Patents by Inventor Keijiro SAKURAMOTO

Keijiro SAKURAMOTO 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).

  • Particle size distribution measurement device and program for a particle size distribution measurement device
    Patent number: 11415499
    Abstract: The particle size distribution measurement device irradiates light onto a sample of particles, then detects secondary light generated by this irradiation, and then calculates a particle size distribution of the particles based on the detection data, and includes a separate measurement data receiving unit that receives separate measurement data obtained by separately measuring particles having a specific particle size in a separate sample, and light intensity data showing a light intensity of the secondary light generated by the particles in the separate sample, and a distribution conversion unit that, based on the separate measurement data and on the light intensity data, converts the particle size distribution from a distribution in which the numbers of particles of each particle size contained in the sample being measured are shown in relative terms to a distribution in which the numbers of these particles are shown in absolute terms.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: August 16, 2022
    Assignee: HORIBA, LTD.
    Inventors: Tetsuya Mori, Hirosuke Sugasawa, Keijiro Sakuramoto, Tetsuji Yamaguchi
  • Particle size distribution measurement device and program for a particle size distribution measurement device
    Patent number: 11169068
    Abstract: A particle size distribution measurement device contains a specific particle size light intensity calculation unit that calculates a light intensity generated by particles having a specific particle size that are contained in an object, a correlation data storage unit that stores particle number-light intensity correlation data, and a particle number calculation unit that calculates the number of particles having a specific particle size that are contained in the object being measured based on light intensities calculated by the specific particle size light intensity calculation unit, and on the particle number-light intensity correlation data.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: November 9, 2021
    Assignee: HORIBA, LTD.
    Inventors: Tetsuji Yamaguchi, Keijiro Sakuramoto, Tetsuya Mori, Hirosuke Sugasawa
  • PARTICLE SIZE DISTRIBUTION MEASUREMENT DEVICE AND PROGRAM FOR A PARTICLE SIZE DISTRIBUTION MEASUREMENT DEVICE
    Publication number: 20210293686
    Abstract: A particle size distribution measurement device contains a specific particle size light intensity calculation unit that calculates a light intensity generated by particles having a specific particle size that are contained in an object, a correlation data storage unit that stores particle number-light intensity correlation data, and a particle number calculation unit that calculates the number of particles having a specific particle size that are contained in the object being measured based on light intensities calculated by the specific particle size light intensity calculation unit, and on the particle number-light intensity correlation data.
    Type: Application
    Filed: October 11, 2017
    Publication date: September 23, 2021
    Inventors: Tetsuji YAMAGUCHI, Keijiro SAKURAMOTO, Tetsuya MORI, Hirosuke SUGASAWA
  • Particle analyzer, particle analysis method, and particle analysis program
    Patent number: 10520431
    Abstract: A particle analyzer is intended to accurately obtain an aspect ratio and a major axis length or a minor axis length of particles being dispersed in a dispersion medium.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 31, 2019
    Assignee: HORIBA, LTD.
    Inventor: Keijiro Sakuramoto
  • PARTICLE SIZE DISTRIBUTION MEASUREMENT DEVICE AND PROGRAM FOR PARTICLE SIZE DISTRIBUTION MEASURING DEVICE
    Publication number: 20190353571
    Abstract: The particle size distribution measurement device irradiates light onto a sample of particles, then detects secondary light generated by this irradiation, and then calculates a particle size distribution of the particles based on the detection data, and includes a separate measurement data receiving unit that receives separate measurement data obtained by separately measuring particles having a specific particle size in a separate sample, and light intensity data showing a light intensity of the secondary light generated by the particles in the separate sample, and a distribution conversion unit that, based on the separate measurement data and on the light intensity data, converts the particle size distribution from a distribution in which the numbers of particles of each particle size contained in the sample being measured are shown in relative terms to a distribution in which the numbers of these particles are shown in absolute terms.
    Type: Application
    Filed: October 6, 2017
    Publication date: November 21, 2019
    Inventors: Tetsuya MORI, Hirosuke SUGASAWA, Keijiro SAKURAMOTO, Tetsuji YAMAGUCHI
  • PARTICLE ANALYZER, PARTICLE ANALYSIS METHOD, AND PARTICLE ANALYSIS PROGRAM
    Publication number: 20170212045
    Abstract: A particle analyzer is intended to accurately obtain an aspect ratio and a major axis length or a minor axis length of particles being dispersed in a dispersion medium.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 27, 2017
    Inventor: Keijiro SAKURAMOTO