Patents by Inventor Keiichirou SATO

Keiichirou SATO 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: 10641910
    Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yasuhisa Kaneko, Haruyasu Nakatsugawa, Keiichirou Sato, Makoto Kitada, Kei Miura
  • Publication number: 20190049595
    Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 14, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yasuhisa KANEKO, Haruyasu NAKATSUGAWA, Keiichirou SATO, Makoto KITADA, Kei MIURA
  • Patent number: 10126435
    Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: November 13, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Yasuhisa Kaneko, Haruyasu Nakatsugawa, Keiichirou Sato, Makoto Kitada, Kei Miura
  • Publication number: 20160018534
    Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.
    Type: Application
    Filed: September 29, 2015
    Publication date: January 21, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Yasuhisa KANEKO, Haruyasu NAKATSUGAWA, Keiichirou SATO, Makoto KITADA, Kei MIURA
  • Patent number: 9176239
    Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: November 3, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yasuhisa Kaneko, Haruyasu Nakatsugawa, Keiichirou Sato, Makoto Kitada, Kei Miura
  • Patent number: 8872115
    Abstract: A radiological image conversion panel 2 provided with a support 11 and a phosphor 18 which is formed on the support and contains a fluorescent material that emits fluorescence by radiation exposure. The phosphor includes a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36. The columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a porosity at the columnar section side of the non-columnar section is higher than a porosity at the support side of the non-columnar section.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: October 28, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Yasuhisa Kaneko, Haruyasu Nakatsugawa, Keiichirou Sato, Makoto Kitada, Kei Miura
  • Patent number: 8754375
    Abstract: The device includes: a scintillator 200 configured to emit fluorescence by irradiation of radiation, and a photodetector 40 configured to detect the fluorescence emitted from the scintillator 200 as an electrical signal, wherein the scintillator 200 includes a columnar section 20 which is disposed at a rear side of the photodetector 40 in a travel direction of the radiation and at the same time is formed by a group of columnar crystals 20A obtained through columnar growth of crystals of a fluorescent material, and a first non-columnar section 23 which is provided at the photodetector 40 side of the columnar section 20.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: June 17, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Haruyasu Nakatsugawa, Yasuhisa Kaneko, Keiichirou Sato, Makoto Kitada, Kei Miura
  • Publication number: 20140124674
    Abstract: A radiological image conversion panel 2 provided with a support 11 and a phosphor 18 which is formed on the support and contains a fluorescent material that emits fluorescence by radiation exposure. The phosphor includes a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36. The columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a porosity at the columnar section side of the non-columnar section is higher than a porosity at the support side of the non-columnar section.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Yasuhisa KANEKO, Haruyasu Nakatsugawa, Keiichirou Sato, Makoto Kitada, Kei Mura
  • Patent number: 8610078
    Abstract: The X-ray image detection apparatus 1 includes: a scintillator panel 10 including a phosphor 200 that is formed on a support 101 and emits fluorescence by irradiation of radiation; and a photodetector 40 that detects the fluorescence emitted by the phosphor as an electric signal, wherein the phosphor 200 includes a columnar section 20 formed by growing crystals of a fluorescent material in a columnar shape, and a non-columnar section 25 provided between the columnar section 20 and the support 101 and has a porosity lower than that of the columnar section 20, and the scintillator panel 10 is disposed at the rear side of the photodetector 40 in a radiation travelling direction, and in the phosphor 200, the non-columnar section 25 is disposed at a side opposite to the photodetector side.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: December 17, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Yasuhisa Kaneko, Haruyasu Nakatsugawa, Keiichirou Sato, Makoto Kitada, Kei Miura
  • Publication number: 20130292572
    Abstract: A radiological image conversion panel 2 provided with a support 11 and a phosphor 18 which is formed on the support and contains a fluorescent material that emits fluorescence by radiation exposure. The phosphor includes a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36. The columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a porosity at the columnar section side of the non-columnar section is higher than a porosity at the support side of the non-columnar section.
    Type: Application
    Filed: June 27, 2013
    Publication date: November 7, 2013
    Inventors: Yasuhisa KANEKO, Haruyasu NAKATSUGAWA, Keiichirou SATO, Makoto KITADA, Kei MIURA
  • Publication number: 20130284933
    Abstract: The device includes: a scintillator 200 configured to emit fluorescence by irradiation of radiation, and a photodetector 40 configured to detect the fluorescence emitted from the scintillator 200 as an electrical signal, wherein the scintillator 200 includes a columnar section 20 which is disposed at a rear side of the photodetector 40 in a travel direction of the radiation and at the same time is formed by a group of columnar crystals 20A obtained through columnar growth of crystals of a fluorescent material, and a first non-columnar section 23 which is provided at the photodetector 40 side of the columnar section 20.
    Type: Application
    Filed: June 25, 2013
    Publication date: October 31, 2013
    Inventors: Haruyasu NAKATSUGAWA, Yasuhisa KANEKO, Keiichirou SATO, Makoto KITADA, Kei MIURA
  • Publication number: 20130284935
    Abstract: The X-ray image detection apparatus 1 includes: a scintillator panel 10 including a phosphor 200 that is formed on a support 101 and emits fluorescence by irradiation of radiation; and a photodetector 40 that detects the fluorescence emitted by the phosphor as an electric signal, wherein the phosphor 200 includes a columnar section 20 formed by growing crystals of a fluorescent material in a columnar shape, and a non-columnar section 25 provided between the columnar section 20 and the support 101 and has a porosity lower than that of the columnar section 20, and the scintillator panel 10 is disposed at the rear side of the photodetector 40 in a radiation travelling direction, and in the phosphor 200, the non-columnar section 25 is disposed at a side opposite to the photodetector side.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Yasuhisa KANEKO, Haruyasu NAKATSUGAWA, Keiichirou SATO, Makoto KITADA, Kei MIURA
  • Publication number: 20130284934
    Abstract: A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Yasuhisa KANEKO, Haruyasu NAKATSUGAWA, Keiichirou SATO, Makoto KITADA, Kei MIURA