Granted Patent
Utility
US 6,344,117 · App. 09/383,506
Backing plate for sputtering
Inventors:
Masatoshi Enomoto, Seiji Tasaki, Naoyuki Kawata, Takenori Hashimoto
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Aug 26, 1999
Inventors
Masatoshi Enomoto
Seiji Tasaki
Naoyuki Kawata
Takenori Hashimoto
Assignee (at issue)
Showa Denko K.K.
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.