Granted Patent
Utility
US 5,922,411 · App. 08/793,943
Composition for forming ceramic material and process for producing ceramic material
Inventors:
Yasuo Shimizu, Hideki Matsuo, Kazuhiro Yamada
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Mar 7, 1997
Inventors
Yasuo Shimizu
Hideki Matsuo
Kazuhiro Yamada
Assignee (at issue)
Tonen 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.