Granted Patent
Utility
US 6,249,496 · App. 09/196,098
Optical storage apparatus
Inventors:
Wataru Tsukahara, Shigenori Yanagi, Toru Ikeda
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Nov 19, 1998
Inventors
Wataru Tsukahara
Shigenori Yanagi
Toru Ikeda
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.