Granted Patent
Utility
US 6,084,643 · App. 08/897,976
Receiving equipment and method of using the same
Inventors:
Yuriko Kishtaka, Tetsuya Kohno, Naoki Kigawa, Toshiro Ozawa, Mika Ito, Kazuhiro Akaike
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Jul 21, 1997
Inventors
Yuriko Kishtaka
Tetsuya Kohno
Naoki Kigawa
Toshiro Ozawa
Mika Ito
Kazuhiro Akaike
Assignee (at issue)
SONY GROUP 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.