Granted Patent
Utility
US 6,296,391 · App. 09/093,098
Hydrodynamic bearing apparatus
Inventors:
Masamichi Hayakawa, Masato Gomyo, Hideki Kanebako, Kazushi Miura
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Jun 8, 1998
Inventors
Masamichi Hayakawa
Masato Gomyo
Hideki Kanebako
Kazushi Miura
Assignee (at issue)
Sankyo Seiki Mfg. Co., 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.