Patents by Inventor Masataka Maeyama

Masataka Maeyama 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: 9945961
    Abstract: There are provided a radiation detector capable of detecting radiation without occurrence of dead time while maintaining an exposure state in which radiation enters continuously, and an X-ray analysis apparatus and a radiation detection method using the radiation detector. A radiation detector 100 that detects radiation in synchronization with an external apparatus 200, includes: a sensor 110 that generates pulses when radiation particles are detected; a plurality of counters 140a, 140b provided so as to be able to count the pulses; and a control circuit 160 configured to switch a counter to count the pulses among the plurality of counters 140a, 140b, when receiving a synchronization signal from the external apparatus 200.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: April 17, 2018
    Assignee: RIGAKU CORPORATION
    Inventors: Takuto Sakumura, Yasukazu Nakaye, Masataka Maeyama, Kazuyuki Matsushita
  • Publication number: 20170371044
    Abstract: There are provided a radiation detector capable of detecting radiation without occurrence of dead time while maintaining an exposure state in which radiation enters continuously, and an X-ray analysis apparatus and a radiation detection method using the radiation detector. A radiation detector 100 that detects radiation in synchronization with an external apparatus 200, includes: a sensor 110 that generates pulses when radiation particles are detected; a plurality of counters 140a, 140b provided so as to be able to count the pulses; and a control circuit 160 configured to switch a counter to count the pulses among the plurality of counters 140a, 140b, when receiving a synchronization signal from the external apparatus 200.
    Type: Application
    Filed: August 18, 2017
    Publication date: December 28, 2017
    Applicant: Rigaku Corporation
    Inventors: Takuto SAKUMURA, Yasukazu NAKAYE, Masataka MAEYAMA, Kazuyuki MATSUSHITA
  • Publication number: 20150212213
    Abstract: There are provided a radiation detector capable of detecting radiation without occurrence of dead time while maintaining an exposure state in which radiation enters continuously, and an X-ray analysis apparatus and a radiation detection method using the radiation detector. A radiation detector 100 that detects radiation in synchronization with an external apparatus 200, includes: a sensor 110 that generates pulses when radiation particles are detected; a plurality of counters 140a, 140b provided so as to be able to count the pulses; and a control circuit 160 configured to switch a counter to count the pulses among the plurality of counters 140a, 140b, when receiving a synchronization signal from the external apparatus 200.
    Type: Application
    Filed: October 24, 2014
    Publication date: July 30, 2015
    Applicant: Rigaku Corporation
    Inventors: Takuto SAKUMURA, Yasukazu NAKAYE, Masataka MAEYAMA, Kazuyuki MATSUSHITA
  • Patent number: 8903040
    Abstract: An X-ray multiple spectroscopic analyzer includes an X-ray source, an optical system inputting X-rays to a single-crystal sample, a sample stage supporting the single-crystal sample, an X-ray diffraction detector, a rotation driving system that changes the angle of the X-ray diffraction detector, an X-ray diffraction measurement data storage unit, a structural analysis data analyzing unit, an energy-dispersive X-ray fluorescence detector, an X-ray fluorescence measurement data storage unit, an X-ray fluorescence analyzing unit, an X-ray fluorescence analysis data storage unit, and X-ray fluorescence analysis data acquiring unit. The structural analysis data analyzing unit analyzes the data of the crystal structure further on the basis of the analysis data of the fluorescent X-rays output from the X-ray fluorescence analysis data acquiring unit.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: December 2, 2014
    Assignee: Rigaku Corporation
    Inventors: Masataka Maeyama, Akihito Yamano
  • Patent number: 8699665
    Abstract: A wavelength-classifying type X-ray diffraction device bombards a sample with characteristic X-rays generated from an X-ray generation source, and detects characteristic X-rays diffracted by the sample using an X-ray detector. The X-ray generation source is composed of several metals of different atomic number, respective metals generating several characteristic X-rays of different wavelengths. An X-ray detector is composed of several pixels for receiving X-rays and outputting pulse signals corresponding to X-ray wavelengths. Pixels are respectively furnished with classification circuits. The classification circuits classify and output pixel output signals based on each of characteristic X-ray wavelengths. X-ray intensity is detected on a per-wavelength basis in individual pixels 12. Measurement data based on different wavelength X-rays are acquired simultaneously in just one measurement.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 15, 2014
    Assignee: Rigaku Corporation
    Inventors: Kazuyuki Matsushita, Takuto Sakumura, Yuji Tsuji, Masataka Maeyama, Kimiko Hasegawa
  • Publication number: 20120288058
    Abstract: An X-ray multiple spectroscopic analyzer includes an X-ray source, an optical system inputting X-rays to a single-crystal sample, a sample stage supporting the single-crystal sample, an X-ray diffraction detector, a rotation driving system that changes the angle of the X-ray diffraction detector, an X-ray diffraction measurement data storage unit, a structural analysis data analyzing unit, an energy-dispersive X-ray fluorescence detector, an X-ray fluorescence measurement data storage unit, an X-ray fluorescence analyzing unit, an X-ray fluorescence analysis data storage unit, and X-ray fluorescence analysis data acquiring unit. The structural analysis data analyzing unit analyzes the data of the crystal structure further on the basis of the analysis data of the fluorescent X-rays output from the X-ray fluorescence analysis data acquiring unit.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 15, 2012
    Applicant: RIGAKU CORPORATION
    Inventors: Masataka MAEYAMA, Akihito YAMANO
  • Patent number: 8300767
    Abstract: A wavelength-classifying type X-ray diffraction device bombards a sample with characteristic X-rays generated from an X-ray generation source, and detects characteristic X-rays diffracted by the sample using an X-ray detector. The X-ray generation source is composed of several metals of different atomic number, respective metals generating several characteristic X-rays of different wavelengths. An X-ray detector is composed of several pixels for receiving X-rays and outputting pulse signals corresponding to X-ray wavelengths. Pixels are respectively furnished with classification circuits. The classification circuits classify and output pixel output signals based on each of characteristic X-ray wavelengths. X-ray intensity is detected on a per-wavelength basis in individual pixels 12. Measurement data based on different wavelength X-rays are acquired simultaneously in just one measurement.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: October 30, 2012
    Assignee: Rigaku Corporation
    Inventors: Kazuyuki Matsushita, Takuto Sakumura, Yuji Tsuji, Masataka Maeyama, Kimiko Hasegawa
  • Publication number: 20120269322
    Abstract: A wavelength-classifying type X-ray diffraction device bombards a sample with characteristic X-rays generated from an X-ray generation source, and detects characteristic X-rays diffracted by the sample using an X-ray detector. The X-ray generation source is composed of several metals of different atomic number, respective metals generating several characteristic X-rays of different wavelengths. An X-ray detector is composed of several pixels for receiving X-rays and outputting pulse signals corresponding to X-ray wavelengths. Pixels are respectively furnished with classification circuits. The classification circuits classify and output pixel output signals based on each of characteristic X-ray wavelengths. X-ray intensity is detected on a per-wavelength basis in individual pixels 12. Measurement data based on different wavelength X-rays are acquired simultaneously in just one measurement.
    Type: Application
    Filed: July 3, 2012
    Publication date: October 25, 2012
    Applicant: Rigaku Corporation
    Inventors: Kazuyuki MATSUSHITA, Takuto Sakumura, Yuji Tsuji, Masataka Maeyama, Kimiko Hasegawa
  • Publication number: 20110317813
    Abstract: A wavelength-classifying type X-ray diffraction device bombards a sample with characteristic X-rays generated from an X-ray generation source, and detects characteristic X-rays diffracted by the sample using an X-ray detector. The X-ray generation source is composed of several metals of different atomic number, respective metals generating several characteristic X-rays of different wavelengths. An X-ray detector is composed of several pixels for receiving X-rays and outputting pulse signals corresponding to X-ray wavelengths. Pixels are respectively furnished with classification circuits. The classification circuits classify and output pixel output signals based on each of characteristic X-ray wavelengths. X-ray intensity is detected on a per-wavelength basis in individual pixels 12. Measurement data based on different wavelength X-rays are acquired simultaneously in just one measurement.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Applicant: Rigaku Corporation
    Inventors: Kazuyuki MATSUSHITA, Takuto Sakumura, Yuji Tsuji, Masataka Maeyama, Kimiko Hasegawa