Granted Patent
Utility
US 5,873,829 · App. 08/790,434
Diagnostic ultrasound system using harmonic echo imaging
Inventors:
Naohisa Kamiyama, Yoshitaka Mine
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Jan 29, 1997
Inventors
Naohisa Kamiyama
Yoshitaka Mine
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.