Granted Patent
Utility
US 4,963,891 · App. 07/332,890
Planar antenna
Inventors:
Yoshiki Aoyagi, Atsushi Murakami, Mamoru Nakada, Mitsunori Ajiki, Shigeru Suzuki
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Sep 29, 1987
Inventors
Yoshiki Aoyagi
Atsushi Murakami
Mamoru Nakada
Mitsunori Ajiki
Shigeru Suzuki
Assignee (at issue)
Mitsubishi Kasei Corporation
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.