Patents by Inventor Atsushi Hamanaka

Atsushi Hamanaka 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).

  • Rotating anode X-ray tube and X-ray generator
    Patent number: 7197117
    Abstract: A coolant passage is formed inside the rotary shaft while an air passage is formed inside the casing. A mechanical seal is arranged between the coolant passage and the air passage. Leakage cooling water, which has leaked in the form of vapor from the mechanical seal, is relegated radially outwardly along with air by the action of a rotary vane, which is disposed in the air passage, and finally flows out of an air outlet. A coolant sensor may be provided to early detect the leakage water.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: March 27, 2007
    Assignee: Rigaku Corporation
    Inventors: Masataka Sakata, Tomohiro Chaki, Masaru Okazaki, Yuji Kusaka, Shiro Umegaki, Atsushi Hamanaka, Masahiro Nonoguchi
  • Rotating anode X-ray tube and X-ray generator
    Publication number: 20060013364
    Abstract: A coolant passage is formed inside the rotary shaft while an air passage is formed inside the casing. A mechanical seal is arranged between the coolant passage and the air passage. Leakage cooling water, which has leaked in the form of vapor from the mechanical seal, is relegated radially outwardly along with air by the action of a rotary vane, which is disposed in the air passage, and finally flows out of an air outlet. A coolant sensor may be provided to early detect the leakage water.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 19, 2006
    Applicant: Rigaku Corporation
    Inventors: Masataka Sakata, Tomohiro Chaki, Masaru Okazaki, Yuji Kusaka, Shiro Umegaki, Atsushi Hamanaka, Masahiro Nonoguchi