Granted Patent
Utility
US 5,456,815 · App. 08/364,073
Sputtering targets of high-purity aluminum or alloy thereof
Inventors:
Hideaki Fukuyo, Susumu Sawada, Masaru Nagasawa
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Dec 27, 1994
Inventors
Hideaki Fukuyo
Susumu Sawada
Masaru Nagasawa
Assignee (at issue)
Japan Energy 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.