Granted Patent
Utility
US 4,929,564 · App. 07/421,680
Method for producing compound semiconductor single crystals and method for producing compound semiconductor devices
Inventors:
Keiji Kainosho, Haruhito Shimakura, Osamu Oda
Patented Case
View Patent ↗
Granted: May 29, 1990
Filed: Oct 16, 1989
Inventors
Keiji Kainosho
Haruhito Shimakura
Osamu Oda
Assignee (at issue)
Nippon Mining Company Limited
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.