Granted Patent
Utility
US 5,080,873 · App. 07/521,683
Apparatus for growing crystals
Inventors:
Naoki Ono, Michio Kida, Yoshiaki Arai, Kensho Sahira
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: May 10, 1990
Inventors
Naoki Ono
Michio Kida
Yoshiaki Arai
Kensho Sahira
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.