Patents by Inventor Takafumi HIRONAKA

Takafumi HIRONAKA 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).

  • Radiographic imaging device
    Patent number: 9883839
    Abstract: A radiation imaging apparatus includes a hydrophilized portion provided on at least a portion of an outer surface of the radiation imaging apparatus. The hydrophilized portion contains a hydrophilic polymer and an antibacterial agent. A water contact angle of a surface of the hydrophilized portion is equal to or less than 30°.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: February 6, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Fumito Nariyuki, Haruyasu Nakatsugawa, Takafumi Hironaka, Satoshi Tanaka, Michihiro Shibata, Hideo Nagasaki
  • Radiation image detecting device and radiation image capturing system
    Patent number: 9316750
    Abstract: A radiation image capturing system includes a radiation source and a radiation image detecting device. The radiation image detecting device includes a solid-state detector and a wavelength conversion layer disposed in this order from a radiation incident side. The wavelength conversion layer has a first phosphor layer having first phosphor particles dispersed in a binder, and a second phosphor layer having second phosphor particles dispersed in a binder. The average particle diameter of the second phosphor particles is smaller than that of the first phosphor particles. The first phosphor layer is disposed on the side of the solid-state detector relative to the second phosphor layer, and joined to or pressed against the solid-state detector. The first and second phosphor particles are distributed in the first and second phosphor layers, respectively, such that the weight of the binder per unit thickness is gradually decreased to the side of the solid-state detector.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: April 19, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Yuichi Hosoi, Masaharu Nakatsu, Takafumi Hironaka, Hideyuki Noumura, Haruyasu Nakatsugawa
  • RADIOGRAPHIC IMAGING DEVICE
    Publication number: 20150327823
    Abstract: A radiation imaging apparatus includes a hydrophilized portion provided on at least a portion of an outer surface of the radiation imaging apparatus. The hydrophilized portion contains a hydrophilic polymer and an antibacterial agent. A water contact angle of a surface of the hydrophilized portion is equal to or less than 30°.
    Type: Application
    Filed: July 2, 2015
    Publication date: November 19, 2015
    Inventors: Fumito NARIYUKI, Haruyasu NAKATSUGAWA, Takafumi HIRONAKA, Satoshi TANAKA, Michihiro SHIBATA, Hideo NAGASAKI
  • RADIATION IMAGE DETECTING DEVICE AND RADIATION IMAGE CAPTURING SYSTEM
    Publication number: 20140312237
    Abstract: A radiation image capturing system includes a radiation source and a radiation image detecting device. The radiation image detecting device includes a solid-state detector and a wavelength conversion layer disposed in this order from a radiation incident side. The wavelength conversion layer has a first phosphor layer having first phosphor particles dispersed in a binder, and a second phosphor layer having second phosphor particles dispersed in a binder. The average particle diameter of the second phosphor particles is smaller than that of the first phosphor particles. The first phosphor layer is disposed on the side of the solid-state detector relative to the second phosphor layer, and joined to or pressed against the solid-state detector. The first and second phosphor particles are distributed in the first and second phosphor layers, respectively, such that the weight of the binder per unit thickness is gradually decreased to the side of the solid-state detector.
    Type: Application
    Filed: July 3, 2014
    Publication date: October 23, 2014
    Inventors: Yuichi HOSOI, Masaharu NAKATSU, Takafumi HIRONAKA, Hideyuki NOUMURA, Haruyasu NAKATSUGAWA