Granted Patent
Utility
US 5,973,402 · App. 08/791,161
Metal interconnection and method for making
Inventors:
Hiroshi Shinriki, Takeshi Kaizuka, Nobuyuki Takeyasu, Tomohiro Ohta, Eiichi Kondoh, Hiroshi Yamamoto, Tomoharu Katagiri, Tadashi Nakano, Yumiko Kawano
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jan 30, 1997
Inventors
Hiroshi Shinriki
Takeshi Kaizuka
Nobuyuki Takeyasu
Tomohiro Ohta
Eiichi Kondoh
Hiroshi Yamamoto
Tomoharu Katagiri
Tadashi Nakano
Yumiko Kawano
Assignee (at issue)
Kawasaki Steel 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.