Granted Patent
Utility
US 6,483,781 · App. 09/880,610
Electronic watch and drive method therefor
Inventors:
Kiyotaka Igarashi, Masao Sakuyama, Akiyoshi Murakami, Kenji Shimoda, Noritoshi Suzuki
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Jun 13, 2001
Inventors
Kiyotaka Igarashi
Masao Sakuyama
Akiyoshi Murakami
Kenji Shimoda
Noritoshi Suzuki
Assignee (at issue)
CITIZEN WATCH 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.