Patents by Inventor Kohei Nakamura

Kohei 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).

  • Publication number: 20200275855
    Abstract: There is provided an electrode catheter for measuring an electric potential inside a heart of a subject. The electrode catheter includes: a shaft that is inserted into the heart, wherein the shaft includes a distal end portion, and a guide portion that is connected to the distal end portion; a non-contact electrode that is provided on an outer circumferential surface of the distal end portion or the guide portion; and at least one contact electrode that is provided on the outer circumferential surface of the distal end portion and that is configured to make contact with an endocardium of the heart. The non-contact electrode is provided on the outer circumferential surface of the distal end portion or the guide portion so as not to make contact with the endocardium in a state where the contact electrode is in contact with the endocardium.
    Type: Application
    Filed: November 1, 2018
    Publication date: September 3, 2020
    Inventors: Hirokazu SOMA, Nobuhiro SUZUKI, Kohei NAKAMURA
  • Patent number: 10734046
    Abstract: Apparatuses and methods for providing voltages to conductive lines between which clock signal lines are disposed are disclosed. Voltages provided to the conductive lines may provide voltage conditions for clock signals on the clock signal lines that are relatively the same for at least some of the clock edges of the clock signals. Having the same voltage conditions may mitigate variations in timing/phase between the clock signals due to different voltage influences when a clock signal transitions from a low clock level to a high clock level.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 4, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Katsuhiro Kitagawa, Akira Yamashita, Shuichi Murai, Kohei Nakamura
  • Publication number: 20200239756
    Abstract: A latent-heat storage material composition includes: a latent-heat storage material for storing or releasing heat by utilizing absorption or release of latent heat in association with phase change; and additives mixed with the latent-heat storage material. The additives can adjust a property of the latent-heat storage material. The additives include a first additive, which is a water-soluble substance belonging to polysaccharides and is gellan gum, which is also a thickener for increasing the viscosity of a melt of the latent-heat storage material composition in a liquid phase state, based on interaction of the thickener with water contained in the latent-heat storage material composition and cations. The content of the gellan gum is 1 wt % or less of the weight of the whole latent-heat storage material composition.
    Type: Application
    Filed: February 19, 2018
    Publication date: July 30, 2020
    Applicant: TOHO GAS CO., LTD.
    Inventors: Kohei NAKAMURA, Takashi INA
  • Patent number: 10721923
    Abstract: A dual-bearing reel capable of reeling in and reeling out a fishing line includes a reel body, a spool, a spool shaft, an operating member, and an oscillating mechanism. The spool is rotatably supported by the reel body. The spool shaft supports the spool. The operating member is movably provided on the reel body and moves to perform an adjustment operation on a braking force that acts on the spool. The oscillating mechanism causes the fishing line to oscillate in the axial direction in synchronization with a rotation of the spool.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: July 28, 2020
    Assignee: SHIMANO INC.
    Inventors: Takeshi Ikuta, Kunio Takechi, Yohei Toake, Shunsaku Asaka, Kohei Nakamura
  • Patent number: 10705025
    Abstract: An inspection device includes a wearable camera attached to a worker that images an inspection object, and a laser pointer that indicates an imaging region of the wearable camera to the worker. The laser pointer is attached to the worker to emit a laser beam in a direction parallel to a line of sight of the wearable camera such that a relative distance between a light point of the laser beam and the imaging region of the wearable camera is constant and does not vary depending on a distance between the laser pointer and the workpiece.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 7, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shinji Kato, Katsuhiro Miyagaki, Hiroyuki Iwatsuki, Masaru Horiguchi, Kohei Nakamura
  • Publication number: 20200119812
    Abstract: A bidirectional optical transmission system includes a first optical transmission line including a first repeater (30A), a second optical transmission line including a second repeater (30B), and C+L band transmitting/receiving devices (10, 20) connected to each other through these transmission lines so that they can communicate with each other. The C+L band transmitting/receiving device (10) transmits an optical signal in a C-band to the first optical transmission line and transmits an optical signal in an L-band to the second optical transmission line, and the C+L band transmitting/receiving device (20) transmits an optical signal in the C-band to the second optical transmission line and transmits an optical signal in the L-band to the first optical transmission line.
    Type: Application
    Filed: April 3, 2018
    Publication date: April 16, 2020
    Applicant: NEC Corporation
    Inventor: Kohei NAKAMURA
  • Publication number: 20200118608
    Abstract: Apparatuses and methods for providing voltages to conductive lines between which clock signal lines are disposed are disclosed. Voltages provided to the conductive lines may provide voltage conditions for clock signals on the clock signal lines that are relatively the same for at least some of the clock edges of the clock signals. Having the same voltage conditions may mitigate variations in timing/phase between the clock signals due to different voltage influences when a clock signal transitions from a low clock level to a high clock level.
    Type: Application
    Filed: June 10, 2019
    Publication date: April 16, 2020
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Katsuhiro Kitagawa, Akira Yamashita, Shuichi Murai, Kohei Nakamura
  • Patent number: 10605782
    Abstract: A wedge tapping device for a rotating electrical machine to be inserted through a gap between a rotor and a stator to tap a wedge. The wedge tapping device includes: a tapping portion configured to tap the wedge and having a tapping force measuring portion configured to measure a tapping force of the tapping; an energy supplying portion configured to apply tapping energy to the tapping portion; an absorbing portion configured to suppress energy to be applied to the tapping portion; and a tapping arm, on which the tapping portion is disposed, and which has a longitudinal direction in a direction perpendicular to a direction in which the tapping portion performs tapping. The tapping arm is disposed so that the longitudinal direction is parallel to a rotation axis when the tapping is performed in the gap.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: March 31, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshihiro Morimoto, Daisuke Mizuno, Kazuhiko Fukushima, Kohei Nakamura
  • Publication number: 20200002588
    Abstract: In a latent heat storage material composition prepared by mixture of a latent heat storage material with an additive that adjusts the physical properties of the latent heat storage material, the latent heat storage material includes an inorganic salt hydrate containing nw (2?nw) molecules of hydration water. The additive is a melting point modifier for adjusting the melting point of the latent heat storage material and is a substance belonging to a sugar alcohol, and is a substance having the physical property of producing negative dissolution heat upon dissolution in hydration water contained in the latent heat storage material. In a whole amount of the latent heat storage material composition, the substance belonging to a sugar alcohol has a concentration that satisfies formulae (1) and (2) per 1 mole of water of hydration of the latent heat storage material. Formula (2): 0.01?xs?1.
    Type: Application
    Filed: February 2, 2018
    Publication date: January 2, 2020
    Applicant: TOHO GAS CO., LTD.
    Inventors: Kohei NAKAMURA, Takashi INA
  • Publication number: 20190393965
    Abstract: Aspects of the present disclosure describe systems, methods and structures for optical fiber nonlinearity compensation using neural networks that advantageously employ machine learning (ML) algorithms for nonlinearity compensation (NLC) that advantageously provide a system-agnostic model independent of link parameters, and yet still achieve a similar or better performance at a lower complexity as compared with prior-art methods. Systems, methods, and structures according to aspects of the present disclosure include a data-driven model using the neural network (NN) to predict received signal nonlinearity without prior knowledge of the link parameters. Operationally, the NN is provided with intra-channel cross-phase modulation (IXPM) and intra-channel four-wave mixing (IFWM) triplets that advantageously provide a more direct pathway to underlying nonlinear interactions.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Shaoliang ZHANG, Fatih YAMAN, Eduardo RODRIGUEZ, Yoshihisa INADA, Kohei NAKAMURA, Takanori INOUE
  • Publication number: 20190368968
    Abstract: In a wedge looseness diagnosis which is performed by striking wedges of a rotary electric machine, a variation of a wave form of a strike sound is reduced with respect to a variation of an amount of looseness of the wedges, and it is difficult that a slight difference of the amount of the looseness of the wedges is discriminated, so that the wedges are struck by a strike portion in a state where the wedges are pressed by a pressure portion which presses the wedges, and a strike sound at a high frequency is reduced, whereby an amount of a variation of magnitude of the strike sound is enlarged with respect to a valuation of the amount of the looseness of the wedges, and the amount of the looseness of the wedges is judged in accordance with the strike sound which is obtained by a strike sound measuring portion.
    Type: Application
    Filed: January 23, 2017
    Publication date: December 5, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshihiro MORIMOTO, Daisuke MIZUNO, Kazuhiko FUKUSHIMA, Kohei NAKAMURA, Wataru NAGAYA
  • Publication number: 20190357511
    Abstract: A handle return position adjustment mechanism for a fishing reel including a handle disposed on the fishing reel and supported by a handle shaft is disclosed. The handle return position adjustment mechanism includes a position adjustment member detachably and non-rotatably fitted to the handle shaft and having a first rotation engagement portion, and a second rotation engagement portion disposed on the handle to be engageable with the first rotation engagement portion. At least one of the first rotation engagement portion and the second rotation engagement portion includes a plurality of portions which are arranged at intervals in a circumferential direction circling around the handle shaft. The second rotation engagement portion is selectively engaged in a relative position in the circumferential direction with respect to the first rotation engagement portion.
    Type: Application
    Filed: April 16, 2019
    Publication date: November 28, 2019
    Applicant: Shimano Inc.
    Inventors: Kohei NAKAMURA, Kunio TAKECHI
  • Publication number: 20190304532
    Abstract: Apparatuses and methods for providing clocks in a semiconductor device are disclosed. An example apparatus includes a clock generating circuit configured to generate an output clock signal based on one of rising and trailing edges of first, second, third and fourth clock signals in a first mode, phases of the first, second, third and fourth clock signals being shifted to each other. The clock generating circuit is further configured to generate the output clock signal based on both of rising and trailing edges of fifth and sixth clock signals in a second mode.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 3, 2019
    Applicant: Micron Technology, Inc.
    Inventors: Katsuhiro Kitagawa, Kazuhiro Kurihara, Kohei Nakamura, Akira Yamashita
  • Patent number: 10418081
    Abstract: Apparatuses and methods for providing voltages to conductive lines between which clock signal lines are disposed are disclosed. Voltages provided to the conductive lines may provide voltage conditions for clock signals on the clock signal lines that are relatively the same for at least some of the clock edges of the clock signals. Having the same voltage conditions may mitigate variations in timing/phase between the clock signals due to different voltage influences when a clock signal transitions from a low clock level to a high clock level.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: September 17, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Katsuhiro Kitagawa, Akira Yamashita, Shuichi Murai, Kohei Nakamura
  • Patent number: 10401564
    Abstract: Aspects of the present disclosure describe fiber nonlinearity induced transmission penalties are reduced both in fibers with large polarization-mode dispersion, and in coupled-core multicore fibers (CC-MCF). In the case of coupled multi-core fibers, the requirement for modal delay is less.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: September 3, 2019
    Assignee: NEC CORPORATION
    Inventors: Fatih Yaman, Shaoliang Zhang, Eduardo Mateo Rodriguez, Takanori Inoue, Kohei Nakamura, Yoshihisa Inada, Takaaki Ogata
  • Publication number: 20190266480
    Abstract: Aspects of the present disclosure describe a method for digital coherent transmission systems that advantageously provides low-complexity, single-step nonlinearity compensation based on artificial intelligence (AI) implemented in a deep neuron network (DNN).
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Shaoliang ZHANG, Fatih YAMAN, Ting WANG, Eduardo RODRIGUEZ, Yoshihisa INADA, Kohei NAKAMURA, Takanori INOUE
  • Publication number: 20190219516
    Abstract: An inspection device includes a wearable camera attached to a worker that images an inspection object, and a laser pointer that indicates an imaging region of the wearable camera to the worker. The laser pointer is attached to the worker to emit a laser beam in a direction parallel to a line of sight of the wearable camera such that a relative distance between a light point of the laser beam and the imaging region of the wearable camera is constant and does not vary depending on a distance between the laser pointer and the workpiece.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Shinji KATO, Katsuhiro MIYAGAKI, Hiroyuki IWATSUKI, Masaru HORIGUCHI, Kohei NAKAMURA
  • Publication number: 20190219518
    Abstract: An inspection device of the present disclosure may include an image acquisition unit that acquires image data including an inspection object, the image data being captured by a wearable camera attached to a worker inspecting the inspection object, an inspection state acquisition unit that acquires inspection state information for calculating at least one of a deviation distance from a regulation distance or a deviation angle from a regulation angle with respect to the inspection object of the worker, and an image correction unit that calculates at least one of the deviation distance or the deviation angle based on the image data and the inspection state information and corrects the image data.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Kohei NAKAMURA, Katsuhiro MIYAGAKI, Hiroyuki IWATSUKI, Shinji KATO, Masaru HORIGUCHI
  • Publication number: 20190219517
    Abstract: An inspection device includes an irregular work detection unit that detects a worker carrying out irregular work different from standard work of an inspection, and a camera control unit that controls a wearable camera worn by the worker to take an image when irregular work is detected by the irregular work detection unit.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Masaru HORIGUCHI, Hiroyuki IWATSUKI, Kohei NAKAMURA, Katsuhiro MIYAGAKI, Shinji KATO
  • Publication number: 20190220966
    Abstract: An inspection device includes an image acquisition unit that acquires image data including an inspection object, the image data being captured by a wearable camera, a characteristic amount calculation unit that calculates a characteristic amount capable of specifying the inspection object in the image data as a calculated characteristic amount, and a condition checking unit that compares the calculated characteristic amount with a learning characteristic amount stored in a learning information storage unit to check the condition of the inspection object.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: Kohei NAKAMURA, Katsuhiro MIYAGAKI, Hiroyuki IWATSUKI, Shinji KATO, Masaru HORIGUCHI