Patents by Inventor Kenichi Tamura
Kenichi Tamura 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: 20240068519Abstract: A hub seal seals a gap between an outer race member and an inner race member of a hub bearing. The hub seal includes: an annular base; and a seal member attached to the base and including an annular elastic material. The seal member includes a side lip extending toward an outer side and an intermediate lip extending toward the outer side on an inner periphery side relative to the side lip. A sliding surface of the side lip that comes into contact to seal the gap between the outer race member and the inner race member is rougher than a sliding surface of the intermediate lip that comes into contact to seal the gap between the outer race member and the inner race member.Type: ApplicationFiled: August 10, 2023Publication date: February 29, 2024Inventors: Kenichi TAMURA, Kazuki HIROTA
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Patent number: 11915511Abstract: An information processing system is configured to acquire noncontact information indicating at least one of noncontact fingerprint information and iris information of an authentication subject. Subsequently, the information processing system is configured to acquire biological information used for a collation of the authentication subject, which is recorded in advance and associated with the noncontact information.Type: GrantFiled: July 1, 2020Date of Patent: February 27, 2024Assignee: NEC CORPORATIONInventors: Fumi Irie, Misuzu Shingai, Honami Kokubo, Takeo Tamura, Koui Norimatsu, Kenichi Izumo, Yoshitaka Yoshimura
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Patent number: 11913877Abstract: The present invention relates to an improvement in spectral analysis in spectrometry, particularly in a technique of spectral analysis by spectral classification at high speed. A spectral analysis device 10 comprises: a measurement unit 20 that measures a sample spectrum of a target sample 30; and an analysis unit 40 that analyses the sample spectrum, and analyses a compound contained in the target sample 30, wherein the analysis unit has a library that is processed with an arithmetic processing in advance, the library has a plurality of compound groups to which the compound is classified, and the analysis unit further comprises an analysis display part 42, the analysis display part 42 displays, in real time, the compound group to which the compound belongs during analysis of the sample spectrum as the analysis progress or analysis result.Type: GrantFiled: August 10, 2018Date of Patent: February 27, 2024Assignee: JASCO CorporationInventors: Koshi Nagamori, Kenichi Akao, Kohei Tamura, Miyuki Kanno, Toshiyuki Nagoshi
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Patent number: 11848137Abstract: Provided is a power conversion device, including: a casing having a recessed portion; a magnetic component accommodated in the recessed portion of the casing; a heat radiation plate, which covers an opening of the recessed portion of the casing, and is thermally coupled to the magnetic component; and a fixing band wound around the magnetic component and the heat radiation plate to fix the magnetic component to the heat radiation plate, wherein at least a part of the fixing band is accommodated in a band accommodating groove formed in the recessed portion of the casing. With this configuration, assembly dimensional tolerance caused between the magnetic component and the heat radiation plate can be eliminated and it is therefore possible to maintain high output and achieve downsizing.Type: GrantFiled: June 3, 2019Date of Patent: December 19, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yu Kishiwada, Koji Nakajima, Kenichi Tamura, Taro Kimura, Yoshikazu Nozuki, Masaya Nonomura
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Patent number: 11848605Abstract: A power converter includes a circuit board, a first magnetic core, and a housing. The circuit board includes an insulating substrate and a first coil conductor. The insulating substrate includes a first side surface. The first magnetic core includes a first magnetic core member and a second magnetic core member. A first side surface of the insulating substrate is opposed to a first portion of the housing and is spaced away from the first portion of the housing. The first magnetic core member and the second magnetic core member are both thermally connected to the first portion.Type: GrantFiled: September 13, 2019Date of Patent: December 19, 2023Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kenichi Tamura, Koji Nakajima, Yoshikazu Nozuki, Masaya Nonomura, Taro Kimura, Yu Kishiwada
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Patent number: 11765291Abstract: In a medium conveying device, a projector projects light, a projection light amount of the light changes, at every fixed time, to a first projection light amount and a second projection light amount less than the first projection light amount, a receiver receives the light projected from the projector, a processor determines, at fixed sampling timings, whether a reception light amount of the receiver is at a first reception light level or a second reception light level smaller than the first reception light level, determines, when the reception light amount alternately changes to the first reception light level and the second reception light level, that a medium is not present on a conveying path, and determines, when the reception light amount is fixed to either the first reception light level or the second reception light level, that the medium is present on the conveying path.Type: GrantFiled: October 14, 2021Date of Patent: September 19, 2023Assignee: PFU LIMITEDInventor: Kenichi Tamura
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Patent number: 11693177Abstract: A peripheral light-emitting linear light guide member is composed of an optical fiber including a core having an outer periphery surface exposed from a cladding at one end in a longitudinal direction, and a light-scattering member covering an entire periphery of the outer periphery surface at an exposed portion of the core over a predetermined axial length range. The light-scattering member scatters a light emitted from the outer periphery surface of the core. In the light-scattering member, light-scattering particles are dispersion-mixed with an optically transparent base material having a higher refractive index than a refractive index of the core. An amount of the light-scattering particles around an outer periphery of the core is higher at a distal end of the light-scattering member than at an end closer to the cladding.Type: GrantFiled: March 29, 2022Date of Patent: July 4, 2023Assignee: PROTERIAL, LTD.Inventor: Kenichi Tamura
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Patent number: 11540424Abstract: Provided is an electric power converter, including: a casing; a heat radiating plate having a first main surface and a second main surface; and a substrate which is fixed to the main surface and to which a heat generating component is mounted, wherein the casing has an inner wall surface in which a first tapered portion is formed, wherein the heat radiating plate includes a second tapered portion which is connected to the first tapered portion in a heat exchangeable manner and slid with respect to the first tapered portion, wherein the heat radiating plate is configured to be displaced in a first direction with respect to the casing by the second tapered portion being slid with respect to the first tapered portion, and wherein the heat generating component is connected to the casing in a heat exchangeable manner by the heat radiating plate being displaced in the first direction.Type: GrantFiled: August 26, 2019Date of Patent: December 27, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yoshikazu Nozuki, Koji Nakajima, Kenichi Tamura, Taro Kimura, Yu Kishiwada, Masaya Nonomura
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Publication number: 20220317366Abstract: A peripheral light-emitting linear light guide member is composed of an optical fiber including a core having an outer periphery surface exposed from a cladding at one end in a longitudinal direction, and a light-scattering member covering an entire periphery of the outer periphery surface at an exposed portion of the core over a predetermined axial length range. The light-scattering member scatters a light emitted from the outer periphery surface of the core. In the light-scattering member, light-scattering particles are dispersion-mixed with an optically transparent base material having a higher refractive index than a refractive index of the core. An amount of the light-scattering particles around an outer periphery of the core is higher at a distal end of the light-scattering member than at an end closer to the cladding.Type: ApplicationFiled: March 29, 2022Publication date: October 6, 2022Inventor: Kenichi TAMURA
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Publication number: 20220264769Abstract: A power converter includes a cooler, a housing, a cooling plate, an insulating heat dissipation member, and a circuit board. The housing includes a bottom, a sidewall, and an internal space. The bottom is connected to the cooler. The cooling plate is connected to the bottom so as to stand upright with respect to the bottom. The insulating heat dissipation member is disposed on the cooling plate. The circuit board is connected to the cooling plate with the insulating heat dissipation member interposed therebetween. The cooling plate, the insulating heat dissipation member, and the circuit board are accommodated in the internal space of the housing. The cooling plate is disposed with a gap from the sidewall.Type: ApplicationFiled: August 26, 2020Publication date: August 18, 2022Applicant: Mitsubishi Electric CorporationInventors: Yu KISHIWADA, Koji NAKAJIMA, Taro KIMURA, Kenichi TAMURA, Yoshikazu NOZUKI, Masaya NONOMURA, Kenta FUJII
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Publication number: 20220103075Abstract: A power converter includes a circuit board, a first magnetic core, and a housing. The circuit board includes an insulating substrate and a first coil conductor. The insulating substrate includes a first side surface. The first magnetic core includes a first magnetic core member and a second magnetic core member. A first side surface of the insulating substrate is opposed to a first portion of the housing and is spaced away from the first portion of the housing. The first magnetic core member and the second magnetic core member are both thermally connected to the first portion.Type: ApplicationFiled: September 13, 2019Publication date: March 31, 2022Applicant: Mitsubishi Electric CorporationInventors: Kenichi TAMURA, Koji NAKAJIMA, Yoshikazu NOZUKI, Masaya NONOMURA, Taro KIMURA, Yu KISHIWADA
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Publication number: 20220046136Abstract: In a medium conveying device, a projector projects light, a projection light amount of the light changes, at every fixed time, to a first projection light amount and a second projection light amount less than the first projection light amount, a receiver receives the light projected from the projector, a processor determines, at fixed sampling timings, whether a reception light amount of the receiver is at a first reception light level or a second reception light level smaller than the first reception light level, determines, when the reception light amount alternately changes to the first reception light level and the second reception light level, that a medium is not present on a conveying path, and determines, when the reception light amount is fixed to either the first reception light level or the second reception light level, that the medium is present on the conveying path.Type: ApplicationFiled: October 14, 2021Publication date: February 10, 2022Inventor: Kenichi TAMURA
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Patent number: 11178301Abstract: In a medium conveying device, a projector projects light, a projection light amount of the light changes, at every fixed time, to a first projection light amount and a second projection light amount less than the first projection light amount, a receiver receives the light projected from the projector, a processor determines, at fixed sampling timings, whether a reception light amount of the receiver is at a first reception light level or a second reception light level smaller than the first reception light level, determines, when the reception light amount alternately changes to the first reception light level and the second reception light level, that a medium is not present on a conveying path, and determines, when the reception light amount is fixed to either the first reception light level or the second reception light level, that the medium is present on the conveying path.Type: GrantFiled: June 29, 2020Date of Patent: November 16, 2021Assignee: PFU LIMITEDInventor: Kenichi Tamura
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Publication number: 20210274678Abstract: Provided is an electric power converter, including: a casing; a heat radiating plate having a first main surface and a second main surface; and a substrate which is fixed to the main surface and to which a heat generating component is mounted, wherein the casing has an inner wall surface in which a first tapered portion is formed, wherein the heat radiating plate includes a second tapered portion which is connected to the first tapered portion in a heat exchangeable manner and slid with respect to the first tapered portion, wherein the heat radiating plate is configured to be displaced in a first direction with respect to the casing by the second tapered portion being slid with respect to the first tapered portion, and wherein the heat generating component is connected to the casing in a heat exchangeable manner by the heat radiating plate being displaced in the first direction.Type: ApplicationFiled: August 26, 2019Publication date: September 2, 2021Applicant: Mitsubishi Electric CorporationInventors: Yoshikazu NOZUKI, Koji NAKAJIMA, Kenichi TAMURA, Taro KIMURA, Yu KISHIWADA, Masaya NONOMURA
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Publication number: 20210233695Abstract: Provided is a power conversion device, including: a casing having a recessed portion; a magnetic component accommodated in the recessed portion of the casing; a heat radiation plate, which covers an opening of the recessed portion of the casing, and is thermally coupled to the magnetic component; and a fixing band wound around the magnetic component and the heat radiation plate to fix the magnetic component to the heat radiation plate, wherein at least a part of the fixing band is accommodated in a band accommodating groove formed in the recessed portion of the casing. With this configuration, assembly dimensional tolerance caused between the magnetic component and the heat radiation plate can be eliminated and it is therefore possible to maintain high output and achieve downsizing.Type: ApplicationFiled: June 3, 2019Publication date: July 29, 2021Applicant: Mitsubishi Electric CorporationInventors: Yu KISHIWADA, Koji NAKAJIMA, Kenichi TAMURA, Taro KIMURA, Yoshikazu NOZUKI, Masaya NONOMURA
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Publication number: 20210037156Abstract: In a medium conveying device, a projector projects light, a projection light amount of the light changes, at every fixed time, to a first projection light amount and a second projection light amount less than the first projection light amount, a receiver receives the light projected from the projector, a processor determines, at fixed sampling timings, whether a reception light amount of the receiver is at a first reception light level or a second reception light level smaller than the first reception light level, determines, when the reception light amount alternately changes to the first reception light level and the second reception light level, that a medium is not present on a conveying path, and determines, when the reception light amount is fixed to either the first reception light level or the second reception light level, that the medium is present on the conveying path.Type: ApplicationFiled: June 29, 2020Publication date: February 4, 2021Inventor: Kenichi Tamura
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Patent number: 9910233Abstract: An optical module is composed of a plurality of optical elements to emit or receive light rays having wavelengths different from each other, and a plurality of optical members arranged in correspondence with the plurality of optical elements respectively. The plurality of optical members each of which includes a mirror section to transmit a predetermined transmission band wavelength light ray while reflecting a predetermined reflection band wavelength light ray, and a lens section located opposite the corresponding optical element. The plurality of optical members are positioned and disposed in such a manner that the respective lens sections thereof collimate or converge the light rays to be emitted or received by the plurality of optical elements respectively, while the respective mirror sections thereof multiplex or demultiplex the light rays to be emitted or received by the plurality of optical elements respectively.Type: GrantFiled: November 17, 2015Date of Patent: March 6, 2018Assignee: Hitachi Metals, Ltd.Inventor: Kenichi Tamura
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Patent number: 9632260Abstract: A transmitter and receiver integrated optical sub-assembly includes a housing including a side wall structure and a bottom wall, a transmitter-side optical receptacle and a receiver-side optical receptacle attached to the side wall structure, a second circuit board inserted into the housing, laser diodes and photo diodes arranged on the bottom wall, a transmitter-side optical system that is disposed on the bottom wall and combines optical signals from the laser diodes, a receiver-side optical system that is disposed on the bottom wall and splits an optical signal from the receiver-side optical receptacle, a driver integrated circuit, and an amplifying integrated circuit. In the transmitter and receiver integrated optical sub-assembly, electrodes formed at the other end portion of the second circuit board are connected to the driver integrated circuit and the amplifying integrated circuit.Type: GrantFiled: March 23, 2016Date of Patent: April 25, 2017Assignee: Hitachi Metals, Ltd.Inventors: Kenji Mizobuchi, Ryuta Takahashi, Kenichi Tamura
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Patent number: 9568694Abstract: An optical module includes a first circuit board, an optical sub-assembly, a first flexible printed circuit and a second flexible printed circuit. At first electrical connection terminals and a first electrical connector are provided on the first circuit board. The optical sub-assembly includes a second circuit board that includes second electrical connection terminals and a second electrical connector. The first flexible printed circuit is connected to the first electrical connection terminals and the second electrical connection terminals. The second flexible printed circuit is connected to the first and second electrical connectors. A high-speed electrical signal of 1 GHz or higher is transmitted between both the circuit boards through the first flexible printed circuit, and a power source signal and a low-speed electrical signal of 1 MHz or lower are transmitted between both the circuit boards through the second flexible printed circuit.Type: GrantFiled: March 18, 2016Date of Patent: February 14, 2017Assignee: Hitachi Metals, Ltd.Inventors: Kenji Mizobuchi, Kenichi Tamura
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Patent number: D777316Type: GrantFiled: September 8, 2014Date of Patent: January 24, 2017Assignee: seven dreamers laboratories, Inc.Inventors: Hiroshi Yamada, Kanta Kurauchi, Hiromichi Matsui, Kenichi Tamura