Patents by Inventor Takehiro Nakamura
Takehiro Nakamura 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: 20240408899Abstract: A dryer includes: a conveyor belt having a shape of an endless loop to convey a sheet in a conveyance direction; a drying unit facing an absorption surface of the conveyor belt to dry the sheet on the absorption surface; and an absorber including multiple suction members inside the endless loop of the conveyor belt, the suction members arrayed in the conveyance direction to absorb the sheet onto the absorption surface of the conveyor belt, and at least one suction member of the multiple suction members to generate a suction force different from suction forces of other suction members.Type: ApplicationFiled: June 4, 2024Publication date: December 12, 2024Inventors: Ryusaku HIDA, Kohki ASADA, Kazuaki KAMIHARA, Kenji NOZAWA, Genichiroh KAWAMICHI, Takayuki SEKI, Hiroki ISHIHARA, Takehiro NAKAMURA
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Publication number: 20240351351Abstract: A heating device includes a heater and a cover to cover the heater. In the heating device, the cover includes a first cover disposed in a first direction of the heater and a second cover disposed in the first direction, and the second cover is adjacent to the first cover. In the heating device, the first cover and the second cover have a gap in between, and the gap has a length greater than an amount of thermal deformation of either one of the first cover or the second cover or a total amount of thermal deformation of the first cover and the second cover.Type: ApplicationFiled: April 19, 2024Publication date: October 24, 2024Applicant: Ricoh Company Ltd.Inventors: Takayuki SEKI, Kenji NOZAWA, Kohki ASADA, Genichiroh KAWAMICHI, Takehiro NAKAMURA, Hiroki ISHIHARA
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Patent number: 12083789Abstract: An attachment mechanism includes a first holding member and a second holding member. The first holding member is configured to hold a device side plate of a belt device to attach a main body side plate of an apparatus in which the belt device is incorporated. The second holding member is configured to be fixed to the first holding member. The first holding member and the second folding member are configured to adjust a posture of the device side plate with respect to the main body side plate in assembly of the belt device.Type: GrantFiled: August 26, 2021Date of Patent: September 10, 2024Assignee: Ricoh Company, Ltd.Inventors: Hiroki Ishihara, Takehiro Nakamura, Kenji Nozawa
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Publication number: 20240158191Abstract: An open and close device, a sheet conveyor, and an image forming apparatus. The open and close device includes an open and close portion to open or shut, a biasing mechanism to bias the open and close portion in an opening direction, and a holder to hold the open and close portion shut. The biasing mechanism includes a first spring whose biasing force is invariable regardless of a stroke of the first spring, and a second spring whose biasing force is variable due to a stroke of the second spring. The sheet conveyor includes the open and close device, and the open and close portion includes a conveyor to convey a sheet. The image forming apparatus includes the sheet conveyor.Type: ApplicationFiled: October 23, 2023Publication date: May 16, 2024Applicant: Ricoh Company, Ltd.Inventors: Hiroki ISHIHARA, Kenji NOZAWA, Takehiro NAKAMURA
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Patent number: 11774606Abstract: An electromagnetic wave detector is provided. The electromagnetic wave detector comprises: a base; a sensor element arranged on a principal surface of the base and configured to convert, into an electrical signal, light emitted from a scintillator which receives an electromagnetic wave; a lens portion arranged between the scintillator and the sensor element and configured to collect the light generated by the scintillator to the sensor element; a light transmissive portion arranged between the lens portion and the sensor element and configured to transmit the light generated by the scintillator; and a shielding portion including an inner wall located on a periphery of the sensor element and configured to shield the electromagnetic wave. The inner wall is arranged between the light transmissive portion and the principal surface.Type: GrantFiled: February 17, 2022Date of Patent: October 3, 2023Assignee: CANON COMPONENTS, INC.Inventors: Takehiro Nakamura, Ryouta Saruya
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Publication number: 20230303333Abstract: A device attaches and detaches at least one of rollers in a belt conveyor in which an endless belt is wound around the rollers between a front plate and a rear plate of the belt conveyor. The device includes a guide and a roller holder. The guide has a base end and extends along a longitudinal direction of the detachable roller and includes a guide groove. The roller holder holds the detachable roller and includes an engagement portion, another engagement portion, and a guided portion. The engagement portion detachably engages with the front plate. The other engagement portion detachably engages with the rear plate. The guided portion slides along the guide groove toward the rear side or the front side of the device to engage or disengage the engagement portion with or from the front plate and engage or disengage the other engagement portion with or from the rear plate.Type: ApplicationFiled: March 23, 2023Publication date: September 28, 2023Inventors: Hiroki ISHIHARA, Kohki ASADA, Teppei KIKUCHI, Kenji NOZAWA, Takehiro NAKAMURA
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Publication number: 20220171078Abstract: An electromagnetic wave detector is provided. The electromagnetic wave detector comprises: a base; a sensor element arranged on a principal surface of the base and configured to convert, into an electrical signal, light emitted from a scintillator which receives an electromagnetic wave; a lens portion arranged between the scintillator and the sensor element and configured to collect the light generated by the scintillator to the sensor element; a light transmissive portion arranged between the lens portion and the sensor element and configured to transmit the light generated by the scintillator; and a shielding portion including an inner wall located on a periphery of the sensor element and configured to shield the electromagnetic wave. The inner wall is arranged between the light transmissive portion and the principal surface.Type: ApplicationFiled: February 17, 2022Publication date: June 2, 2022Inventors: Takehiro NAKAMURA, Ryouta SARUYA
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Publication number: 20220073295Abstract: An attachment mechanism includes a first holding member and a second holding member. The first holding member is configured to hold a device side plate of a belt device to attach a main body side plate of an apparatus in which the belt device is incorporated. The second holding member is configured to be fixed to the first holding member. The first holding member and the second folding member are configured to adjust a posture of the device side plate with respect to the main body side plate in assembly of the belt device.Type: ApplicationFiled: August 26, 2021Publication date: March 10, 2022Applicant: Ricoh Company, Ltd.Inventors: Hiroki ISHIHARA, Takehiro NAKAMURA, Kenji NOZAWA
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Patent number: 10805055Abstract: A system for supporting smooth mobility of a mobile terminal apparatus between a plurality of local areas that are arranged in a wide area is disclosed. The system includes a wide area base station apparatus that covers a wide area, a local area base station apparatus that covers a local area arranged in the wide area, and a mobile terminal apparatus that can communicate with the wide area base station apparatus and the local area base station apparatus, and is configured to scramble a data signal and a reference signal by a scrambling sequence that is common between a plurality of local areas in communication between the local area base station apparatus and the mobile terminal apparatus.Type: GrantFiled: June 27, 2013Date of Patent: October 13, 2020Assignee: NTT DOCOMO, INC.Inventors: Yoshihisa Kishiyama, Kazuaki Takeda, Satoshi Nagata, Takehiro Nakamura, Hideaki Takahashi, Sadayuki Abeta, Hiroyuki Ishii
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Patent number: 10405240Abstract: It is an objective of the present invention to suppress an influence on a downlink and to appropriately control a transmission rate of uplink user data. A mobile communication system according to the present invention includes: a transmission section for transmitting to a mobile station an exclusive channel for notifying a mobile station of transmission rate information regarding a transmission rate of user data of an uplink channel; and a transmission rate control section for determining transmission rate information to be used by the mobile station and to instruct the mobile station to receive the exclusive channel for notifying the determined transmission rate information. The transmission section transmits, to the mobile station, the exclusive channel for notifying the determined transmission rate information.Type: GrantFiled: September 15, 2005Date of Patent: September 3, 2019Assignee: NTT DOCOMO, INC.Inventors: Masafumi Usuda, Anil Umesh, Takehiro Nakamura
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Patent number: 10173397Abstract: There is provided a thermoplastic resin film which is high in tear resistance. The thermoplastic resin film according to the present invention is provided with a plurality of first thermoplastic resin layers each containing a thermoplastic resin and a plurality of second thermoplastic resin layers each containing a thermoplastic resin, and has a multilayer structure in which the first and second thermoplastic resin layers are laminated in the thickness direction, the number of laminations in total of the first and second thermoplastic resin layers in the thickness direction is greater than or equal to 5, the ratio of the total thickness of the first thermoplastic resin layers to the total thickness of the second thermoplastic resin layers is greater than 1, the tensile modulus of elasticity of the respective first thermoplastic resin layers is less than or equal to 30 MPa, and the tensile modulus of elasticity of the respective first thermoplastic resin layers is greater than or equal to 280 MPa.Type: GrantFiled: March 31, 2015Date of Patent: January 8, 2019Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Zenei Hayashi, Yoshihiro Inui, Takehiro Nakamura
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Patent number: 10154441Abstract: A mobile communication method according to the present invention includes the steps: transmitting, from an exchange (MME) to a first radio base station (eNB), a location information reporting instruction which provides an instruction to report location information on a mobile station (UE); reporting, the first radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction; transmitting, the location information reporting instruction to a second radio base station (eNB), in a handover procedure of the mobile station (UE) from the first radio base station (eNB) to the second radio base station (eNB); and reporting, from the second radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction.Type: GrantFiled: December 20, 2011Date of Patent: December 11, 2018Assignee: NTT DOCOMO, INC.Inventors: Wuri Andarmawanti Hapsari, Minami Ishii, Takehiro Nakamura
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Publication number: 20180246228Abstract: A radiation detector includes: an elongated wavelength conversion member that emits fluorescent light according to incident radiation; a photoelectric conversion element that receives the fluorescent light emitted from the wavelength conversion member, and generates an electrical signal; and a light condenser that is disposed between the wavelength conversion member and the photoelectric conversion element, and focuses the fluorescent light emitted from the wavelength conversion member on the photoelectric conversion element. The optical axis of the radiation incident on the wavelength conversion member and the optical axis of the light condenser extend in directions different from each other in view of the longitudinal direction of the wavelength conversion member. One focal point of the light condenser is disposed at the wavelength conversion member. The other focal point is disposed at the photoelectric conversion element.Type: ApplicationFiled: February 26, 2018Publication date: August 30, 2018Inventors: Takehiro NAKAMURA, Yoshihisa NEGISHI, Akihito TAKESHITA
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Publication number: 20180136342Abstract: A radiation detector includes: a wavelength conversion member that includes a fluorescent layer that emits fluorescent light when radiation enters this layer; an image sensor that converts the fluorescent light emitted from the fluorescent layer into an electric signal; and a wiring board where the image sensor is provided. The image sensor is provided on the surface on the lower side of the wiring board along one long side of the wiring board. One part of the wavelength conversion member is provided to be overlapped on the image sensor while the other part extends from the one long side of the wiring board so as not to be overlapped on the image sensor and the wiring board when viewed from radiation incident direction. The wiring board is disposed inclined so that the side where the wavelength conversion member extends can be disposed upward.Type: ApplicationFiled: November 10, 2017Publication date: May 17, 2018Inventors: Takehiro NAKAMURA, Tadashi Yasuhara, Ryoichi Fujino
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Publication number: 20180067047Abstract: A radiation detector includes: a phosphor panel including a phosphor excited by entered radiation to emit fluorescence; a light receiving element that photoelectrically converts the fluorescence emitted by the phosphor; and a wiring board provided with the light receiving element, wherein the light receiving element includes a light receiving surface provided with a light receiving portion and an electrode, the phosphor panel and the light receiving element are arranged to face each other, and a surface of the phosphor panel facing the light receiving element and the light receiving surface of the light receiving element are inclined with respect to each other such that a distance between the light receiving portion and the phosphor panel is smaller than a distance between the electrode and the phosphor panel.Type: ApplicationFiled: August 18, 2017Publication date: March 8, 2018Inventors: Takehiro NAKAMURA, Tadashi YASUHARA, Ryoichi FUJINO
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Patent number: 9801084Abstract: The present invention is designed to provide highly efficient small cell radio access. In a communication system to include a macro station (30), a local station (20), and a mobile terminal apparatus (10), the local station (20) generates measurement signals that are used in measurements in the mobile terminal apparatus (10) based on user an identifier or a user group identifier, and transmits this signal to the mobile terminal apparatus (10). The mobile terminal apparatus (10) receives the measurement signals transmitted from the local station (20) and carries out with measurements with respect to the measurement signals based on the user identifier or the user group identifier.Type: GrantFiled: June 12, 2013Date of Patent: October 24, 2017Assignee: NTT DOCOMO, INC.Inventors: Satoshi Nagata, Yoshihisa Kishiyama, Kazuaki Takeda, Hideaki Takahashi, Sadayuki Abeta, Takehiro Nakamura, Hiroyuki Ishii
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Publication number: 20170164222Abstract: A user terminal includes a receiving section that receives a discovery signal transmitted from a radio base station and a measurement section that makes measurement using the discovery signal when the receiving section receives a control signal indicating transmission of the discovery signal. The discovery signal has a longer transmission cycle than a Rel. 8 LTE synchronization signal.Type: ApplicationFiled: February 17, 2017Publication date: June 8, 2017Applicant: NTT DOCOMO, INC.Inventors: Satoshi Nagata, Yoshihisa Kishiyama, Kazuaki Takeda, Takehiro Nakamura
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Patent number: 9644774Abstract: A synthetic resin-made welding joint that has a pipe end portion into which an end portion of a synthetic resin-made tube is to be fitted and inserted, and that is configured so that the pipe end portion and the tube end portion which is fitted and inserted thereinto are enabled to be welded together by heating of heating means which externally surrounds the pipe end portion, therefore, a synthetic resin-made holder which is fitted and attached onto the pipe end portion is disposed, and a flange for ensuring a radial expansion gap with respect to the heating means is integrally formed in the holder.Type: GrantFiled: April 1, 2011Date of Patent: May 9, 2017Assignee: NIPPON PILLAR PACKING CO., LTD.Inventors: Ryo Imanishi, Masaru Misaki, Masateru Yamada, Takehiro Nakamura, Akihiro Masuda
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Publication number: 20170106629Abstract: There is provided a thermoplastic resin film which is high in tear resistance. The thermoplastic resin film according to the present invention is provided with a plurality of first thermoplastic resin layers each containing a thermoplastic resin and a plurality of second thermoplastic resin layers each containing a thermoplastic resin, and has a multilayer structure in which the first and second thermoplastic resin layers are laminated in the thickness direction, the number of laminations in total of the first and second thermoplastic resin layers in the thickness direction is greater than or equal to 5, the ratio of the total thickness of the first thermoplastic resin layers to the total thickness of the second thermoplastic resin layers is greater than 1, the tensile modulus of elasticity of the respective first thermoplastic resin layers is less than or equal to 30 MPa, and the tensile modulus of elasticity of the respective first thermoplastic resin layers is greater than or equal to 280 MPa.Type: ApplicationFiled: March 31, 2015Publication date: April 20, 2017Inventors: Zenei Hayashi, Yoshihiro Inui, Takehiro Nakamura
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Publication number: 20170019838Abstract: In order that a user terminal properly identifies a connection cell in a radio communication system (LTE-U) for operating LTE in an unlicensed band, a user terminal for communicating with a radio base station in an unlicensed band is provided with a detection section that detects a synchronization signal transmitted from a radio base station using a dummy cell ID used in common among a plurality of radio base stations, an estimation section that performs channel estimation using a reference signal, and a reception processing section that performs reception processing of system information transmitted from a radio base station using a channel estimation result.Type: ApplicationFiled: February 27, 2015Publication date: January 19, 2017Applicant: NTT DOCOMO, INC.Inventors: Hiroki Harada, Satoshi Nagata, Takehiro Nakamura, Seizo Onoe