Granted Patent
Utility
US 5,659,437 · App. 08/385,661
Data storage apparatus having servo control system
Inventors:
Masao Tsunekawa, Mitsuo Kamimura, Eisaku Takahashi
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Feb 7, 1995
Inventors
Masao Tsunekawa
Mitsuo Kamimura
Eisaku Takahashi
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.