Patents by Inventor Yuta Sagae

Yuta Sagae 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: 12280364
    Abstract: [Problem] To provide a complex compound useful as a catalyst for a hydrophosphorylation reaction and a process for producing the same. [Means to Solve the Problem] A complex compound of the present invention is a complex compound of a resin fine particle represented by the following general formula (1): wherein, R1 represents a substituted or unsubstituted hydrocarbon group, R2 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, R3 and R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, and based on the total of 100% of the values of n and m, the value of n is within the range of 20 to 100%, the value of m is within the range of 0 to 80%, and * represents bonding with the surface of the resin fine particle and a transition metal.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: April 22, 2025
    Assignee: Maruzen Petrochemical Co., Ltd.
    Inventor: Yuta Saga
  • Patent number: 11936441
    Abstract: A FrontHaul Multiplexer (FHM) for relaying communications between a signal processing device and a plurality of radio devices includes a storage unit that stores a table in which device identification information of each of the plurality of radio devices is associated with beam identification information assigned to the radio device; a scheduling information reception unit that receives, from the signal processing device, scheduling information of a user terminal performing radio communications with the plurality of radio devices; a determination unit that acquires from the table the device identification information associated with the beam identification information of uplink included in the scheduling information and then determines from the acquired device identification information the radio device in charge of the user terminal; and a transmission unit that transmits to the signal processing device an uplink signal transmitted from the determined radio device.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: March 19, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Kosugi, Tatsuro Yajima, Takuto Arai, Yuta Sagae, Akihito Hanaki, Hidekazu Shimodaira, Masahiro Fujii, Yoshiaki Ofuji
  • Publication number: 20240058723
    Abstract: An object of the present invention is to provide a method of purifying a phosphorus compound, which method is capable of reducing the generation of a by-product during distillation. The method of method of purifying a phosphorus compound according to the present invention includes the steps of: obtaining a mixture containing a specific phosphorus compound, a specific alkenyl phosphorus compound and a transition metal complex; and subjecting the resulting mixture to distillation after adding a Lewis acid to the mixture, to obtain a first distillate containing the specific phosphorus compound.
    Type: Application
    Filed: February 8, 2022
    Publication date: February 22, 2024
    Applicant: MARUZEN PETROCHEMICAL CO., LTD.
    Inventor: Yuta SAGA
  • Publication number: 20240059718
    Abstract: [Problem to be Solved] An object of the present invention is to provide a method of producing an alkenyl phosphorus compound. [Solution to Problem] The method of producing an alkenyl phosphorus compound according to the present invention is a method of allowing a specific phosphorus compound to react with a specific alkynyl compound in the presence of a transition metal complex, a Lewis acid and a low-polarity additive, to produce a specific alkenyl phosphorus compound.
    Type: Application
    Filed: February 8, 2022
    Publication date: February 22, 2024
    Applicant: MARUZEN PETROCHEMICAL CO., LTD.
    Inventor: Yuta SAGA
  • Publication number: 20220227795
    Abstract: [Problem] To provide an alkenyl phosphorus compound. [Means to Solve the Problem] The method for manufacturing an alkenyl phosphorus compound according to the present invention is a method in which a specific phosphorus compound and a specific alkynyl compound are reacted in the presence of a transition metal complex and a Lewis acid, thereby giving an alkenyl phosphorus compound.
    Type: Application
    Filed: November 26, 2020
    Publication date: July 21, 2022
    Applicant: MARUZEN PETROCHEMICAL CO., LTD.
    Inventor: Yuta SAGA
  • Publication number: 20220212177
    Abstract: [Problem] To provide a complex compound useful as a catalyst for a hydrophosphorylation reaction and a process for producing the same. [Means to Solve the Problem] A complex compound of the present invention is a complex compound of a resin fine particle represented by the following general formula (1): wherein, R1 represents a substituted or unsubstituted hydrocarbon group, R2 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, R3 and R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, and based on the total of 100% of the values of n and m, the value of n is within the range of 20 to 100%, the value of m is within the range of 0 to 80%, and * represents bonding with the surface of the resin fine particle and a transition metal.
    Type: Application
    Filed: November 26, 2020
    Publication date: July 7, 2022
    Applicant: MARUZEN PETROCHEMICAL CO., LTD.
    Inventor: Yuta SAGA
  • Publication number: 20220014236
    Abstract: An FHM for relaying communications between a signal processing device and a plurality of radio devices comprises: a storage unit that stores a table in which device identification information of each of the plurality of radio devices is associated with beam identification information assigned to the radio device; a scheduling information reception unit that receives, from the signal processing device, scheduling information of a user terminal performing radio communications with the plurality of radio devices; a determination unit that acquires from the table the device identification information associated with the beam identification information of uplink included in the scheduling information and then determines from the acquired device identification information the radio device in charge of the user terminal; and a transmission unit that transmits to the signal processing device an uplink signal transmitted from the determined radio device.
    Type: Application
    Filed: November 9, 2018
    Publication date: January 13, 2022
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Kosugi, Tatsuro Yajima, Takuto Arai, Yuta Sagae, Akihito Hanaki, Hidekazu Shimodaira, Masahiro Fujii, Yoshiaki Ofuji
  • Patent number: 11219067
    Abstract: An objective is to enable communications properly using an Scell even in a case where a radio base station which transmits “Activate command” and a radio base station which manages an Scell are different when “Inter-site CA” is performed. A radio base station eNB #1 according to the invention includes a transmission unit 12 configured to transmit an “Activate command” which is a command to activate a cell #B to a mobile station UE and thereafter notify a radio base station eNB #10 that the cell #B is activated.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: January 4, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Yuta Sagae, Kazuaki Takeda
  • Patent number: 11102668
    Abstract: Based on an entering condition for reporting reception quality of a cell via Measurement Report, UE (200) transmits to a radio access network the Measurement Report. The UE (200) judges numberOfTriggeringCell that triggers transmission of the measurement report to the radio access network, and transmits the Measurement Report when the number of neighbor cells that fulfill the entering condition is equal to or more than the numberOfTriggeringCell.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 24, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kohei Kiyoshima, Wuri Andarmawanti Hapsari, Yuta Sagae, Sadayuki Abeta
  • Patent number: 10911172
    Abstract: A user apparatus, in a radio communication system including a plurality of base stations, including a reception unit configured to receive, from a connecting base station, control information to be used for reducing an interference signal sent from an interference base station for the user apparatus; and an interference reducing unit configured to reduce the interference signal by using the control information to obtain a desired signal sent from the connecting base station.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 2, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Yousuke Sano, Yusuke Ohwatari, Satoshi Nagata, Yuta Sagae, Yukihiko Okumura
  • Patent number: 10779263
    Abstract: Techniques for assigning uplink dedicated resources in inter-site or inter-eNB carrier aggregation promptly are disclosed. One aspect of the present invention relates to a base station including a transmission and reception unit configured to use radio resources to communicate with a user equipment and a resource management unit configured to manage the radio resources, wherein the resource management unit comprises a pooling information storage unit configured to store pooling information indicative of radio resources reserved for the base station by a non-anchor base station in inter-eNB carrier aggregation, and the resource management unit autonomously assigns the radio resources indicated in the pooling information to the user equipment.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: September 15, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Wuri Andarmawanti Hapsari, Yuta Sagae
  • Patent number: 10772000
    Abstract: There is provided user equipment of a radio communication system including a base station and the user equipment, the user equipment including a receiver that receives, from the base station, measurement band information indicating a frequency range in which received quality is measured in a system bandwidth; and a measurer that measures the received quality in the frequency range indicated by the measurement band information.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: September 8, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kazuaki Takeda, Yuta Sagae, Satoshi Nagata
  • Patent number: 10555272
    Abstract: A mobile station UE according to the present invention includes: a managing unit 11 configured to manage one or multiple TAGs each including any of a Pcell and an Scell; an adjusting unit 12 configured to adjust the transmission timings of uplink signals in any of the Pcell and the Scell belonging to the same TAG such that the transmission timings will be the same; and a transmitting unit 13 configured to notify a radio base station eNB of the supportable number of TAGs.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: February 4, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Yuta Sagae
  • Publication number: 20200015107
    Abstract: Based on an entering condition for reporting reception quality of a cell via Measurement Report, UE (200) transmits to a radio access network the Measurement Report. The UE (200) judges numberOfTriggeringCell that triggers transmission of the measurement report to the radio access network, and transmits the Measurement Report when the number of neighbor cells that fulfill the entering condition is equal to or more than the numberOfTriggeringCell.
    Type: Application
    Filed: January 31, 2018
    Publication date: January 9, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kohei Kiyoshima, Wuri Andarmawanti Hapsari, Yuta Sagae, Sadayuki Abeta
  • Patent number: 10531340
    Abstract: Some techniques for promptly assigning uplink dedicated resources in inter-site or inter-eNB carrier aggregation are disclosed. One aspect of the present invention relates to a user equipment including a transmission and reception unit configured to use radio resources to communicate with multiple base stations, a resource management unit configured to manage the radio resources and a cell type determination unit configured to determine a type of a cell providing the radio resources, wherein when the resource management unit detects occurrence of a release trigger for assigned uplink dedicated resources, the cell type determination unit determines a type of a cell providing the uplink dedicated resources and retains or releases the uplink dedicated resources depending on the determined cell type.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: January 7, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Wuri Andarmawanti Hapsari, Yuta Sagae
  • Patent number: 10479809
    Abstract: Provided is a method for producing an alkenyl phosphorus compound which can produce an alkenyl phosphorus compound efficiently even with a smaller amount of a catalyst used than that used conventionally, and further which can maintain catalytic activity to produce an alkenyl phosphorus compound in high yield even at a larger reaction scale, and which can also be applied to quantity synthesis at an industrial scale using a conventional batch reactor or continuous reactor. A method for producing an alkenyl phosphorus compound, comprising: a step of reacting a compound represented by the following formula (1): [In formula (1), R1 represents OR3 or R3, R2 represents OR4 or R4, and R3 and R4 represent, for example, each independently a substituted or unsubstituted alkyl group.] with a compound represented by the following formula (2): [In formula (2), R5 represents, for example, a hydrogen atom, or a substituted or unsubstituted alkyl group.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: November 19, 2019
    Assignee: MARUZEN PETROCHEMICAL CO., LTD.
    Inventors: Yu Kinami, Ryuichi Tenjimbayashi, Yusuke Yokoo, Ichiro Kimura, Tomohiko Sato, Hiroyoshi Fujino, Tomoko Watanabe, Yuta Saga
  • Patent number: 10425180
    Abstract: A user apparatus in a radio communication system including a plurality of base stations, including a reception unit that receives, from a connecting base station, control information to be used for reducing a signal of a control channel, that causes interference, sent from an interference base station for the user apparatus, and an interference reducing unit that reduces the signal of the control channel that causes the interference by using the control information to obtain a desired signal sent from the connecting base station.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: September 24, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Yousuke Sano, Yusuke Ohwatari, Satoshi Nagata, Yuta Sagae, Kazuaki Takeda
  • Publication number: 20190263847
    Abstract: Provided is a method for producing an alkenyl phosphorus compound which can produce an alkenyl phosphorus compound efficiently even with a smaller amount of a catalyst used than that used conventionally, and further which can maintain catalytic activity to produce an alkenyl phosphorus compound in high yield even at a larger reaction scale, and which can also be applied to quantity synthesis at an industrial scale using a conventional batch reactor or continuous reactor. A method for producing an alkenyl phosphorus compound, comprising: a step of reacting a compound represented by the following formula (1): [In formula (1), R1 represents OR3 or R3, R2 represents OR4 or R4, and R3 and R4 represent, for example, each independently a substituted or unsubstituted alkyl group.] with a compound represented by the following formula (2): R5—C?CH??(2) [In formula (2), R5 represents, for example, a hydrogen atom, or a substituted or unsubstituted alkyl group.
    Type: Application
    Filed: September 8, 2016
    Publication date: August 29, 2019
    Applicant: MARUZEN PETROCHEMICAL CO., LTD.
    Inventors: Yu KINAMI, Ryuichi TENJIMBAYASHI, Yusuke YOKOO, Ichiro KIMURA, Tomohiko SATO, Hiroyoshi FUJINO, Tomoko WATANABE, Yuta SAGA
  • Publication number: 20190150020
    Abstract: There is provided user equipment of a radio communication system including a base station and the user equipment, the user equipment including a receiver that receives, from the base station, measurement band information indicating a frequency range in which received quality is measured in a system bandwidth; and a measurer that measures the received quality in the frequency range indicated by the measurement band information.
    Type: Application
    Filed: March 31, 2017
    Publication date: May 16, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kazuaki Takeda, Yuta Sagae, Satoshi Nagata
  • Publication number: 20190098641
    Abstract: A user equipment including a processor that measures a Signal to Interference and Noise Ratio (SINR) based on a reference signal and a transmitter that reports the measured SINR to a base station in accordance with a predefined reporting trigger. The processor further measures one or both of a Reference Signal Received Quality (RSRQ) and a Reference Signal Received Power (RSRP), and the transmitter reports one or both of the measured RSRQ and RSRP together with the measured SINR to the base station in accordance with the predefined reporting trigger.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kengo Yagyu, Yuta Sagae