Granted Patent
Utility
US 5,110,575 · App. 07/708,807
Process for producing sinterable crystalline aluminum nitride powder
Inventors:
Kazuo Wakimura, Masao Tanaka, Atsuhiko Hiai
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: May 31, 1991
Inventors
Kazuo Wakimura
Masao Tanaka
Atsuhiko Hiai
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.