Granted Patent
Utility
US 6,744,698 · App. 10/093,343
Battery powered electronic device and control method therefor
Inventors:
Shunsuke Koyama, Teruhiko Fujisawa, Koji Kitazawa
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Mar 6, 2002
Inventors
Shunsuke Koyama
Teruhiko Fujisawa
Koji Kitazawa
Assignee (at issue)
SEIKO EPSON 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.