Granted Patent
Utility
US 6,452,879 · App. 09/772,155
Optical storage apparatus
Inventors:
Wataru Tsukahara, Shigenori Yanagi, Toru Ikeda, Masatsugu Nishida
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Jan 29, 2001
Inventors
Wataru Tsukahara
Shigenori Yanagi
Toru Ikeda
Masatsugu Nishida
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.