Patents by Inventor Daisuke Kumagai
Daisuke Kumagai 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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Publication number: 20240172252Abstract: A terminal includes a communication unit configured to perform transmission of a signal to and reception of a signal from a base station; and a control unit configured to transmit, to another terminal, information that is received from the base station based on the transmission and the reception, or information that is obtained from the signal transmitted to or received from the base station.Type: ApplicationFiled: March 31, 2021Publication date: May 23, 2024Applicant: NTT DOCOMO, INC.Inventors: Takuma Nakamura, Tomoya Ohara, Shinya Kumagai, Daisuke Kurita
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Publication number: 20240171257Abstract: The radio relay device controls a relay state when a radio wave from a radio base station or a terminal is relayed without signal interpretation. The radio relay device transmits or receives a signal related to detection or identification to/from the radio base station or the terminal.Type: ApplicationFiled: March 19, 2021Publication date: May 23, 2024Applicant: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Haruhi Echigo, Shinya Kumagai, Yuki Takahashi, Daisuke Kurita, Yuki Hokazono, Satoshi Nagata
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Publication number: 20240155519Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives a first synchronization signal in a first band; and a control section that simultaneously uses, when a notification indicating presence of a second synchronization signal in a second band is received, the first synchronization signal and the second synchronization signal for at least one of synchronization, reception quality measurement, and radio link quality monitoring. According to one aspect of the present disclosure, it is possible to appropriately use resources according to capability.Type: ApplicationFiled: March 4, 2021Publication date: May 9, 2024Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Takuma Nakamura, Tomoya Ohara, Daisuke Kurita, Satoshi Nagata
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Publication number: 20240147442Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives, in a first band, information related to a second band; and a control section that simultaneously uses a first signal in the first band and a second signal in the second band for at least one of synchronization, measurement, channel estimation, position estimation, and reference signal transmission. According to one aspect of the present disclosure, it is possible to appropriately use resources according to capability.Type: ApplicationFiled: March 4, 2021Publication date: May 2, 2024Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Takuma Nakamura, Tomoya Ohara, Daisuke Kurita, Satoshi Nagata
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Publication number: 20240129836Abstract: A communication device includes: a transmission unit configured to transmit a connection request to a first communication device; a reception unit configured to receive connection permission from the first communication device; and a control unit configured to establish a first connection to the first communication device. The control unit controls a communication of a second communication device, and the reception unit receives recommendation information related to installation of the device itself from the first communication device.Type: ApplicationFiled: February 22, 2021Publication date: April 18, 2024Applicant: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Shinya Kumagai, Daisuke Kurita, Yuki Takahashi, Haruhi Echigo, Yuki Hokazono, Satoshi Nagata
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Publication number: 20240129838Abstract: A communication device includes: a transmission unit configured to transmit a connection request to a first communication device; a reception unit configured to receive a connection permission from the first communication device; and a control unit configured to establish a first connection to the first communication device. The control unit controls a communication of a second communication device.Type: ApplicationFiled: February 22, 2021Publication date: April 18, 2024Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Shohei Yoshioka, Haruhi Echigo, Yuki Hokazono, Yuki Takahashi, Daisuke Kurita, Satoshi Nagata
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Publication number: 20240129961Abstract: A communication device includes: a transmission unit configured to transmit a connection request to a first communication device; a reception unit configured to receive connection permission from the first communication device; and a control unit configured to establish a first connection to the first communication device. The control unit controls a communication of a second communication device, and the transmission unit transmits information related to control of the second communication device to the first communication device in a case where the connection to the first communication device is established.Type: ApplicationFiled: February 22, 2021Publication date: April 18, 2024Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Shohei Yoshioka, Haruhi Echigo, Yuki Hokazono, Yuki Takahashi, Daisuke Kurita, Satoshi Nagata
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Publication number: 20240121833Abstract: A communication device includes: a transmission unit configured to transmit a connection request to a first communication device; a reception unit configured to receive a connection permission from the first communication device; and a control unit configured to establish a first connection to the first communication device. The control unit controls a communication of a second communication device and performs a communication with the second communication device, and the second communication device performs a communication with a third communication device that includes: a transmission unit that transmits a connection request to the first communication device; a reception unit that receives a connection permission from the first communication device; and a control unit that establishes a first connection with the first communication device.Type: ApplicationFiled: February 22, 2021Publication date: April 11, 2024Applicant: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Shinya Kumagai, Daisuke Kurita, Yuki Takahashi, Haruhi Echigo, Yuki Hokazono, Satoshi Nagata
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Publication number: 20240098799Abstract: A terminal includes a receiver configured to receive system information including information pertaining to random access procedures from the base station; a controller configured to select the resources to be used for random access based on the information pertaining to the random access procedure and a device type of the terminal acting as a reference terminal; and a transmitter configured to transmit a random access preamble to the base station using the selected resource, wherein the device type of the reference terminal is a reduced-function terminal type or an enhanced-coverage terminal type.Type: ApplicationFiled: December 14, 2021Publication date: March 21, 2024Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Haruhi Echigo, Daisuke Kurita, Satoshi Nagata
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Publication number: 20240098506Abstract: UE 200 receives gap information indicating a gap between channel occasions for an initial access applied when using a second frequency band different from a first frequency band allocated for mobile communication. The UE 200 executes an initial access on a network in the second frequency band based on the gap information.Type: ApplicationFiled: October 15, 2019Publication date: March 21, 2024Applicant: NTT DOCOMO, INC.Inventors: Daisuke Kurita, Hiroki Harada, Shinya Kumagai
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Patent number: 11929511Abstract: A method of manufacturing a membrane-catalyst assembly including an electrolyte membrane and a catalyst layer bonded to the electrolyte membrane, the method including: a liquid application step of applying, in the atmosphere, a liquid to only a surface of the electrolyte membrane before bonding; and a thermocompression bonding step of bonding, to the catalyst layer, the electrolyte membrane to which the liquid is applied, by thermocompression bonding. Provided is a method of manufacturing a membrane-catalyst assembly including a polymer electrolyte membrane and a catalyst layer bonded to the polymer electrolyte membrane, in which the manufacturing method can achieve both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer and the electrolyte membrane with high productivity.Type: GrantFiled: December 21, 2020Date of Patent: March 12, 2024Assignee: TORAY INDUSTRIES, INC.Inventors: Yuta Shintaku, Ryuta Sakashita, Daisuke Izuhara, Kiyoshi Minoura, Mei Kumagai
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Patent number: 8734607Abstract: A method of producing an optical film laminate includes: a first film layer forming step of cutting a first optical film having an elongated shape into first optical film pieces along cutting lines crossing the longitudinal direction of the first optical film and disposing the first optical film pieces adjacent to each other in a substantially band or strip shape; a second film layer forming step of cutting a second optical film having an elongated shape into second optical film pieces along cutting lines crossing the longitudinal direction of the second optical film and disposing the second optical film pieces adjacent to each other in a substantially band or strip shape; and a cutting step of, while holding a third film layer made of the third optical film, the first film layer and the second film layer in a laminated state, cutting them into plural optical film laminates.Type: GrantFiled: September 14, 2012Date of Patent: May 27, 2014Assignee: Nitto Denko CorporationInventors: Daisuke Kumagai, Toshirou Nishikubo
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Patent number: 8480832Abstract: A method of manufacturing a laminate of three or more layers of optical films, including: forming a first and a second optical film pieces by cutting the first and second optical films having an elongated shape respectively; disposing the first and second optical film pieces adjacent to each other in a substantially band or strip shape with their optical orientation axis crossing the longitudinal direction of the band or strip-shape; laminating the first and second optical film pieces on a third optical film; and a cutting step of, while holding the third optical film, the first film layer and the second film layer in a laminated state, cutting them into plural pieces, and thereby forming optical film laminates.Type: GrantFiled: February 4, 2009Date of Patent: July 9, 2013Assignee: Nitto Denko CorporationInventors: Daisuke Kumagai, Toshirou Nishikubo
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Patent number: 8379308Abstract: An object of the present invention is to provide a rolled web of optical film that has an optical orientation axis, which is less displaced from a predetermined angle throughout the entire area of the elongated rolled web, and can be easily produced according to the desired angle of the optical orientation axis, and a method of producing the rolled web of optical film. The rolled web of optical film includes an optical film layer having an optical orientation axis, and an adhesive film web including a release material layer and an adhesive material layer, the optical film layer being laid on the adhesive film web via the adhesive material layer and rolled up into a roll. The optical film layer is made up of plural optical film pieces that are arranged into a substantially elongated shape with end portions of the optical film pieces being adjacent to each other.Type: GrantFiled: September 22, 2009Date of Patent: February 19, 2013Assignee: Nitto Denko CorporationInventor: Daisuke Kumagai
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Publication number: 20130008590Abstract: A method of producing an optical film laminate includes: a first film layer forming step of cutting a first optical film having an elongated shape into first optical film pieces along cutting lines crossing the longitudinal direction of the first optical film and disposing the first optical film pieces adjacent to each other in a substantially band or strip shape; a second film layer forming step of cutting a second optical film having an elongated shape into second optical film pieces along cutting lines crossing the longitudinal direction of the second optical film and disposing the second optical film pieces adjacent to each other in a substantially band or strip shape; and a cutting step of, while holding a third film layer made of the third optical film, the first film layer and the second film layer in a laminated state, cutting them into plural optical film laminates.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: NITTO DENKO CORPORATIONInventors: Daisuke Kumagai, Toshirou Nishikubo
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Patent number: 8083886Abstract: An object of the present invention is to simplify the production steps and achieve efficient use of optical film webs in a case of producing an optical film laminate having three or more layers of optical films laminated together. A method of producing optical film laminates by cutting a laminate into a desired shape includes: cutting a first optical film web into first cut pieces along first cut lines; laminating the first cut pieces onto a second optical film web to form a laminate film; cutting the laminate film into second cut pieces along second cut lines; and laminating the second cut pieces onto a third optical film web. An angle of the first cut lines is determined to have the first cut lines crossing the optical axis of the first optical film web at a predetermined angle, and an interval of the first cut lines is determined to have the width of the second optical film web substantially equal to the width of the first cut pieces.Type: GrantFiled: July 29, 2009Date of Patent: December 27, 2011Assignee: Nitto Denko CorporationInventor: Daisuke Kumagai
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Publication number: 20100314032Abstract: An object of the present invention is to improve the yield per area of optical films to be used and improve the working property when an optical film laminate, which is formed by laminating three or more optical films to have the optical orientation axis of each film oriented at a predetermined angle, is produced.Type: ApplicationFiled: February 4, 2009Publication date: December 16, 2010Applicant: NITTO DENKO CORPORATIONInventors: Daisuke Kumagai, Toshirou Nishikubo
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Publication number: 20100073770Abstract: An object of the present invention is to provide a rolled web of optical film that has an optical orientation axis, which is less displaced from a predetermined angle throughout the entire area of the elongated rolled web, and can be easily produced according to the desired angle of the optical orientation axis, and a method of producing the rolled web of optical film. The rolled web of optical film includes an optical film layer having an optical orientation axis, and an adhesive film web including a release material layer and an adhesive material layer, the optical film layer being laid on the adhesive film web via the adhesive material layer and rolled up into a roll. The optical film layer is made up of plural optical film pieces that are arranged into a substantially elongated shape with end portions of the optical film pieces being adjacent to each other.Type: ApplicationFiled: September 22, 2009Publication date: March 25, 2010Applicant: NITTO DENKO CORPORATIONInventor: Daisuke Kumagai
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Publication number: 20100024972Abstract: An object of the present invention is to simplify the production steps and achieve efficient use of optical film webs in a case of producing an optical film laminate having three or more layers of optical films laminated together. A method of producing optical film laminates by cutting a laminate into a desired shape includes: cutting a first optical film web into first cut pieces along first cut lines; laminating the first cut pieces onto a second optical film web to form a laminate film; cutting the laminate film into second cut pieces along second cut lines; and laminating the second cut pieces onto a third optical film web. An angle of the first cut lines is determined to have the first cut lines crossing the optical axis of the first optical film web at a predetermined angle, and an interval of the first cut lines is determined to have the width of the second optical film web substantially equal to the width of the first cut pieces.Type: ApplicationFiled: July 29, 2009Publication date: February 4, 2010Applicant: NITTO DENKO CORPORATIONInventor: Daisuke Kumagai
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Patent number: D1024942Type: GrantFiled: October 22, 2021Date of Patent: April 30, 2024Assignee: AUDIO-TECHNICA CORPORATIONInventors: Daisuke Yoneyama, Takashi Nara, Yutaro Kumagai