Granted Patent
Utility
US 6,290,648 · App. 09/411,848
Ultrasonic diagnostic apparatus
Inventor:
Naohisa Kamiyama
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Oct 4, 1999
Inventor
Naohisa Kamiyama
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.