Patents by Inventor Kakuro HIRAI

Kakuro HIRAI 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: 20230407228
    Abstract: A cell sheet cutting assistance system comprises a processor for executing a program and a storage device for storing the program. The processor: receives, as input, an evaluation standard of a cell sheet and quality information of a cultured cell sheet; determines whether the quality information satisfies the evaluation standard; and outputs a cutting position of the cell sheet based on a result of the determination.
    Type: Application
    Filed: February 10, 2023
    Publication date: December 21, 2023
    Inventors: Takayuki NOZAKI, Yuki NIIMI, Masaharu KIYAMA, Kakuro HIRAI
  • Publication number: 20230272330
    Abstract: Provided are a novel evaluation system and an evaluation method for evaluating a state of cells. The evaluation system includes: a Raman spectroscopic device configured to perform Raman spectroscopic analysis on extracellular vesicles contained in a culture supernatant of the cells; and an analysis device configured to evaluate the state of the cells based on a Raman spectrum obtained by the Raman spectroscopic analysis.
    Type: Application
    Filed: December 14, 2022
    Publication date: August 31, 2023
    Applicant: Hitachi, Ltd.
    Inventors: Kakuro HIRAI, Hikaru SAITO, Midori KATO
  • Patent number: 11587230
    Abstract: Provided is a novel cell sheet evaluation method. A cell sheet evaluation method includes: a step of analyzing, based on an observed image of a cell sheet, a characteristic indicating shape uniformity of cells constituting the cell sheet; and a step of evaluating a binding state between cells in the cell sheet based on the analysis result.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: February 21, 2023
    Assignee: Hitachi, Ltd
    Inventors: Kakuro Hirai, Masaharu Kiyama, Erino Matsumoto
  • Publication number: 20220340847
    Abstract: The present invention relates to an automatic culture device using a single-use closed system flow path for culturing a cell or a tissue, and realizes reduction in manufacturing cost and high integration property of a device. A cell culture system including an automatic culture device and an information processing device. The automatic culture device includes a plurality of types of closed system flow paths possible to be installed and removed, and a plurality of culture devices.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 27, 2022
    Inventors: Takayuki NOZAKI, Kunio OHYAMA, Masaharu KIYAMA, Kakuro HIRAI
  • Publication number: 20210301248
    Abstract: Provided are an evaluator including an analysis unit that evaluates a differentiation level of a cultured cell on the basis of a content of a component in a culture supernatant of the cultured cell, and an automatic cell culture system including the evaluator and an automatic culture device.
    Type: Application
    Filed: November 18, 2020
    Publication date: September 30, 2021
    Inventors: Hikaru SAITO, Midori KATO, Kakuro HIRAI, Masaharu KIYAMA, Kunio OHYAMA, Hiroko HANZAWA, Shizu TAKEDA
  • Publication number: 20210142473
    Abstract: Provided is a novel cell sheet evaluation method. A cell sheet evaluation method includes: a step of analyzing, based on an observed image of a cell sheet, a characteristic indicating shape uniformity of cells constituting the cell sheet; and a step of evaluating a binding state between cells in the cell sheet based on the analysis result.
    Type: Application
    Filed: November 2, 2020
    Publication date: May 13, 2021
    Inventors: Kakuro HIRAI, Masaharu KIYAMA, Erino MATSUMOTO
  • Publication number: 20210009935
    Abstract: An object of the invention is to provide a cell culture monitoring device capable of monitoring the number of cells during culture and a cell culture system. The cell culture monitoring device for monitoring proliferation of cells includes: a detection unit configured to detect particles of exosomes in culture supernatant; and an analysis unit configured to calculate the number of cells based on an obtained detection result. The cell culture system includes the cell culture monitoring device and an automatic culture device.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 14, 2021
    Inventors: Hikaru SAITO, Kakuro HIRAI, Midori KATO, Masaharu KIYAMA, Kunio OHYAMA, Hiroko HANZAWA, Shizu TAKEDA
  • Patent number: 10866189
    Abstract: In multicolor Coherent anti-Stokes Raman Scattering, a fingerprint region is a region densely filled with signals, and information about an intensity or spatial distribution of the signals is important for cell analysis. However, when laser power was increased due to the low signal intensity, there was a problem that cells were damaged. Thus, the present invention was configured such that the number of pulses of laser light emitted from a short pulse laser light source was changed by a pulse modulator. Accordingly, damage to the cells can be suppressed without significant reduction in signal intensity.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: December 15, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Shiozawa, Kakuro Hirai
  • Patent number: 10739267
    Abstract: Exemplary embodiments of the present disclosure relate to providing an optical apparatus that is capable of acquiring representative Raman spec trams with high reliability from hyper spectrum images of samples. An optical apparatus according to this disclosure: receives a specifying input that specifies a specific Raman spectrum bandwidth as a reference signal; and extracts a Raman spectrum for a measurement point where an intensity of the reference signal is at or above a reference intensity.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: August 11, 2020
    Assignee: HITACHI LTD.
    Inventors: Kakuro Hirai, Manabu Shiozawa, Takao Watanabe
  • Patent number: 10386304
    Abstract: The invention is directed to a light measuring apparatus which is configured to generate broadband light from a laser beam emitted from a light source, the broadband light having a broader band than that of the laser beam, to divide the broadband light into a long wavelength component and a short wavelength component, to perform CARS measurement using the long wavelength component, and to perform fluorescence observation using the short wavelength component.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: August 20, 2019
    Assignee: Hitachi, Ltd.
    Inventor: Kakuro Hirai
  • Publication number: 20190154583
    Abstract: The invention is directed to a light measuring apparatus which is configured to generate broadband light from a laser beam emitted from a light source, the broadband light having a broader band than that of the laser beam, to divide the broadband light into a long wavelength component and a short wavelength component, to perform CARS measurement using the long wavelength component, and to perform fluorescence observation using the short wavelength component.
    Type: Application
    Filed: October 18, 2018
    Publication date: May 23, 2019
    Inventor: Kakuro HIRAI
  • Publication number: 20180348138
    Abstract: In multicolor Coherent anti-Stokes Raman Scattering, a fingerprint region is a region densely filled with signals, and information about an intensity or spatial distribution of the signals is important for cell analysis. However, when laser power was increased due to the low signal intensity, there was a problem that cells were damaged. Thus, the present invention was configured such that the number of pulses of laser light emitted from a short pulse laser light source was changed by a pulse modulator. Accordingly, damage to the cells can be suppressed without significant reduction in signal intensity.
    Type: Application
    Filed: November 24, 2015
    Publication date: December 6, 2018
    Inventors: Manabu SHIOZAWA, Kakuro HIRAI
  • Publication number: 20180128748
    Abstract: Exemplary embodiments of the present disclosure relate to providing an optical apparatus that is capable of acquiring representative Raman spec trams with high reliability from hyper spectrum images of samples. An optical apparatus according to this disclosure: receives a specifying input that specifies a specific Raman spectrum bandwidth as a reference signal; and extracts a Raman spectrum for a measurement point where an intensity of the reference signal is at or above a reference intensity.
    Type: Application
    Filed: October 24, 2017
    Publication date: May 10, 2018
    Applicant: HITACHI, LTD.
    Inventors: Kakuro HIRAI, Manabu SHIOZAWA, Takao WATANABE