Granted Patent
Utility
US 6,731,472 · App. 09/803,849
Suspension for disc drive
Inventors:
Hiroshi Okamoto, Koji Uozumi, Masao Hanya, Tetsuya Fujiwara, Toshio Shiigi, Kenichi Takikawa, Osamu Iriuchijima
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Mar 12, 2001
Inventors
Hiroshi Okamoto
Koji Uozumi
Masao Hanya
Tetsuya Fujiwara
Toshio Shiigi
Kenichi Takikawa
Osamu Iriuchijima
Assignees (at issue)
NHK SPRING CO., LTD.
HITACHI, LTD.
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.