Granted Patent
Utility
US 6,416,934 · App. 09/605,658
Manufacturing method of a surface acoustic wave device
Inventor:
Masao Yamagishi
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Jun 28, 2000
Inventor
Masao Yamagishi
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.