Granted Patent
Utility
US 5,428,485 · App. 07/870,063
Video tape recorder with PCM audio recording with device for detecting irregularities in the video signal
Inventors:
Takuya Tsushima, Seiji Higurashi
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Apr 17, 1992
Inventors
Takuya Tsushima
Seiji Higurashi
Assignee (at issue)
Victor Company of Japan, 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.