Granted Patent
Utility
US 6,221,511 · App. 09/036,855
Metal-ceramic composite substrates, producing methods thereof and brazing materials for use in such method
Inventors:
Masami Sakuraba, Masami Kimura, Masaya Takahara, Junji Nakamura
Patented Case
View Patent ↗
Granted: Apr 24, 2001
Filed: Mar 9, 1998
Inventors
Masami Sakuraba
Masami Kimura
Masaya Takahara
Junji Nakamura
Assignee (at issue)
Dowa Mining Co., Ltd.
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.