Granted Patent
Utility
US 6,473,390 · App. 09/551,104
Optical disk device
Inventors:
Ichiro Sasaki, Shigehisa Miyasaka
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: Apr 18, 2000
Inventors
Ichiro Sasaki
Shigehisa Miyasaka
Assignee (at issue)
SONY COMPUTER ENTERTAINMENT 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.