Granted Patent
Utility
US 6,648,984 · App. 09/961,536
Rare earth magnet and method for manufacturing the same
Inventors:
Shigeru Takaki, Ken Makita
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Sep 24, 2001
Inventors
Shigeru Takaki
Ken Makita
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.