Granted Patent
Utility
US 6,129,787 · App. 09/212,389
Semiconductor silicon wafer, semiconductor silicon wafer fabrication method and annealing equipment
Inventors:
Naoshi Adachi, Masakazu Sano, Shinsuke Sadamitsu, Tsuyoshi Kubota
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Dec 16, 1998
Inventors
Naoshi Adachi
Masakazu Sano
Shinsuke Sadamitsu
Tsuyoshi Kubota
Assignee (at issue)
SUMITOMO METAL INDUSTRIES, 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.