Granted Patent
Utility
US 6,728,469 · App. 09/271,543
Video signal reproduction apparatus and method
Inventors:
Toru Okazaki, Kenji Ogawa
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Mar 18, 1999
Inventors
Toru Okazaki
Kenji Ogawa
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.