Granted Patent
Utility
US 4,460,413 · App. 06/331,612
Method of patterning device regions by oxidizing patterned aluminum layer
Inventors:
Kazuo Hirata, Masatoshi Oda
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Dec 17, 1981
Inventors
Kazuo Hirata
Masatoshi Oda
Assignee (at issue)
Nippon Telegraph and Telephone Public 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.