Granted Patent
Utility
US 5,622,559 · App. 08/069,728
Method of preparing compound semiconductor
Inventors:
Hideki Goto, Katsushi Fujii, Kenji Shimoyama
Patented Case
View Patent ↗
Granted: Apr 22, 1997
Filed: Jun 1, 1993
Inventors
Hideki Goto
Katsushi Fujii
Kenji Shimoyama
Assignee (at issue)
MITSUBISHI CHEMICAL 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.