Granted Patent
Utility
US 6,756,010 · App. 10/166,250
Method and apparatus for producing compact of rare earth alloy powder and rare earth magnet
Inventors:
Tsutomu Harada, Hitoshi Morimoto, Atsuo Tanaka
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Jun 11, 2002
Inventors
Tsutomu Harada
Hitoshi Morimoto
Atsuo Tanaka
Assignee (at issue)
Sumitomo Special Metals 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.