Granted Patent
Utility
US 6,008,965 · App. 09/039,009
Disk drive with rectification wall for circulation filter and filter unit therefor
Inventors:
Mitsuhiro Izumi, Tomoo Sukagawa, Takeshi Ohyama, Keiji Aruga, Kazuhiro Suzuki
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Mar 13, 1998
Inventors
Mitsuhiro Izumi
Tomoo Sukagawa
Takeshi Ohyama
Keiji Aruga
Kazuhiro Suzuki
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.