Granted Patent
Utility
US 6,764,437 · App. 09/969,807
Centrifuge with rotor having identification elements arranged along the circumference of a circle whose center coincides with the rotor's axis of rotation
Inventors:
Kenichi Tetsu, Masahiro Inaniwa, Yoshitaka Niinai, Hiroyuki Takahashi
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Oct 4, 2001
Inventors
Kenichi Tetsu
Masahiro Inaniwa
Yoshitaka Niinai
Hiroyuki Takahashi
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.