Publication date: February 2, 2023
    Applicants: PLASTIC OMNIUM ADVANCED INNOVATION AND RESEARCH, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita TAKAHASHI, Yasunari TSUZUKU
  • Publication number: 20230014905
    Abstract: The on-resistance of each of field effect transistors having different planar sizes is reduced. A semiconductor device includes first and second field effect transistors mounted on a semiconductor substrate and an insulating layer provided on a main surface of the semiconductor substrate. Here, each of the first and second field effect transistors includes a pair of main electrodes which are separated from each other and provided on the main surface of the semiconductor substrate, a cavity part which is provided in the insulating layer between the pair of main electrodes, and a gate electrode which has a head part positioned on the insulating layer and a body part that penetrates the insulating layer from the head part and protrudes toward the cavity part and in which the head part is wider than the body part. Here, the width of the cavity part of the second field effect transistor is different from the width of the cavity part of the first field effect transistor.
    Type: Application
    Filed: October 29, 2020
    Publication date: January 19, 2023
    Inventors: KATSUHIKO TAKEUCHI, KEITA TAKAHASHI
  • Publication number: 20230020941
    Abstract: An object of the present invention is to provide a composition capable of forming a thermally conductive material having excellent thermally conductive properties and excellent handleability in a semi-cured state. In addition, another object of the present invention is to provide a thermally conductive material, a thermally conductive sheet, and a device with a thermally conductive layer. The composition of the present invention contains a phenolic compound, an epoxy compound, a compound represented by Formula (1), and an inorganic nitride.
    Type: Application
    Filed: August 3, 2022
    Publication date: January 19, 2023
    Applicant: Fujifilm Corporation
    Inventors: Seiichi HITOMI, Daisuke Hayashi, Teruki Niori, Keita Takahashi
  • Publication number: 20220383589
    Abstract: An image generation apparatus obtains a virtual viewpoint image generated based on captured images obtained by image capture of an object by a plurality of image capture devices from a plurality of viewpoints and three-dimensional shape data on the object, and removes noise in the virtual viewpoint image obtained, the noise being generated due to accuracy of the three-dimensional shape data.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Inventors: Shu Fujita, Keigo Yoneda, Shuntaro Aratani, Atsushi Date, Toshiaki Fujii, Keita Takahashi, Takashi Sugie
  • Patent number: 11509357
    Abstract: A relay device for relaying communications between a plurality of radio devices that perform radio communications with a terminal and a radio control apparatus that controls the plurality of radio devices, the relay device including a plurality of signal combiners that are each provided for one of functional splitting points between the plurality of radio devices and the radio control apparatus, and are each configured to convert signal data transmitted from one of the plurality of radio devices based on a signal format in accordance with the one of the functional splitting points, and transmit the converted signal data to the radio control apparatus, and a signal switcher configured to output the signal data transmitted from the one of the plurality of radio devices, to one of the plurality of signal combiners supporting one of the functional splitting points that corresponds to the one of the plurality of radio devices.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: November 22, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kenji Miyamoto, Keita Takahashi, Hirofumi Yamamoto, Noriyuki Ota, Jun Terada
  • Patent number: 11490289
    Abstract: Provided is a control apparatus that controls any one or all of a plurality of slave station apparatuses communicating with a terminal apparatus, a plurality of master station apparatuses that control the slave station apparatuses, and a transfer apparatus that transfers data transmitted and received between the master station apparatuses and the slave station apparatuses, the control apparatus including an information acquisition unit that acquires information regarding traffic of the data transmitted and received between the master station apparatuses and the slave station apparatuses, and a switching control unit that performs, on the basis of the information regarding the traffic acquired by the information acquisition unit, switching-control of an assignment relationship between the master station apparatus and the slave station apparatus and switching-control of a transfer path of data between the master station apparatus and the slave station apparatus.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: November 1, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kenji Miyamoto, Keita Takahashi, Hirofumi Yamamoto, Noriyuki Ota, Jun Terada
  • Patent number: 11480721
    Abstract: A polymerizable liquid crystal composition having excellent solubility, used for formation of an optically anisotropic film having excellent durability. The polymerizable liquid crystal composition contains a polymerizable liquid crystal compound P1 represented by Formula (1): A-Ar-A, a polymerizable liquid crystal compound P2 represented by Formula (2): A-Ar-B, and a polymerizable liquid crystal compound P3 represented by Formula (3): B-Ar-B. In Formulae (1) and (2), A's represent predetermined side chains, all of which exhibit the same C log P value, and in Formulae (2) and (3), B's represent predetermined side chains, all of which exhibit the same C log P value. It should be noted that A and B represent side chains having C log P values different from each other, in which the C log P value of A is larger than the C log P value of B and the C log P value of at least one of A or B is 3.3 or more.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: October 25, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Hayashi, Satoshi Shimamura, Aiko Yoshida, Keita Takahashi
  • Publication number: 20220325163
    Abstract: An object of the present invention is to provide a composition capable of forming a thermally conductive sheet having excellent peel strength. In addition, another object of the present invention is to provide a thermally conductive sheet formed of the composition and a device with a thermally conductive sheet. The composition of the present invention contains a disk-like compound, a high-molecular-weight compound which is at least one selected from the group consisting of a thermoplastic resin and rubber, and inorganic particles.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 13, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke Hayashi, Seiichi Hitomi, Teruki Niori, Keita Takahashi
  • Publication number: 20220304553
    Abstract: There is provided an endoscope that allows treatment, which uses treatment tools, to be performed accurately. An observation window is mainly disposed in a nearby region, a first treatment tool outlet port is mainly disposed in a fourth quadrant, a second treatment tool outlet port is mainly disposed in a third quadrant, and an upper end position of the second treatment tool outlet port is disposed above an upper end position of the first treatment tool outlet port.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 29, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Yuta KAWAMOTO, Keita TAKAHASHI, Kota NINOMIYA
  • Publication number: 20220304552
    Abstract: There is provided an endoscope that allows treatment, which uses a treatment tool, to be performed accurately. An observation window is mainly disposed in a distal end surface region positioned above a horizontal axis, a first treatment tool outlet port is mainly disposed in a distal end surface region positioned below the horizontal axis, and a position of a center of a front water supply port in a direction of a vertical axis is disposed between a position of a center of the observation window and a position of a center of the first treatment tool outlet port in the direction of the vertical axis.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 29, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Yuta KAWAMOTO, Keita TAKAHASHI, Kota NINOMIYA
  • Patent number: 11430614
    Abstract: The present invention relates to a coconut shell-derived modified activated carbon having a BET specific surface area of 1400 to 2000 m2/g, a value of hydrogen content/carbon content of 0.0015 to 0.0055, and intra-skeletal oxygen of 0.9 mass % or less.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: August 30, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Shuichi Ishida, Keita Takahashi, Hiroaki Kitatomi, Akinori Yamabata, Yasuyuki Hirota
  • Patent number: 11370970
    Abstract: Provided are an optically anisotropic film which has excellent moisture-heat resistance and can have a reduction in the thickness, an optical film, a polarizing plate, and an image display device. The optically anisotropic film is obtained by polymerizing a polymerizable liquid crystal composition, in which the polymerizable liquid crystal composition contains a polymerizable liquid crystal compound represented by Formula (1): L1-SP1-(E3-A1)m-E1-G1-D1-Ar1-D2-G2-E2-(A2-E4)n-SP2-L2 and a polymerizable liquid crystal compound represented by Formula (2): L1-SP1-(E3-A1)m-E1-G1-D1-Ar2-D2-G2-E2-(A2-E4)n-SP2-L2, and the optically anisotropic film satisfies Formula (3): Re(450)/Re(550)<1 or Formula (4): Rth(450)/Rth(550)<1, and has a degree of alignment as measured by Raman spectroscopy of 0.4 or more.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: June 28, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Ayako Muramatsu, Ryo Satake, Mayumi Nojiri, Aiko Yoshida, Keita Takahashi
  • Patent number: 11370950
    Abstract: A first object of the present invention is to provide a surface-modified inorganic nitride having excellent dispersibility. Furthermore, a second object of the present invention is to provide a composition, a thermally conductive material, and a device with a thermally conductive layer which contain the surface-modified inorganic nitride.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: June 28, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Seiichi Hitomi, Keita Takahashi, Naoyuki Hayashi, Teruki Niori, Daisuke Hayashi
  • Publication number: 20220201536
    Abstract: An object is to provide a communication system, a communication apparatus, and a terminal apparatus capable of integrating communication paths of both of mobile access and fixed access while addition of a new function to a mobile network is reduced. In a communication system 100 according to the present invention, a communication path of one mobile bearer between a base station master station apparatus 300 and a user gateway 600 includes a split bearer configuration including a mobile access communication path being connected from the base station master station apparatus 300 to the user gateway 600 via a mobile access slave station apparatus 400 and a non-mobile access communication path being connected from the base station master station apparatus 300 to the user gateway 600 via a non-mobile access slave station apparatus 500.
    Type: Application
    Filed: April 2, 2020
    Publication date: June 23, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya FUKUI, Naotaka SHIBATA, Keita TAKAHASHI, Hideaki KIMURA, Noriyuki OTA, Hirofumi YAMAMOTO, Jun TERADA