Granted Patent
Utility
US 6,091,700 · App. 09/076,224
Optical disk and optical disk fabrication method
Inventor:
Shoei Kobayashi
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: May 12, 1998
Inventor
Shoei Kobayashi
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.