Granted Patent
Utility
US 6,793,124 · App. 10/239,556
Diffusion-joined target assemly of high-purity cobalt target and copper alloy backing plate and production method therefor
Inventors:
Kazushige Takahashi, Hirohito Miyashita
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Sep 23, 2002
Inventors
Kazushige Takahashi
Hirohito Miyashita
Assignee (at issue)
Nikko-Materials Co., Ltd.
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.