Granted Patent
Utility
US 6,099,641 · App. 09/372,103
Apparatus for pulling a single crystal
Inventor:
Naoki Ikeda
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Aug 11, 1999
Inventor
Naoki Ikeda
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.