Granted Patent
Utility
US 5,129,963 · App. 07/674,257
Rare earth magnet alloys with excellent hot workability
Inventors:
Viswanathan Panchanathan, Teruo Watanabe, Yasuaki Kasai, Norio Yoshikawa, Yutaka Yoshida
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Mar 25, 1991
Inventors
Viswanathan Panchanathan
Teruo Watanabe
Yasuaki Kasai
Norio Yoshikawa
Yutaka Yoshida
Assignee (at issue)
General Motors LLC
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.