Granted Patent
Utility
US 5,049,541 · App. 07/382,180
Process for preparing superconductor
Inventors:
Takuya Uzumaki, Kazunori Yamanaka, Nobuo Kamehara, Koichi Niwa
Patented Case
View Patent ↗
Granted: Sep 17, 1991
Filed: Jul 19, 1989
Inventors
Takuya Uzumaki
Kazunori Yamanaka
Nobuo Kamehara
Koichi Niwa
Assignee (at issue)
Fujitsu Limited
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.