Granted Patent
Utility
US 6,790,564 · App. 10/020,904
Photomask and manufacturing method of an electronic device therewith
Inventors:
Sonoko Migitaka, Tadashi Arai, Tsutomu Araki, Satoshi Momose, Osamu Yamaguchi
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Dec 19, 2001
Inventors
Sonoko Migitaka
Tadashi Arai
Tsutomu Araki
Satoshi Momose
Osamu Yamaguchi
Assignee (at issue)
Renesas Technology 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.