Patents by Inventor Masahiro Sakuta

Masahiro Sakuta 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).

  • Patent number: 10989642
    Abstract: Disclosed is an apparatus for and a method of mass analysis in which a presence of an accessory substance which is difficult to be analyzed can be recognized visually and clearly. The apparatus for mass analysis analyzes a sample containing a substance to be measured and includes: a display unit; a memory unit storing a theoretical peak obtained by calculation with respect to a region of a mass spectrum of the substance; a matching degree calculation unit calculating a matching degree from multiple peaks that each of the mass spectrum of the sample in the region and the theoretical peak have; a matching degree displaying control unit displaying the matching degree on the display unit; and a superimposition displaying control unit displaying the mass spectrum of the sample and the theoretical peak in a superimposed way in a manner that is consistent with a mass-to-charge ratio.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: April 27, 2021
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventor: Masahiro Sakuta
  • Patent number: 10847355
    Abstract: Disclosed is a mass analysis apparatus and method, wherein the precision of detection of a first material including a second material is improved, without enlarging the apparatus, and the measurement time is reduced. The mass analysis apparatus for analyzing a sample containing a first material including an organic compound and at least one second material including an organic compound and having a mass spectrum peak overlapping that of the first material includes a peak correction unit, wherein, when an intensity ratio (peak B)/(peak A) of peak A, not overlapping that of the first material, and peak B, overlapping that of the first material, is a correction coefficient (W), an intensity of a net peak D of the mass spectrum of the first material is calculated by subtracting W×(intensity of peak A) from an intensity of a peak C of the mass spectrum of the first material in the sample.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 24, 2020
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Masahiro Sakuta, Shin Okawa, Yoshiki Matoba
  • Patent number: 10651018
    Abstract: Disclosed is an apparatus for and a method of mass analysis, the apparatus and the method being capable of improving a detection accuracy of a target substance including impurities, without increasing a size of the apparatus, and shortening measuring time. The apparatus analyzing a sample containing a target substance and one or more interfering substances, which have a peak of a mass spectrum overlapping that of the target substance includes: a peak correction unit calculating an intensity of net peak D of the mass spectrum of the target substance by subtracting a total sum of estimated intensities of the peak B, which are calculated every predetermined time interval according to the intensity of the peak A and a nonlinear relation F between the peak A and the peak B, from an intensity of peak C of a mass spectrum of the target substance of the sample.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 12, 2020
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Masahiro Sakuta, Yoshiki Matoba
  • Patent number: 10636638
    Abstract: Disclosed is a mass analysis apparatus and method, wherein the precision of detection of a first material including a second material is improved, without enlarging the apparatus, and the measurement time is reduced. The mass analysis apparatus for analyzing a sample containing a first material including an organic compound and at least one second material including an organic compound and having a mass spectrum peak overlapping that of the first material includes a peak correction unit, wherein, when an intensity ratio (peak B)/(peak A) of peak A, not overlapping that of the first material, and peak B, overlapping that of the first material, is a correction coefficient (W), an intensity of a net peak D of the mass spectrum of the first material is calculated by subtracting W×(intensity of peak A) from an intensity of a peak C of the mass spectrum of the first material in the sample.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: April 28, 2020
    Assignee: HITATCHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Masahiro Sakuta, Shin Okawa, Yoshiki Matoba
  • Publication number: 20200118804
    Abstract: Disclosed is a mass analysis apparatus and method, wherein the precision of detection of a first material including a second material is improved, without enlarging the apparatus, and the measurement time is reduced. The mass analysis apparatus for analyzing a sample containing a first material including an organic compound and at least one second material including an organic compound and having a mass spectrum peak overlapping that of the first material includes a peak correction unit, wherein, when an intensity ratio (peak B)/(peak A) of peak A, not overlapping that of the first material, and peak B, overlapping that of the first material, is a correction coefficient (W), an intensity of a net peak D of the mass spectrum of the first material is calculated by subtracting W×(intensity of peak A) from an intensity of a peak C of the mass spectrum of the first material in the sample.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 16, 2020
    Inventors: Masahiro SAKUTA, Shin OKAWA, Yoshiki MATOBA
  • Publication number: 20190214240
    Abstract: Disclosed is an apparatus for and a method of mass analysis, the apparatus and the method being capable of improving a detection accuracy of a target substance including impurities, without increasing a size of the apparatus, and shortening measuring time. The apparatus analyzing a sample containing a target substance and one or more interfering substances, which have a peak of a mass spectrum overlapping that of the target substance includes: a peak correction unit calculating an intensity of net peak D of the mass spectrum of the target substance by subtracting a total sum of estimated intensities of the peak B, which are calculated every predetermined time interval according to the intensity of the peak A and a nonlinear relation F between the peak A and the peak B, from an intensity of peak C of a mass spectrum of the target substance of the sample.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 11, 2019
    Inventors: Masahiro SAKUTA, Yoshiki MATOBA
  • Publication number: 20190025174
    Abstract: Disclosed is an apparatus for and a method of mass analysis in which a presence of an accessory substance which is difficult to be analyzed can be recognized visually and clearly. The apparatus for mass analysis analyzes a sample containing a substance to be measured and includes: a display unit; a memory unit storing a theoretical peak obtained by calculation with respect to a region of a mass spectrum of the substance; a matching degree calculation unit calculating a matching degree from multiple peaks that each of the mass spectrum of the sample in the region and the theoretical peak have; a matching degree displaying control unit displaying the matching degree on the display unit; and a superimposition displaying control unit displaying the mass spectrum of the sample and the theoretical peak in a superimposed way in a manner that is consistent with a mass-to-charge ratio.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Inventor: Masahiro SAKUTA
  • Publication number: 20190027349
    Abstract: Disclosed is a mass analysis apparatus and method, wherein the precision of detection of a first material including a second material is improved, without enlarging the apparatus, and the measurement time is reduced. The mass analysis apparatus for analyzing a sample containing a first material including an organic compound and at least one second material including an organic compound and having a mass spectrum peak overlapping that of the first material includes a peak correction unit, wherein, when an intensity ratio (peak B)/(peak A) of peak A, not overlapping that of the first material, and peak B, overlapping that of the first material, is a correction coefficient (W), an intensity of a net peak D of the mass spectrum of the first material is calculated by subtracting W×(intensity of peak A) from an intensity of a peak C of the mass spectrum of the first material in the sample.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Inventors: Masahiro SAKUTA, Shin OKAWA, Yoshiki MATOBA
  • Publication number: 20190025123
    Abstract: A spectral data processing apparatus where a particular spectrum is displayed on a display based on 3D spectral data having time, signal intensities, and a prescribed parameter, comprising: a 2D spectrum calculating unit compiling the signal intensities for each point in time and calculating 2D spectrum of the signal intensities and the prescribed parameter, based on the spectral data; a signal-intensity-time change calculating unit calculating change in signal intensity over time for each value of the prescribed parameter, based on the spectral data; and a display controlling unit displaying, on the display, the 2D spectrum and the change in the signal intensity over time in superimposed manner using multicolor, light and shading, or change in brightness, so that the change in signal intensity over time is displayed to match the prescribed parameter of the 2D spectrum and the time changes along the axis of signal intensities of the 2D spectrum.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Inventor: Masahiro SAKUTA
  • Patent number: 9784700
    Abstract: A fluorescent X-ray analyzer includes a sample stage, an X-ray source that irradiates a sample with primary X-rays, a detector that detects secondary X-rays generated from the sample, a position adjustment mechanism that adjusts relative positions of the sample stage and the primary X-rays, an observation mechanism that obtains an observation image of the sample, and a computer having a display unit and an input unit. The computer has a function of, in response to a pointer being moved from a central region of the observation screen to a certain position by dragging the input unit while maintaining a state in which an input element of the input unit is held, moving the sample stage in a movement direction and at a movement speed corresponding to a direction and a distance of the certain position relative to the central region.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: October 10, 2017
    Assignee: Hitachi High-Tech Science Corporation
    Inventor: Masahiro Sakuta
  • Patent number: 9719949
    Abstract: A sample plate is for X-ray analysis to which a sample is fixed in performing an analysis using an X-ray fluorescent analyzer, and includes: a plate-like body that supports the sample; and a code-indicated portion provided on the plate-like body in which information on the sample is encoded and indicated.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: August 1, 2017
    Assignee: Hitachi High-Tech Science Corporation
    Inventor: Masahiro Sakuta
  • Publication number: 20160011129
    Abstract: An sample plate is for X-ray analysis to which a sample is fixed in performing an analysis using an X-ray fluorescent analyzer, and includes: a plate-like body that supports the sample; and a code-indicated portion provided on the plate-like body in which an information on the sample is encoded and indicated.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 14, 2016
    Applicant: Hitachi High-Tech Science Corporation
    Inventor: Masahiro Sakuta
  • Patent number: 9188553
    Abstract: An X-ray fluorescence analyzer includes a sample stage having an opening at an X-ray irradiation position, an X-ray source which irradiates a sample placed on the opening with a primary X-ray from below, a detector which detects an X-ray fluorescence generated from the sample, a transparent drop prevention plate supported to be advanced and retracted immediately below the opening, a drive mechanism which advances and retracts the drop prevention plate, an observation camera which observes the drop prevention plate positioned immediately below the opening, and an operation unit which processes an image of the drop prevention plate which is captured by the observation camera. The operation unit detects a foreign matter on the drop prevention plate based on an image difference between images before and after the drive mechanism moves or vibrates the drop prevention plate within an observation range of the observation camera.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: November 17, 2015
    Assignee: Hitachi High-Tech Science Corporation
    Inventors: Masahiro Sakuta, Kiyoshi Hasegawa, Yoshiki Matoba
  • Publication number: 20150268179
    Abstract: An X-ray analyzer includes a sample stage, an X-ray source that irradiates a sample with primary X-rays, a detector that detects secondary X-rays generated from the sample, a position adjustment mechanism that adjusts relative positions of the sample stage and the primary X-rays, an observation mechanism that obtains an observation image of the sample, and a computer having a display unit and an input unit. The computer has a function of, in response to a pointer being moved from a central region of the observation screen to a certain position by dragging the input unit with keeping a holding state, moving the sample stage in a movement direction and at a movement speed corresponding to a direction and a distance of the certain position relative to the central region.
    Type: Application
    Filed: February 2, 2015
    Publication date: September 24, 2015
    Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventor: Masahiro Sakuta
  • Publication number: 20140286474
    Abstract: An X-ray fluorescence analyzer includes a sample stage having an opening at an X-ray irradiation position, an X-ray source which irradiates a sample placed on the opening with a primary X-ray from below, a detector which detects an X-ray fluorescence generated from the sample, a transparent drop prevention plate supported to be advanced and retracted immediately below the opening, a drive mechanism which advances and retracts the drop prevention plate, an observation camera which observes the drop prevention plate positioned immediately below the opening, and an operation unit which processes an image of the drop prevention plate which is captured by the observation camera. The operation unit detects a foreign matter on the drop prevention plate based on an image difference between images before and after the drive mechanism moves or vibrates the drop prevention plate within an observation range of the observation camera.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Masahiro Sakuta, Kiyoshi Hasegawa, Yoshiki Matoba