Granted Patent
Utility
US 6,479,408 · App. 09/843,725
Semiconductor device and method of manufacturing the same
Inventors:
Yoshimi Shioya, Kouichi Ohira, Kazuo Maeda
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Apr 30, 2001
Inventors
Yoshimi Shioya
Kouichi Ohira
Kazuo Maeda
Assignees (at issue)
Canon Sales Co., Inc.
Semiconductor Process Laboratory 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.