Granted Patent
Utility
US 4,913,745 · App. 07/171,694
Method for producing a rare earth metal-iron-boron anisotropic bonded magnet from rapidly-quenched rare earth metal-iron-boron alloy ribbon-like flakes
Inventor:
Tadakuni Sato
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Mar 22, 1988
Inventor
Tadakuni Sato
Assignee (at issue)
TOKIN CORPORATION
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.