Granted Patent
Utility
US 5,932,002 · App. 08/919,160
Seed crystals for pulling a single crystal and methods using the same
Inventor:
Teruo Izumi
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Aug 28, 1997
Inventor
Teruo Izumi
Assignee (at issue)
Sumitomo Sitix Corporation
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.