Granted Patent
Utility
US 6,566,988 · App. 09/781,692
Stacked type dielectric resonator
Inventors:
Yasuhiko Muzutani, Takami Hirai, Kazuyuki Mizuno, Takeshi Noguchi
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Feb 12, 2001
Inventors
Yasuhiko Muzutani
Takami Hirai
Kazuyuki Mizuno
Takeshi Noguchi
Assignees (at issue)
NGK INSULATORS, LTD.
Soshin Electric 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.