Patents by Inventor Daiki TAKEDA

Daiki TAKEDA 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: 10336783
    Abstract: A novel catalyst capable of selectively catalyzing conversion from glucose to fructose in water or in an aqueous solution is provided. The catalyst is a solid catalyst for a hydride isomerization reaction from glucose to fructose performed in water or in an aqueous solution, comprising a group 13 element oxide whose surface has been subjected to a phosphoric acid treatment.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: July 2, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Michikazu Hara, Kiyotaka Nakajima, Daiki Takeda
  • Publication number: 20190141612
    Abstract: The present invention is designed to reduce communication overhead in communication in which beamforming is used. A user terminal according to one aspect of the present invention has a transmission section that transmits a beam identification signal for identifying a given beam, a receiving section that receives given information transmitted in the given beam based on the beam identification signal, and a control section that controls transmission of the beam identification signal.
    Type: Application
    Filed: May 8, 2017
    Publication date: May 9, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Keisuke Saito, Daiki Takeda, Satoshi Nagata
  • Publication number: 20190094473
    Abstract: A clamp member includes: a body part that includes a fiber insertion hole where an optical fiber is inserted and a hole for tension member where a tension member is inserted; and an anchoring screw that fixes the tension member to the body part. The clamp member is fixed to an end of an optical cable that includes the optical fiber and the tension member, and the clamp member is fixed to and housed in an outer housing of an optical connector.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 28, 2019
    Applicant: FUJIKURA LTD.
    Inventors: Daiki Takeda, Shigeo Takahashi
  • Patent number: 10151898
    Abstract: A former including: a guide pipe guiding an optical fiber bundle; a tape forming section forming a press-wrapping tape from a strip shape into a helical shape, while guiding the press-wrapping tape along a feed direction, the tape forming section including a curved section gradually curving the strip shaped press-wrapping tape while guiding the press-wrapping tape along the feed direction, and a helical section that is a helical tube shaped location further to a downstream side than a position where two edges of the curved section intersect with each other, the helical section causing two end portions of the press-wrapping tape that has been curved with the curved section to overlap and forming the press-wrapping tape into a helical shape, while guiding the press-wrapping tape along the feed direction, and gradually narrowing an external diameter of the helical shaped press-wrapping tape.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 11, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Tomoaki Kaji, Daiki Takeda, Satoru Shiobara, Masayoshi Yamanaka
  • Patent number: 10139583
    Abstract: An optical fiber cable includes: a cable main body including a core that includes optical fibers, at least a pair of tension members that face each other with the core interposed therebetween, and an inner sheath that covers the core and the tension members; a cylindrical outer sheath that accommodates the cable main body; a reinforcing sheet provided between the cable main body and the outer sheath; and a rip cord provided between the reinforcing sheet and the cable main body. The reinforcing sheet surrounds an entire circumference of the cable main body, the reinforcing sheet includes an overlapping portion in which portions of the reinforcing sheet overlap each other in a portion in a circumferential direction of the cable main body, and the reinforcing sheet is formed of a metal.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: November 27, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Masatoshi Ohno, Daiki Takeda, Ken Osato
  • Patent number: 10087027
    Abstract: To make a tape length that can be supplied at one time long, and to make it possible to directly supply a tape from a record wound tape. A tape supplying method of this invention includes: connecting a tape end to an outer side of one record wound tape of a first record wound tape and a second record wound tape and a tape end to an inner side of another record wound tape, by matching a surface and a rear surface of the tapes; and after the connecting, supplying a tape of the first record wound tape and the second record wound tape from a tape end of the first record wound tape to an opposite side of a side that has been connected to the second record wound tape.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: October 2, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Daiki Takeda, Masashi Ohno, Satoru Shiobara, Masayoshi Yamanaka, Naoki Okada
  • Patent number: 10070453
    Abstract: A radio base station apparatus has a multimode antenna providing multiple antenna configurations, an acquisition unit configured to acquire channel information of user equipment and at least one of location information of the user equipment and phase difference information between antenna ports of signals transmitted from the user equipment, and a determination unit configured to determine scheduling for the user equipment together with an antenna configuration to be allocated to the user equipment, based upon the acquired information.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: September 4, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Inoue, Daiki Takeda
  • Publication number: 20180248601
    Abstract: A user apparatus communicating with a base station in a radio communication system including the base station and the user apparatus includes a first receiving unit to receive multiple first reference signals transmitted from the base station; a detection unit to detect a specific antenna port via which the plurality of first reference signals is received, or a specific directivity pattern, among a plurality of directivity patterns generated by a plurality of antenna ports, in which the plurality of first reference signals are received; a measuring unit to measure reception power of each of the first reference signals; and a transmission unit to group the reception power of each of the first reference signals into one of groups of the specific antenna port and the specific directivity pattern via which the first reference signals are received to transmit the groups of the reception power to the base station.
    Type: Application
    Filed: March 15, 2016
    Publication date: August 30, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Yoshihisa Kishiyama, Daiki Takeda
  • Patent number: 10061096
    Abstract: [Problem] The thickness on a ripcord in a circular optical cable is reduced, to improve workability. [Solution] An optical cable of the present invention includes: an optical fiber unit including optical fibers; a sheath, having a circular external form, configured to house the optical fiber unit in a housing portion; and two strength members embedded in the sheath; and two rip cords, wherein when a direction of connecting the two strength members sandwiching the housing portion is a first direction and a direction intersecting the first direction is a second direction, in a cross section of the optical cable, a cross-sectional shape of the housing portion has a dimension in the second direction greater than that in the first direction, and the two rip cords is disposed to sandwich the optical fiber unit such that a direction of connecting the two rip cords is in the second direction, in the cross section of the optical cable.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: August 28, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Daiki Takeda, Tomoaki Kaji, Satoru Shiobara, Masayoshi Yamanaka, Naoki Okada
  • Patent number: 10007079
    Abstract: An optical fiber unit includes: an optical fiber bundle formed by bundling a plurality of optical fibers; and a plurality of bundling members. Each of the bundling members is wound on an outer circumference of the optical fiber bundle along a length direction of the optical fiber bundle while a winding direction of the bundling member is reversed alternately, and joined with another bundling member at reverse sections where the winding direction of the bundling member is reversed. A region surrounded by a pair of the bundling members to be joined at the reverse sections includes a joining point at one of the reverse sections of another pair of the bundling members.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 26, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Daiki Takeda, Naoki Okada, Masayoshi Yamanaka, Ken Osato, Tomoaki Kaji
  • Patent number: 9978316
    Abstract: A display apparatus including a drive control section that performs control to repeatedly switch between a drive time period during which a backlight emits light and a rest time period during which the backlight does not emit light, in an alternating manner with a prescribed period. The drive control section controls a ratio between the drive time period and the rest time period, and controls the amount of drive current supplied to the backlight during the drive time period. The drive control section sets the rest time period to be a prescribed time period and controls the amount of the drive current for a range where an adjustment value is less than a prescribed value, and sets the drive current to a prescribed value and makes the rest time period shorter than the prescribed time period for a range where the adjustment value is greater than the prescribed value.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: May 22, 2018
    Assignee: EIZO Corporation
    Inventors: Akinori Hayashi, Hideaki Hashimoto, Masaaki Murai, Daiki Takeda
  • Publication number: 20180136423
    Abstract: An optical fiber unit includes: an optical fiber bundle formed by bundling a plurality of optical fibers; and a plurality of bundling members. Each of the bundling members is wound on an outer circumference of the optical fiber bundle along a length direction of the optical fiber bundle while a winding direction of the bundling member is reversed alternately, and joined with another bundling member at reverse sections where the winding direction of the bundling member is reversed. A region surrounded by a pair of the bundling members to be joined at the reverse sections includes a joining point at one of the reverse sections of another pair of the bundling members.
    Type: Application
    Filed: March 9, 2016
    Publication date: May 17, 2018
    Applicant: FUJIKURA LTD.
    Inventors: Daiki Takeda, Naoki Okada, Masayoshi Yamanaka, Ken Osato, Tomoaki Kaji
  • Patent number: 9959814
    Abstract: Provided is a display device and display method that can improve the moving image display performance. A display device includes a display panel and a backlight for the display panel. The display device also includes control means configured to output a control signal for controlling illumination and extinction of the backlight, to the backlight in synchronization with start of update of a frame on the display panel and update means configured to update a frame in each predetermined period in order to change one image displayed on a screen of the display panel. The control means outputs a control signal for controlling the backlight so that the backlight starts to illuminate after the update means starts to update one frame and ends illumination at the time point when the update means starts to update a frame subsequent to the one frame or after the time point.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: May 1, 2018
    Assignee: EIZO Corporation
    Inventors: Akinori Hayashi, Nobunari Tabata, Masanori Katsura, Daiki Takeda, Tatsunori Fuchino, Masahiro Kasashima
  • Publication number: 20180106977
    Abstract: An optical fiber cable includes: a cable main body including a core that includes optical fibers, at least a pair of tension members that face each other with the core interposed therebetween, and an inner sheath that covers the core and the tension members; a cylindrical outer sheath that accommodates the cable main body; a reinforcing sheet provided between the cable main body and the outer sheath; and a rip cord provided between the reinforcing sheet and the cable main body. The reinforcing sheet surrounds an entire circumference of the cable main body, the reinforcing sheet includes an overlapping portion in which portions of the reinforcing sheet overlap each other in a portion in a circumferential direction of the cable main body, and the reinforcing sheet is formed of a metal.
    Type: Application
    Filed: September 2, 2016
    Publication date: April 19, 2018
    Applicant: FUJIKURA LTD.
    Inventors: Masatoshi Ohno, Daiki Takeda, Ken Osato
  • Publication number: 20180081134
    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Applicant: FUJIKURA, LTD.
    Inventors: Tomoaki KAJI, Masatoshi OHNO, Daiki TAKEDA, Ken OSATO, Masayoshi YAMANAKA, Naoki OKADA
  • Patent number: 9869838
    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 16, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Tomoaki Kaji, Masatoshi Ohno, Daiki Takeda, Ken Osato, Masayoshi Yamanaka, Naoki Okada
  • Patent number: 9867060
    Abstract: In a radio communication system performing radio communications using multiple antenna ports, a radio base station apparatus transmits a reference signal from each of the antenna ports in multiple patterns corresponding to a plurality of antenna port configurations formed of single antenna elements or groups of antenna elements, and determines the antenna elements that form the respective antenna ports based upon feedback information supplied from a mobile device that has received the reference signal in the multiple patterns.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: January 9, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Inoue, Daiki Takeda
  • Patent number: 9769777
    Abstract: When using a plurality of antenna elements, calibration is performed appropriately, while preventing processing time from increasing. A base station apparatus has a plurality of antenna elements; a combiner configured to receive and combine downlink transmission signals, each including a reference signal, from monitor ports provided corresponding to the antenna elements; a channel estimator configured to estimate a channel of the reference signal for each of the antenna elements; and a calibration controller configured to calculate a calibration correction value to be applied to each of the antenna elements based upon channel estimation result.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: September 19, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Inoue, Daiki Takeda
  • Publication number: 20170153404
    Abstract: [Problem] The thickness on a ripcord in a circular optical cable is reduced, to improve workability. [Solution] An optical cable of the present invention includes: an optical fiber unit including optical fibers; a sheath, having a circular external form, configured to house the optical fiber unit in a housing portion; and two strength members embedded in the sheath; and two rip cords, wherein when a direction of connecting the two strength members sandwiching the housing portion is a first direction and a direction intersecting the first direction is a second direction, in a cross section of the optical cable, a cross-sectional shape of the housing portion has a dimension in the second direction greater than that in the first direction, and the two rip cords is disposed to sandwich the optical fiber unit such that a direction of connecting the two rip cords is in the second direction, in the cross section of the optical cable.
    Type: Application
    Filed: October 3, 2014
    Publication date: June 1, 2017
    Applicant: FUJIKURA LTD.
    Inventors: Daiki TAKEDA, Tomoaki KAJI, Satoru SHIOBARA, Masayoshi YAMANAKA, Naoki OKADA
  • Publication number: 20170146760
    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 25, 2017
    Applicant: FUJIKURA, LTD.
    Inventors: Tomoaki KAJI, Masatoshi OHNO, Daiki TAKEDA, Ken OSATO, Masayoshi YAMANAKA, Naoki OKADA