Granted Patent
Utility
US 6,642,607 · App. 10/061,365
Semiconductor device
Inventors:
Teruhito Ohnishi, Takeshi Takagi, Akira Asai, Taizo Fujii, Mitsuo Sugiura, Yoshihisa Minami
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Feb 4, 2002
Inventors
Teruhito Ohnishi
Takeshi Takagi
Akira Asai
Taizo Fujii
Mitsuo Sugiura
Yoshihisa Minami
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.