Granted Patent
Utility
US 6,449,339 · App. 09/880,129
Rotary anode type X-ray tube and X-ray tube apparatus provided with the same
Inventor:
Hiroto Yasutake
Patented Case
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Granted: Sep 10, 2002
Filed: Jun 14, 2001
Inventor
Hiroto Yasutake
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.