Granted Patent
Utility
US 6,052,099 · App. 09/252,984
Multibeam antenna
Inventors:
Hiroaki Imaizumi, Koji Sakauchi, Shuji Hagiwara, Hirofumi Higuchi, Ryotaro Manabe
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Feb 19, 1999
Inventors
Hiroaki Imaizumi
Koji Sakauchi
Shuji Hagiwara
Hirofumi Higuchi
Ryotaro Manabe
Assignee (at issue)
Yagi Antenna Inc.
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.