Granted Patent
Utility
US 5,434,695 · App. 08/048,185
Dynamic pressure bearing and rotary polygon mirror device with the bearing
Inventors:
Susumu Saito, Junshin Sakamoto, Makoto Kurosawa, Takahiro Kikuchi, Satoru Wada, Kenichi Kugai
Patented Case
View Patent ↗
Granted: Jul 18, 1995
Filed: Apr 20, 1993
Inventors
Susumu Saito
Junshin Sakamoto
Makoto Kurosawa
Takahiro Kikuchi
Satoru Wada
Kenichi Kugai
Assignee (at issue)
Hitachi Koki 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.