Granted Patent
Utility
US 6,421,367 · App. 09/077,221
Two-phase/four-phase modulated comb-shaped spread spectrum communication system
Inventors:
Noriyoshi Kuroyanagi, Naoki Suehiro, Toshikatsu Naitoh
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Sep 25, 1998
Inventors
Noriyoshi Kuroyanagi
Naoki Suehiro
Toshikatsu Naitoh
Assignees (at issue)
Noriyoshi Kuroyanagi
Naoki Suehiro
Toyo Communication Equipment 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.