Granted Patent
Utility
US 6,197,441 · App. 09/124,889
Cubic nitride semiconductor device and fabrication method of the same
Inventors:
Masaaki Yuri, Tetsuzo Ueda, Takaaki Baba
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Jul 30, 1998
Inventors
Masaaki Yuri
Tetsuzo Ueda
Takaaki Baba
Assignee (at issue)
Matsushita Electronics 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.