Granted Patent
Utility
US 5,970,032 · App. 08/625,289
Focus control method, and optical disk unit with focus offset correction
Inventors:
Toru Ikeda, Akira Minami
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Apr 1, 1996
Inventors
Toru Ikeda
Akira Minami
Assignee (at issue)
Fujitsu Limited
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.