Granted Patent
Utility
US 6,607,594 · App. 10/020,574
Method for producing silicon single crystal
Inventors:
Hideki Fujiwara, Manabu Nishimoto, Isamu Miyamoto, Hiroshi Morita
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Dec 18, 2001
Inventors
Hideki Fujiwara
Manabu Nishimoto
Isamu Miyamoto
Hiroshi Morita
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.