Granted Patent
Utility
US 6,198,197 · App. 09/499,467
Surface acoustic wave element and electronic circuit using the same
Inventors:
Kazuhiko Yamanouchi, Naohiro Kuze, Yoshihiko Shibata, Yasuhito Kanno
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Feb 7, 2000
Inventors
Kazuhiko Yamanouchi
Naohiro Kuze
Yoshihiko Shibata
Yasuhito Kanno
Assignees (at issue)
ASAHI KASEI KOGYO CO., LTD.
Kazuhiko Yamanouchi
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.