Granted Patent
Utility
US 6,817,021 · App. 09/691,403
Disk device and guide member
Inventors:
Shigehisa Miyasaka, Kazusato Tagawa, Sachiko Inoue
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Oct 18, 2000
Inventors
Shigehisa Miyasaka
Kazusato Tagawa
Sachiko Inoue
Assignee (at issue)
SONY COMPUTER ENTERTAINMENT INC.
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.