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).

  • Publication number: 20240068519
    Abstract: 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: Application
    Filed: August 10, 2023
    Publication date: February 29, 2024
    Inventors: Kenichi TAMURA, Kazuki HIROTA
  • Patent number: 11915511
    Abstract: 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: Grant
    Filed: July 1, 2020
    Date of Patent: February 27, 2024
    Assignee: NEC CORPORATION
    Inventors: Fumi Irie, Misuzu Shingai, Honami Kokubo, Takeo Tamura, Koui Norimatsu, Kenichi Izumo, Yoshitaka Yoshimura
  • Patent number: 11913877
    Abstract: 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: Grant
    Filed: August 10, 2018
    Date of Patent: February 27, 2024
    Assignee: JASCO Corporation
    Inventors: Koshi Nagamori, Kenichi Akao, Kohei Tamura, Miyuki Kanno, Toshiyuki Nagoshi
  • Patent number: 11848137
    Abstract: 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: Grant
    Filed: June 3, 2019
    Date of Patent: December 19, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yu Kishiwada, Koji Nakajima, Kenichi Tamura, Taro Kimura, Yoshikazu Nozuki, Masaya Nonomura
  • Patent number: 11848605
    Abstract: 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: Grant
    Filed: September 13, 2019
    Date of Patent: December 19, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kenichi Tamura, Koji Nakajima, Yoshikazu Nozuki, Masaya Nonomura, Taro Kimura, Yu Kishiwada
  • Patent number: 11765291
    Abstract: 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: Grant
    Filed: October 14, 2021
    Date of Patent: September 19, 2023
    Assignee: PFU LIMITED
    Inventor: Kenichi Tamura
  • Patent number: 11693177
    Abstract: 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: Grant
    Filed: March 29, 2022
    Date of Patent: July 4, 2023
    Assignee: PROTERIAL, LTD.
    Inventor: Kenichi Tamura
  • Patent number: 11540424
    Abstract: 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: Grant
    Filed: August 26, 2019
    Date of Patent: December 27, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshikazu Nozuki, Koji Nakajima, Kenichi Tamura, Taro Kimura, Yu Kishiwada, Masaya Nonomura
  • Publication number: 20220317366
    Abstract: 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: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Inventor: Kenichi TAMURA
  • Publication number: 20220264769
    Abstract: 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: Application
    Filed: August 26, 2020
    Publication date: August 18, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yu KISHIWADA, Koji NAKAJIMA, Taro KIMURA, Kenichi TAMURA, Yoshikazu NOZUKI, Masaya NONOMURA, Kenta FUJII
  • Publication number: 20220103075
    Abstract: 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: Application
    Filed: September 13, 2019
    Publication date: March 31, 2022
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kenichi TAMURA, Koji NAKAJIMA, Yoshikazu NOZUKI, Masaya NONOMURA, Taro KIMURA, Yu KISHIWADA
  • Publication number: 20220046136
    Abstract: 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: Application
    Filed: October 14, 2021
    Publication date: February 10, 2022
    Inventor: Kenichi TAMURA
  • Patent number: 11178301
    Abstract: 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: Grant
    Filed: June 29, 2020
    Date of Patent: November 16, 2021
    Assignee: PFU LIMITED
    Inventor: Kenichi Tamura
  • Publication number: 20210274678
    Abstract: 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: Application
    Filed: August 26, 2019
    Publication date: September 2, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshikazu NOZUKI, Koji NAKAJIMA, Kenichi TAMURA, Taro KIMURA, Yu KISHIWADA, Masaya NONOMURA
  • Publication number: 20210233695
    Abstract: 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: Application
    Filed: June 3, 2019
    Publication date: July 29, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yu KISHIWADA, Koji NAKAJIMA, Kenichi TAMURA, Taro KIMURA, Yoshikazu NOZUKI, Masaya NONOMURA
  • Publication number: 20210037156
    Abstract: 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: Application
    Filed: June 29, 2020
    Publication date: February 4, 2021
    Inventor: Kenichi Tamura
  • Patent number: 9910233
    Abstract: 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: Grant
    Filed: November 17, 2015
    Date of Patent: March 6, 2018
    Assignee: Hitachi Metals, Ltd.
    Inventor: Kenichi Tamura
  • Patent number: 9632260
    Abstract: 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: Grant
    Filed: March 23, 2016
    Date of Patent: April 25, 2017
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kenji Mizobuchi, Ryuta Takahashi, Kenichi Tamura
  • Patent number: 9568694
    Abstract: 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: Grant
    Filed: March 18, 2016
    Date of Patent: February 14, 2017
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kenji Mizobuchi, Kenichi Tamura
  • Patent number: D777316
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: January 24, 2017
    Assignee: seven dreamers laboratories, Inc.
    Inventors: Hiroshi Yamada, Kanta Kurauchi, Hiromichi Matsui, Kenichi Tamura