Granted Patent
Utility
US 5,774,432 · App. 08/842,936
Focussing system and methods for multi- track optical disk apparatus
Inventors:
Amir Alon, Jacob Finkelstein, Itzhak Katz, Michael Naor, Shlomo Shapira
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Apr 25, 1997
Inventors
Amir Alon
Jacob Finkelstein
Itzhak Katz
Michael Naor
Shlomo Shapira
Assignee (at issue)
Zen Research N.V.
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.