Granted Patent
Utility
US 6,284,041 · App. 09/376,466
Process for growing a silicon single crystal
Inventors:
Ken Hamada, Hiroyuki Tanabe
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Aug 18, 1999
Inventors
Ken Hamada
Hiroyuki Tanabe
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.