Granted Patent
Utility
US 6,726,630 · App. 10/290,147
Ultrasound diagnosis apparatus for imaging with a contrast agent
Inventor:
Tetsuya Kawagishi
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Nov 8, 2002
Inventor
Tetsuya Kawagishi
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.