Granted Patent
Utility
US 6,548,014 · App. 09/885,540
Suspension application apparatus and method for manufacturing rare earth magnet
Inventors:
Hiroyuki Kumokita, Katsumi Okayama, Tsuyoshi Wada
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Jun 21, 2001
Inventors
Hiroyuki Kumokita
Katsumi Okayama
Tsuyoshi Wada
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.