Patents by Inventor Taketoshi KAWAI

Taketoshi KAWAI 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).

  • Method for manufacturing alkali halide-based scintillator powder and method for manufacturing scintillator material
    Patent number: 10208246
    Abstract: An additive containing an ion as a luminescence center is added to alkali halide powder as a base material. Mechanical energy for applying an impact force, a shearing force, a shear stress, or a friction force is applied so as to grind or mix the alkali halide powder and the additive. The ion as the luminescence center is doped into the alkali halide as the base material so as to obtain alkali halide-based scintillator powder. With this process, the alkali halide-based scintillator powder can be manufactured at a room temperature in the atmospheric air without any complicated condition control or any process at a high temperature under high vacuum and a large-sized scintillator sheet can be produced.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: February 19, 2019
    Assignees: OSAKA PREFECTURE UNIVERSITY Public Corporation, YASU MEDICAL IMAGING TECHNOLOGY CO., LTD.
    Inventors: Taketoshi Kawai, Fumiaki Kunimoto
  • METHOD FOR MANUFACTURING ALKALI HALIDE-BASED SCINTILLATOR POWDER AND METHOD FOR MANUFACTURING SCINTILLATOR MATERIAL
    Publication number: 20160280992
    Abstract: An additive containing an ion as a luminescence center is added to alkali halide powder as a base material. Mechanical energy for applying an impact force, a shearing force, a shear stress, or a friction force is applied so as to grind or mix the alkali halide powder and the additive. The ion as the luminescence center is doped into the alkali halide as the base material so as to obtain alkali halide-based scintillator powder. With this process, the alkali halide-based scintillator powder can be manufactured at a room temperature in the atmospheric air without any complicated condition control or any process at a high temperature under high vacuum and a large-sized scintillator sheet can be produced.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 29, 2016
    Applicants: OSAKA PREFECTURE UNIVERSITY Public Corporation, YASU MEDICAL IMAGING TECHNOLOGY CO., LTD.
    Inventors: Taketoshi KAWAI, Fumiaki KUNIMOTO