Granted Patent
Utility
US 5,173,270 · App. 07/568,224
Monocrystal rod pulled from a melt
Inventors:
Michio Kida, Kensho Sahira, Akikuni Nozoe
Patented Case
View Patent ↗
Granted: Dec 22, 1992
Filed: Aug 16, 1990
Inventors
Michio Kida
Kensho Sahira
Akikuni Nozoe
Assignee (at issue)
MITSUBISHI MATERIALS 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.