Granted Patent
Utility
US 6,336,899 · App. 09/390,300
Ultrasonic diagnosis apparatus
Inventor:
Nobuo Yamazaki
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Sep 3, 1999
Inventor
Nobuo Yamazaki
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.