Granted Patent
Utility
US 5,575,847 · App. 08/337,474
Apparatus for producing single crystals
Inventors:
Kaoru Kuramochi, Setsuo Okamoto
Patented Case
View Patent ↗
Granted: Nov 19, 1996
Filed: Nov 8, 1994
Inventors
Kaoru Kuramochi
Setsuo Okamoto
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.