Granted Patent
Utility
US 6,151,187 · App. 09/016,873
Disk unit, a servo track write system and a servo track write method
Inventor:
Yoshinori Ogawa
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Jan 30, 1998
Inventor
Yoshinori Ogawa
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.