Patents by Inventor Masao Yano

Masao Yano 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: 20220187180
    Abstract: Automated analysis of particle beam measurement results is facilitated by a device that calculates a spatial parameter distribution representing spatial structure of a sample based on a scattering pattern corresponding to projection of the spatial structure of the sample to wavenumber space, the projection being obtained by detecting scattering of a particle beam which enters the sample and intersects with the sample.
    Type: Application
    Filed: April 24, 2020
    Publication date: June 16, 2022
    Inventors: Akinori ASAHARA, Hidekazu MORITA, Takuya KANAZAWA, Kanta ONO, Masao YANO, Tetsuya SHOJI
  • Publication number: 20220101041
    Abstract: An information processing device acquires an image captured by a transmission electron microscope. The information processing device, for each partial region in the image, calculates a variation in pixel values of pixels included in the partial region. The information processing device, for each partial region in the image, determines a degree of crystallinity of the partial region based on the calculated variation in the pixel values of the partial region.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 31, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirotaka SAKAMOTO, Masao YANO, Tetsuya SHOJI
  • Publication number: 20220101543
    Abstract: An information processing device acquires an image captured by a transmission electron microscope. The information processing device, for each partial region in the image, executes a two-dimensional Fourier transform on an image of the partial region. The information processing device, based on results obtained by executing the two-dimensional Fourier transform on each of the partial regions, performs clustering of frequency strengths obtained from the results of the two-dimensional Fourier transform. The information processing device determines regions of different crystallinity in the image, based on results of the clustering.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 31, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hirotaka SAKAMOTO, Masao YANO, Tetsuya SHOJI
  • Publication number: 20220012906
    Abstract: An information processing device acquires a material formation image representing a formation of a material, the material formation image being obtained by imaging the material. The information processing device generates a Fourier transform result representing a power spectrum by applying a Fourier transform to the acquired material formation image. The information processing device, on the basis of the Fourier transform result of the material formation image, employs an expectation-maximization algorithm to generate a size distribution of structures forming the material.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 13, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masao YANO, Tetsuya SHOJI
  • Publication number: 20220004582
    Abstract: A user terminal provides a data ID to a combination of first data that relates to a material, and second data that is data obtained by measuring the material and is data having a degree of confidentiality that is lower than the first data. The user terminal stores a pair consisting of the first data and the data ID in a terminal storage section. The user terminal transmits a pair consisting of the second data and the data ID to a server. The server receives the pair consisting of the second data and the data ID transmitted from the user terminal. The server stores the pair of the second data and the data ID in a data storage section. The server carries out material analysis corresponding to the second data, and generates analysis results data corresponding to the second data, and transmits the analysis results data to the user terminal.
    Type: Application
    Filed: June 15, 2021
    Publication date: January 6, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masao YANO, Tetsuya SHOJI
  • Publication number: 20210365472
    Abstract: An information processing device receives material data, relating to a material, that have been sent from a user terminal. The information processing device performs analysis in accordance with one or more analysis techniques with respect to the material data to thereby acquire analysis result data representing analysis results. The information processing device sends the analysis result data to the user terminal.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 25, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masao YANO, Tetsuya SHOJI
  • Patent number: 11087922
    Abstract: A method for producing a rare earth magnet, including preparing a melt of a first alloy having a composition represented by (R1vR2wR3x)yTzBsM1t (wherein R1 is a light rare earth element, R2 is an intermediate rare earth element, R3 is a heavy rare earth element, T is an iron group element, and M1 is an impurity element, etc.), cooling the melt of the first alloy at a rate of from 100 to 102 K/sec to obtain a first alloy ingot, pulverizing the first alloy ingot to obtain a first alloy powder having a particle diameter of 1 to 20 ?m, preparing a melt of a second alloy having a composition represented by (R4pR5q)100-uM2u (wherein R4 is a light rare earth element, R5 is an intermediate or heavy rare earth element, M2 is an alloy element, etc.), and putting the first alloy powder into contact with the melt of the second alloy.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: August 10, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Noritsugu Sakuma, Masao Yano, Hidefumi Kishimoto, Tetsuya Shoji
  • Publication number: 20210182734
    Abstract: A data analysis system comprising a measurement data acquisition part acquiring measurement data received through the communication part and analyzing a material, a data analysis part using a trained machine learning model to process the measurement data and outputting the results of analysis of the measurement data, a storage processing part storing in an analysis result database of the storage device a data set including the measurement data and the results of processing obtained by processing the measurement data as the analysis result data set, a learning-use data set acquisition part acquiring a learning-use data set including results of evaluation of the results of processing of the measurement data performed at the outside based on the analysis result data set received through the communication part, and a learning part retraining the machine learning model based on the learning-use data set.
    Type: Application
    Filed: October 29, 2020
    Publication date: June 17, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masao YANO, Tetsuya SHOJI
  • Patent number: 10937577
    Abstract: A magnetic compound represented by the formula (R1(1-x)R2x)a(Fe(1-y)Coy)bTcMd wherein R1 is one or more elements selected from the group consisting of Sm, Pm, Er, Tm and Yb, R2 is one or more elements selected from the group consisting of Zr, La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho and Lu, T is one or more elements selected from the group consisting of Ti, V, Mo, Si and W, M is one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag and Au, 0?x?0.7, 0?y?0.7, 4?a?20, b=100-a-c-d, 0<c<7.7, and 0?d?3, the magnetic compound having a ThMn12-type crystal structure, wherein the volume fraction of ?-(Fe, Co) phase is less than 12.3%.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: March 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Masao Yano, Akira Kato, Akira Manabe, Shunji Suzuki, Kurima Kobayashi
  • Patent number: 10910987
    Abstract: To provide a motor control method ensuring that dragging loss at the time of high rotation can be reduced. A motor control method, wherein a composite permanent magnet has a core part and a shell part, the Curie temperature of one of the core part and the shell part is Tc1 K, and the Curie temperature of another is Tc2 K, and wherein when the magnitude of the reluctance torque is equal to or greater than the magnitude of the magnet torque, the temperature of the composite permanent magnet is set at Ts K that is (Tc1?100) K or higher and lower than Tc2 K and when the magnitude of the reluctance torque is less than the magnitude of the magnetic torque, the temperature of the composite permanent magnet is set at lower than the temperature Ts K or Tc1 K, whichever is lower.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Masao Yano, Masaaki Ito, Tetsuya Shoji, Hidefumi Kishimoto, Akira Kato
  • Patent number: 10892076
    Abstract: A rare earth magnet includes a main phase, a grain boundary phase present around the main phase and an intermediate phase interposed between the main phase and the grain boundary phase, and has an overall composition that is represented by the formula ((Ce(1-x)Lax)(1-y)R1y)pT(100-p-q-r)BqM1r?(R21-zM2z)s (where, R1 and R2 are rare earth elements other than Ce and La, T is at least one selected from among Fe, Ni, and Co, M1 is an element having a small amount that does not influence magnetic characteristics, and M2 is an alloy element for which a melting point of R21-zM2z is lower than a melting point of R2). A total concentration of Ce and La is higher in the main phase than in the intermediate phase, and a concentration of R2 is higher in the intermediate phase than in the main phase.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 12, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Noritsugu Sakuma, Tetsuya Shoji, Hidefumi Kishimoto, Masao Yano
  • Patent number: 10748684
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Publication number: 20200036322
    Abstract: To provide a motor control method ensuring that dragging loss at the time of high rotation can be reduced. A motor control method, wherein a composite permanent magnet has a core part and a shell part, the Curie temperature of one of the core part and the shell part is Tc1 K, and the Curie temperature of another is Tc2 K, and wherein when the magnitude of the reluctance torque is equal to or greater than the magnitude of the magnet torque, the temperature of the composite permanent magnet is set at Ts K that is (Tc1?100) K or higher and lower than Tc2 K and when the magnitude of the reluctance torque is less than the magnitude of the magnetic torque, the temperature of the composite permanent magnet is set at lower than the temperature Ts K or Tc1 K, whichever is lower.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 30, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu SAKUMA, Masao YANO, Masaaki ITO, Tetsuya SHOJI, Hidefumi KISHIMOTO, Akira KATO
  • Publication number: 20190362870
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki ITO, Masao YANO, Hidefumi KISHIMOTO, Noritsugu SAKUMA, Tetsuya SHOJI, Akira MANABE
  • Patent number: 10468165
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: November 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Patent number: 10464132
    Abstract: A method for producing a raw material powder of a permanent magnet, includes: preparing a material powder of a permanent magnet, measuring magnetic characteristics of the material powder, and judging the quality of the material powder as the raw material powder based on a preliminarily determined relation between magnetic characteristics and the structure of the material powder. A method for producing a permanent magnet includes integrating material powders judged as good in the step of judging the quality as raw material powders by the method for producing a raw material powder of a permanent magnet. A method for inspecting a permanent magnet material powder includes transmitting a magnetic field to a material powder of a permanent magnet, receiving the magnetic field from the material powder, and measuring a magnetic field difference between the transmitted magnetic field and the received magnetic field as magnetic characteristics of the material powder.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: November 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Hidefumi Kishimoto, Mikiya Nozaki, Masao Yano, Tetsuya Shoji, Akira Manabe
  • Patent number: 10424426
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: September 24, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Patent number: 10351935
    Abstract: Provided is a magnetic compound represented by the formula (R(1-x)Zrx)a(Fe(1-y)Coy)bTcMdAe (wherein R represents one or more rare earth elements, T represents one or more elements selected from the group consisting of Ti, V, Mo, and W, M represents one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag, and Au, A represents one or more elements selected from the group consisting of N, C, H, and P, 0?x?0.5, 0?y?0.6, 4?a?20, b=100?a?c?d, 0<c<7, 0?d?1, and 1?e?18), in which a main phase of the magnetic compound includes a ThMn12 type crystal structure, and a volume percentage of an ?-(Fe,Co) phase is 20% or lower.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: July 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Akira Kato, Kota Washio, Hidefumi Kishimoto, Masao Yano, Akira Manabe, Masaaki Ito, Shunji Suzuki, Kurima Kobayashi
  • Patent number: 10325704
    Abstract: A rare earth magnet having a main phase and a sub-phase, wherein the main phase has a ThMn12-type crystal structure; the sub-phase contains at least any one of an Sm5Fe17-based phase, an SmCo5-based phase, an Sm2O3-based phase, and an Sm7Cu3-based phase; assuming that the volume of the rare earth magnet is 100%, the volume fraction of the sub-phase is from 2.3 to 9.5% and the volume fraction of an ?-Fe phase is 9.0% or less; and the density of the rare earth magnet is 7.0 g/cm3 or more.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 18, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Akira Kato, Masao Yano, Shunji Suzuki, Kurima Kobayashi
  • Publication number: 20180308633
    Abstract: A method for producing a rare earth magnet, including preparing a melt of a first alloy having a composition represented by (R1vR2wR3x)yTzBsM1t (wherein R1 is a light rare earth element, R2 is an intermediate rare earth element, R3 is a heavy rare earth element, T is an iron group element, and M1 is an impurity element, etc.), cooling the melt of the first alloy at a rate of from 100 to 102 K/sec to obtain a first alloy ingot, pulverizing the first alloy ingot to obtain a first alloy powder having a particle diameter of 1 to 20 ?m, preparing a melt of a second alloy having a composition represented by (R4pR5q)100-uM2u (wherein R4 is a light rare earth element, R5 is an intermediate or heavy rare earth element, M2 is an alloy element, etc.), and putting the first alloy powder into contact with the melt of the second alloy.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 25, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki ITO, Noritsugu SAKUMA, Masao YANO, Hidefumi KISHIMOTO, Tetsuya SHOJI