Granted Patent
Utility
US 6,686,750 · App. 10/164,641
Semiconductor integrated circuit device and IC card
Inventors:
Kazuki Watanabe, Ryouzou Yoshino, Kenji Nagai, Tatsuya Nishihara
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Jun 10, 2002
Inventors
Kazuki Watanabe
Ryouzou Yoshino
Kenji Nagai
Tatsuya Nishihara
Assignee (at issue)
HITACHI, 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.