Granted Patent
Utility
US 6,333,969 · App. 09/423,615
X-ray tube
Inventor:
Masaji Kujirai
Patented Case
View Patent ↗
Granted: Dec 25, 2001
Filed: Dec 30, 1999
Inventor
Masaji Kujirai
Assignee (at issue)
Kabushiki Kaisha Toshiba
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.