Patents by Inventor Masayuki Murakami

Masayuki Murakami 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: 20220146625
    Abstract: An electronic device includes a transmission antenna, a reception antenna, and a controller. The transmission antenna transmits a transmission wave. The reception antenna receives a reflected wave that is the reflected transmission wave. The controller detects an object that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The controller configures a transmission signal in a second frame among a plurality of frames of the transmission wave differently from a transmission signal in a first frame among the plurality of frames.
    Type: Application
    Filed: March 3, 2020
    Publication date: May 12, 2022
    Applicant: KYOCERA Corporation
    Inventors: Masamitsu NISHIKIDO, Tooru SAHARA, Youhei MURAKAMI, Satoshi KAWAJI, Takuya HOMMA, Masayuki SATO
  • Patent number: 11255381
    Abstract: A rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements, and a cage. The cage includes an annular body, a plurality of cage prongs, and guide portions placed inward of the cage prongs in the radial direction of the cage such that the guide portions extend from a radially inner part of the annular body toward a second side in the axial direction of the cage, the guide portions being configured to position the cage by making contact with an inner ring raceway. The cage has a groove so as to connect pockets adjacent to each other in the circumferential direction, the groove being configured such that lubricant is present in the groove and a groove width of the groove is increased in the radial direction in the center of the groove in the circumferential direction.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 22, 2022
    Assignee: JTEKT CORPORATION
    Inventors: Shota Akimoto, Yuya Yamamoto, Masayuki Murakami
  • Publication number: 20210140477
    Abstract: A rolling bearing includes an inner ring, an outer ring, a plurality of rolling elements, and a cage. The cage includes an annular body, a plurality of cage prongs, and guide portions placed inward of the cage prongs in the radial direction of the cage such that the guide portions extend from a radially inner part of the annular body toward a second side in the axial direction of the cage, the guide portions being configured to position the cage by making contact with an inner ring raceway. The cage has a groove so as to connect pockets adjacent to each other in the circumferential direction, the groove being configured such that lubricant is present in the groove and a groove width of the groove is increased in the radial direction in the center of the groove in the circumferential direction.
    Type: Application
    Filed: November 2, 2020
    Publication date: May 13, 2021
    Applicant: JTEKT CORPORATION
    Inventors: Shota AKIMOTO, Yuya YAMAMOTO, Masayuki MURAKAMI
  • Patent number: 10908367
    Abstract: An optical connector cleaning tool includes a cleaning head that faces the lens (cleaning target portion) of an optical connector, and a cleaning cloth (3) that moves with respect to the cleaning head in a state in which the cleaning cloth is in contact with the lens. The cleaning cloth (3) is formed into a strip shape by a fabric (25) including a plurality of warps (28) in which a longitudinal direction thereof is a moving direction of the cleaning cloth moving with respect to the cleaning head. The warp (28) includes a first chemical fiber (31) and a second chemical fiber (32). One chemical fiber of the first chemical fiber (31) and the second chemical fiber (32) is in a stretched state, and the other chemical fiber is in a slack state. It is possible to provide an optical connector cleaning tool capable of cleaning a lens-type optical connector.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: February 2, 2021
    Assignee: NTT ADVANCED TECHNOLOGY CORPORATION
    Inventors: Masayuki Murakami, Takenobu Hamano, Terumasa Kamouchi
  • Patent number: 10815905
    Abstract: A control device includes a fuel equivalent value calculation unit for determining the flow rate of fuel supplied to a gas turbine in accordance with a target value deviation between an actual rotation speed and a target rotation speed, an upper limit deviation calculation unit for obtaining an upper limit deviation which is a deviation between a set upper limit output and an actual output, a lower limit deviation calculation unit for obtaining a lower limit deviation which is a deviation between a set lower limit output and the actual output, and a parameter-changing unit for changing any one parameter among the target rotation speed, the actual rotation speed, and the target value deviation so that the target value deviation decreases when the actual rotation speed decreases and the upper limit deviation is small, and so that the target value deviation increases when the actual rotation speed increases and the lower limit deviation is small.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Hiroki Suzuki, Yasutsugu Takata, Yoshiaki Nakanishi, Masayuki Murakami
  • Patent number: 10655543
    Abstract: A gas turbine includes an air cooler that subjects compressed air extracted from a compressor to heat exchange and supplies the cooled compressed air to a cooling system of a rotor system in a turbine; an air cooler bypass line that bypasses the compressed air introduced into the air cooler; an electric valve provided in the air cooler bypass line; and a control unit. The control unit controls opening and closing of the electric valve such that, during activation of a gas turbine, a degree of opening of the electric valve is set at or below a low-level degree of opening and such that, after the load of the gas turbine has been increased, the degree of opening of the electric valve is set to be larger than the low-level degree of opening.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 19, 2020
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Masakazu Inoue, Masayuki Murakami
  • Patent number: 10612783
    Abstract: A combustor replacement method and a gas turbine plant capable of efficiently replacing a combustor using an existing facility. The combustor replacement method includes a step of separating, from a plurality of fuel supply systems, a first combustor that includes a plurality of nozzle systems connected to any of the plurality of fuel supply systems and supplied with fuel from the connected fuel supply systems, and removing the first combustor from a gas turbine plant. The method includes a step of attaching a second combustor that includes fewer nozzle systems than the first combustor to the gas turbine plant, and a step of providing communication between the fuel supply systems connected to the same nozzle system of the second combustor by a coupling pipe, and coupling the fuel supply systems and the second combustor.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: April 7, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Keita Fujii, Shin Akazawa, Nobukazu Ishii, Masahiro Matsubara, Masayuki Murakami, Fuminori Fujii, Hiroshi Tanabe, Masaru Takamatsu
  • Patent number: 10599811
    Abstract: Providing a medical image storage unit that stores a medical image, an image processing unit that performs image processing on a medical image to be stored in the medical image storage unit and stores the result of the image processing in association with the medical image, and a past medical image identification unit that identifies, at a storage time point of a new storage target medical image in the medical image storage unit or at a time point before the storage time point, a past medical image related to the new storage target medical image from the medical images stored in the medical image storage unit, wherein the image processing unit performs the same image processing as that for the new storage target medical image on the identified past medical image and stores the result of the image processing in association with the past medical image.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 24, 2020
    Assignee: FUJIFILM CORPORATION
    Inventors: Toshiya Koyasu, Masayuki Murakami
  • Patent number: 10542240
    Abstract: In order to ensure uniform gradation reproducibility even when an error occurs in a phosphor wheel or a color wheel, an image in which gradations change in steps is displayed and the rotation operation of a phosphor wheel and a color wheel is controlled on the basis of color coordinate values of each gradation that are measured each time the input timings of the first reference signal and the second reference signal are changed a plurality of times.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: January 21, 2020
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Masayuki Murakami
  • Patent number: 10526923
    Abstract: A control device includes a mode-recognizing unit that recognizes whether a start mode of a steam turbine is a cold mode in which a temperature of a steam contact portion of the steam turbine is lower than a predetermined temperature or a different start mode in which the temperature of the steam contact portion is equal to or higher than the predetermined temperature, a first opening generator that generates a first degree of opening greater than a second degree of opening in the different start mode as a degree of opening of an intake air regulator of a compressor in a period after generation of steam from an exhaust heat recovery boiler is started and before supplying of the steam to the steam turbine is started, and a command output unit that outputs a command corresponding to the first degree of opening to the intake air regulator.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Daiki Fujimura, Masayuki Murakami
  • Patent number: 10352246
    Abstract: A water feeding system provided with: a first feed water line through which first feed water flows; a second feed water line through which second feed water having a lower pressure than the first feed water flows; a first heater that heats the first feed water; a first feed water introducing line that guides first heated feed water, which is the first feed water that has been heated by the first heater, to the second feed water line; a medium heat exchanger that causes the first heated feed water to exchange heat with a medium, thereby cooling the first heated feed water and heating the medium; and a cooling water injecting line that injects cooling water having a lower temperature than the first heated feed water into the first feed water introducing line, at a position located further to the second feed water line side than the medium heat exchanger.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Naohiro Sumimura, Masaaki Yamasaki, Masayuki Murakami
  • Publication number: 20190199981
    Abstract: In order to ensure uniform gradation reproducibility even when an error occurs in a phosphor wheel or a color wheel, an image in which gradations change in steps is displayed and the rotation operation of a phosphor wheel and a color wheel is controlled on the basis of color coordinate values of each gradation that are measured each time the input timings of the first reference signal and the second reference signal are changed a plurality of times.
    Type: Application
    Filed: September 16, 2016
    Publication date: June 27, 2019
    Inventor: Masayuki MURAKAMI
  • Patent number: 10287921
    Abstract: A first steam turbine and a second steam turbine of a combined cycle plant are connected by a reheat steam line via a reheat section of an exhaust heat recovery boiler. The reheat steam line and a condenser are connected by a second bypass line. A control device includes: a determination unit that determines whether or not the flow rate of first steam flowing into the first steam turbine has reached a stipulated flow rate; a command output unit that, upon determining that the flow rate of the first steam flowing into the first steam turbine has reached the stipulated flow rate, outputs a close command to close a ventilator valve that is provided in the second bypass line and is open; and a threshold alteration unit that alters the threshold with which the determination unit determines whether or not the stipulated flow rate has been reached, the threshold being positively correlated with a temperature of the first steam.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 14, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventor: Masayuki Murakami
  • Patent number: 10189804
    Abstract: It is an object of the present invention to provide an excellent method for producing an excellent therapeutic agent. The solution of the present invention is as shown in the following scheme: wherein R1 represents a C1-C6 alkyl group, R2 represents a C1-C6 alkyl group, and R3 represents a C1-C6 alkyl group.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 29, 2019
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masayuki Murakami, Yuichi Aki, Daisuke Fukatsu, Kenichi Kimura, Makoto Michida, Koji Hamaoka
  • Publication number: 20180363557
    Abstract: A water feeding system provided with: a first feed water line through which first feed water flows; a second feed water line through which second feed water having a lower pressure than the first feed water flows; a first heater that heats the first feed water; a first feed water introducing line that guides first heated feed water, which is the first feed water that has been heated by the first heater, to the second feed water line; a medium heat exchanger that causes the first heated feed water to exchange heat with a medium, thereby cooling the first heated feed water and heating the medium; and a cooling water injecting line that injects cooling water having a lower temperature than the first heated feed water into the first feed water introducing line, at a position located further to the second feed water line side than the medium heat exchanger.
    Type: Application
    Filed: July 7, 2016
    Publication date: December 20, 2018
    Inventors: Naohiro SUMIMURA, Masaaki YAMASAKI, Masayuki MURAKAMI
  • Publication number: 20180148424
    Abstract: It is an object of the present invention to provide an excellent method for producing an excellent therapeutic agent. The solution of the present invention is as shown in the following scheme: wherein R1 represents a C1-C6 alkyl group, R2 represents a C1-C6 alkyl group, and R3 represents a C1-C6 alkyl group.
    Type: Application
    Filed: April 22, 2016
    Publication date: May 31, 2018
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masayuki MURAKAMI, Yuichi AKI, Daisuke FUKATSU, Kenichi KIMURA, Makoto MICHIDA, Koji HAMAOKA
  • Patent number: 9958619
    Abstract: An optical connector cleaning tool includes a supply reel (11) having a belt-like cleaning cloth (3), and a winding bobbin (12) for winding the cleaning cloth (3). The optical connector cleaning tool also includes a housing (7) which rotatably supports the supply reel (11) and winding bobbin (12), a cleaning head (13) which comes in contact with the cleaning cloth (3), and a pressing member (5) which supports the cleaning head (13) and moves in a longitudinal direction with respect to the housing (7). The optical connector cleaning tool further includes a slide spring (53) which biases the pressing member (5) forward, and a transmission mechanism (33) which transmits an action of the pressing member (5) to the winding bobbin (12). The transmission mechanism (33) includes a rack (32) on the side of the pressing member (5), and a pinion on the side of the winding bobbin (12).
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 1, 2018
    Assignees: NTT ADVANCED TECHNOLOGY CORPORATION, NTT-AT CREATIVE CORPORATION
    Inventors: Terumasa Kamouchi, Masayuki Murakami, Masaaki Konishi, Takenobu Hamano, Setsuo Shoji
  • Publication number: 20180067268
    Abstract: An optical connector cleaning tool includes a cleaning head that faces the lens (cleaning target portion) of an optical connector, and a cleaning cloth (3) that moves with respect to the cleaning head in a state in which the cleaning cloth is in contact with the lens. The cleaning cloth (3) is formed into a strip shape by a fabric (25) including a plurality of warps (28) in which a longitudinal direction thereof is a moving direction of the cleaning cloth moving with respect to the cleaning head. The warp (28) includes a first chemical fiber (31) and a second chemical fiber (32). One chemical fiber of the first chemical fiber (31) and the second chemical fiber (32) is in a stretched state, and the other chemical fiber is in a slack state. It is possible to provide an optical connector cleaning tool capable of cleaning a lens-type optical connector.
    Type: Application
    Filed: February 8, 2016
    Publication date: March 8, 2018
    Applicant: NTT Advanced Technology Corporation
    Inventors: Masayuki MURAKAMI, Takenobu HAMANO, Terumasa KAMOUCHI
  • Publication number: 20170284307
    Abstract: A gas turbine provided with: an air cooler that subjects compressed air extracted from a compressor to heat exchange and supplies the cooled compressed air to a cooling system of a rotor system in a turbine; an air cooler bypass line that bypasses the compressed air introduced into the air cooler; an electric valve provided in the air cooler bypass line; and a control unit that controls opening and closing of the electric valve such that, during activation of a gas turbine, a degree of opening of the electric valve is set at or below a low-level degree of opening and such that, after the load of the gas turbine has been increased, the degree of opening of the electric valve is set to be larger than the low-level degree of opening.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 5, 2017
    Inventors: Masakazu INOUE, Masayuki MURAKAMI
  • Patent number: 9753231
    Abstract: An optical connector cleaning tool includes a cylindrical connecting portion to which an optical connector is connected, a cleaning unit configured to guide a cleaning thread to a coupling end face of an optical connector plug, and an optical unit having an optical path reaching the optical connector plug. The optical unit includes a lens arranged in a position facing the coupling end face to form one end portion of an optical system, and having a missing portion extending in an optical-axis direction, and an image sensor positioned at the other end of the optical system. The cleaning unit includes a rod-like cleaning tip having a thread passage through which the cleaning thread passes. The cleaning tip is inserted into a hollow portion of the lens having the missing portion extending in the optical-axis direction, such that the cleaning tip is movable in a longitudinal direction thereof.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: September 5, 2017
    Assignees: NTT ADVANCED TECHNOLOGY CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toru Miura, Masayuki Murakami, Masaru Kobayashi, Yuichi Higuchi, Joji Yamaguchi