Granted Patent
Utility
US 6,113,688 · App. 09/164,375
Process for producing single crystals
Inventors:
Souroku Kawanishi, Makoto Itou
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Oct 1, 1998
Inventors
Souroku Kawanishi
Makoto Itou
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.