Patents by Inventor Makoto Nagura

Makoto Nagura 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: 20230005692
    Abstract: In an electromagnetic relay device, a mover includes a movable contact movable to abut onto and separate from a stationary contact through a contact region defined between the movable and the stationary contacts. A plunger causes the mover to reciprocate to accordingly cause the movable contact to abut onto or separate from the stationary contact. A solenoid unit of the electromagnetic relay device includes an electromagnetic coil, a movable core, and a support member that slidably supports an outer peripheral surface of a slidable contact portion of the movable core. A movable wall member is located between the slidable contact portion and the contact region. The movable wall member reciprocates together with the plunger. The movable wall member is arranged to occupy a region in the electromagnetic relay device. The region contains at least the slidable contact portion when viewed in the reciprocation direction.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 5, 2023
    Applicants: DENSO CORPORATION, DENSO ELECTRONICS CORPORATION
    Inventors: Masahiro TANIMOTO, Mitsugu FUJIWARA, Hiroshi NAGURA, Makoto KAMIYA
  • Publication number: 20220404256
    Abstract: A particle size distribution measuring apparatus includes a light source that emits measurement light to a sample accommodated in a cell including a pair of light transmission plates separated from each other, one or a plurality of detectors that detects the measurement light scattered in the sample, and a particle size distribution calculator that calculates a particle size distribution of a particle group included in the sample based on output signals of the detectors. The particle size distribution measuring apparatus further includes a force applying mechanism that moves at least one of the light transmission plates to apply pressure or a shearing force to the sample in the cell, in which the particle size distribution calculator is configured to calculate the particle size distribution at the time when the pressure or the shearing force applied to the sample has changed from a first state to a second state.
    Type: Application
    Filed: November 9, 2020
    Publication date: December 22, 2022
    Inventors: Tetsuji YAMAGUCHI, Tetsuya MORI, Makoto NAGURA
  • Patent number: 11486800
    Abstract: A sample dispersing device contains a container inside of which a dispersal chamber where a power sample is dispersed is formed, and an introducing mechanism that introduces a gas containing the powder sample from the outside of the container into the dispersal chamber based on a pressure difference between the inside and the outside of the container. The introducing mechanism contains an introduction pipe where the gas containing the powder sample flows, and several restrictors arranged in the introduction pipe.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: November 1, 2022
    Assignee: HORIBA, LTD.
    Inventors: Makoto Nagura, Kazuma Aoyagi, Akihiro Minami, Hiroshi Tateno, Tomoya Shimizu, Kusuo Ueno
  • Patent number: 11448579
    Abstract: A particle size distribution measuring device includes an actual spectrum obtaining unit obtaining an actual spectrum which is a light intensity spectrum; a non-target spectrum calculating unit that receives non-target particle size distribution data indicating a particle size distribution of a non-target particle group which is not a measurement target and which is accommodated in the cell and that calculates, on the basis of the non-target particle size distribution data, a non-target spectrum which is a light intensity spectrum to be obtained by irradiating the non-target particle group with light; a non-target spectrum removing unit that calculates a target spectrum which is a light intensity spectrum obtained by subtracting an influence of the non-target spectrum from the actual spectrum; and a target particle size distribution calculating unit that calculates the particle size distribution of the particle group which is the measurement target on the basis of the target spectrum.
    Type: Grant
    Filed: May 27, 2019
    Date of Patent: September 20, 2022
    Assignee: HORIBA, LTD.
    Inventors: Tetsuya Mori, Hisashi Akiyama, Makoto Nagura
  • Publication number: 20220026330
    Abstract: A complex particle measurement apparatus comprising a first light source that irradiates a first storage cell; a photodetector that detects intensity of light; a second light source that irradiates a second storage cell; an imaging unit that images a particle group; an image data output unit that outputs image data; a supporter that supports the first storage cell and the second storage cell; and a communication pipe that connects the first storage cell and the second storage cell to pass a sample solution, wherein the first storage cell and the second storage cell have bottom surfaces located at positions different from each other, and the communication pipe is laid such that a channel from the first storage cell to the second storage cell has an incline of not less than 0 or not more than 0.
    Type: Application
    Filed: October 15, 2019
    Publication date: January 27, 2022
    Inventors: Hisashi AKIYAMA, Yasuhiro TATEWAKI, Yohei OKA, Takeshi AKAMATSU, Makoto NAGURA, Takashi KIMBA
  • Publication number: 20210310926
    Abstract: A particle size distribution measuring device includes an actual spectrum obtaining unit obtaining an actual spectrum which is a light intensity spectrum; a non-target spectrum calculating unit that receives non-target particle size distribution data indicating a particle size distribution of a non-target particle group which is not a measurement target and which is accommodated in the cell and that calculates, on the basis of the non-target particle size distribution data, a non-target spectrum which is a light intensity spectrum to be obtained by irradiating the non-target particle group with light; a non-target spectrum removing unit 23 that calculates a target spectrum which is a light intensity spectrum obtained by subtracting an influence of the non-target spectrum from the actual spectrum; and a target particle size distribution calculating unit that calculates the particle size distribution of the particle group which is the measurement target on the basis of the target spectrum.
    Type: Application
    Filed: May 27, 2019
    Publication date: October 7, 2021
    Inventors: Tetsuya MORI, Hisashi AKIYAMA, Makoto NAGURA
  • Publication number: 20210088423
    Abstract: A sample dispersing device contains a container inside of which a dispersal chamber where a power sample is dispersed is formed, and an introducing mechanism that introduces a gas containing the powder sample from the outside of the container into the dispersal chamber based on a pressure difference between the inside and the outside of the container. The introducing mechanism contains an introduction pipe where the gas containing the powder sample flows, and several restrictors arranged in the introduction pipe.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 25, 2021
    Inventors: Makoto NAGURA, Kazuma AOYAGI, Akihiro MINAMI, Hiroshi TATENO, Tomoya SHIMIZU, Kusuo UENO
  • Patent number: 10782225
    Abstract: The present invention is one that makes it possible to facilitate the assembly of an optical measurement cell, as well as shorten optical path length without taking account of handling of a spacer, and an optical measurement cell 2 including a pair of light transmitting plates 21 and 22 respectively having opposite surfaces 21a and 22a facing each other and containing test liquid X between the pair of opposite surfaces 21a and 22a of the pair of light transmitting plates 21 and 22. In addition, one 21a of the opposite surfaces 21a and 22a is formed with a spacer film 25 that contacts with the other opposite surface 22a to define the distance between the pair of opposite surfaces 21a and 22a.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: September 22, 2020
    Assignee: HORIBA, LTD.
    Inventors: Tetsuji Yamaguchi, Toshikazu Yurugi, Makoto Nagura, Takashi Kimba, Tetsuya Mori
  • Publication number: 20180372614
    Abstract: The present invention is one that makes it possible to facilitate the assembly of an optical measurement cell, as well as shorten optical path length without taking account of handling of a spacer, and an optical measurement cell 2 including a pair of light transmitting plates 21 and 22 respectively having opposite surfaces 21a and 22a facing each other and containing test liquid X between the pair of opposite surfaces 21a and 22a of the pair of light transmitting plates 21 and 22. In addition, one 21a of the opposite surfaces 21a and 22a is formed with a spacer film 25 that contacts with the other opposite surface 22a to define the distance between the pair of opposite surfaces 21a and 22a.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Inventors: Tetsuji YAMAGUCHI, Toshikazu Yurugi, Makoto Nagura, Takashi Kimba, Tetsuya Mori
  • Patent number: 9034164
    Abstract: The present invention is configured to be provided with: a bottom-equipped tubular cell main body that forms an internal space S1 that extends in a longer direction, and has one end part that is opened; a pair of applying electrodes that are arranged so as to face to each other in the internal space; and a fixing spacer that intervenes between the pair of applying electrodes to thereby define a distance between the applying electrodes, and fixes the pair of applying electrodes, wherein in a state where the fixing spacer is inserted into the cell main body, in a lower part of the internal space of the cell main body, a zeta potential measuring space in which the pair of applying electrodes are exposed is formed.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: May 19, 2015
    Assignee: HORIBA, LTD.
    Inventors: Tetsuji Yamaguchi, Makoto Nagura
  • Publication number: 20120048737
    Abstract: The present invention is configured to be provided with: a bottom-equipped tubular cell main body that forms an internal space S1 that extends in a longer direction, and has one end part that is opened; a pair of applying electrodes that are arranged so as to face to each other in the internal space; and a fixing spacer that intervenes between the pair of applying electrodes to thereby define a distance between the applying electrodes, and fixes the pair of applying electrodes, wherein in a state where the fixing spacer is inserted into the cell main body, in a lower part of the internal space of the cell main body, a zeta potential measuring space in which the pair of applying electrodes are exposed is formed.
    Type: Application
    Filed: August 30, 2011
    Publication date: March 1, 2012
    Applicant: HORIBA, LTD.
    Inventors: Tetsuji YAMAGUCHI, Makoto NAGURA
  • Patent number: 7499809
    Abstract: In a measurement system, by suppressing the environmental changes of counter-flow of air, and temperature changes and the like, measurement can be accomplished with stable high precision and replication, and by providing a transparent cell 2 which stores a particles dispersed in a dispersion medium, and a light source which irradiates light onto the particles within the transparent cell 2, and multiple light detectors 5 scattered and arranged to detect the intensity of diffracted/scattered light produced by the irradiation of light, and a computer device 6 which calculates the particle size distribution of the particles based on the light intensity signal output from the light detectors 5, in addition to the establishment of cell storage space S which stores the transparent cell 2 and the equipment storage spaces S1 and S2 which store the light source 41a, the light detector 5, and the optical device 6, the equipment storage spaces S1 and S2 are given tight closed construction separate from the cell storage s
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: March 3, 2009
    Assignee: Horiba, Ltd.
    Inventors: Makoto Nagura, Yuki Ishii, Hideyuki Ikeda, Takuji Kurozumi, Yoshiaki Togawa
  • Publication number: 20060052944
    Abstract: In a measurement system, by suppressing the environmental changes of counter-flow of air, and temperature changes and the like, measurement can be accomplished with stable high precision and replication, and by providing a transparent cell 2 which stores a particles dispersed in a dispersion medium, and a light source which irradiates light onto the particles within the transparent cell 2, and multiple light detectors 5 scattered and arranged to detect the intensity of diffracted/scattered light produced by the irradiation of light, and a computer device 6 which calculates the particle size distribution of the particles based on the light intensity signal output from the light detectors 5, in addition to the establishment of cell storage space S which stores the transparent cell 2 and the equipment storage spaces S1 and S2 which store the light source 41a, the light detector 5, and the optical device 6, the equipment storage spaces S1 and S2 are given tight closed construction separate from the cell storage s
    Type: Application
    Filed: August 30, 2005
    Publication date: March 9, 2006
    Inventors: Makoto Nagura, Yuki Ishii, Hideyuki Ikeda, Takuji Kurozumi, Yoshiaki Togawa
  • Publication number: 20040032503
    Abstract: The invention aims at providing a cell phone equipped with a camera arranged so that the camera shutter may be automatically operated through control from another telephone set or cell phone. In order to attain the object, the invention provides a cell phone equipped with a camera arranged so that the camera shutter is automatically operated based on an incoming call signal corresponding to an incoming call or based on a specific signal received after a response to the incoming call signal while the cell phone is in the camera mode.
    Type: Application
    Filed: March 21, 2003
    Publication date: February 19, 2004
    Inventors: Takao Monden, Junji Ishigaki, Makoto Nagura, Kiyoshi Nakanishi