Granted Patent
Utility
US 5,362,336 · App. 07/889,852
Permanent magnet material
Inventors:
Tadashi Yamaguchi, Naomasa Kimura, Akihisa Inoue
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: May 28, 1992
Inventors
Tadashi Yamaguchi
Naomasa Kimura
Akihisa Inoue
Assignee (at issue)
Yoshida Kogyo K.K.
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.