Granted Patent
Utility
US 6,548,922 · App. 09/719,369
2-Pole stepper motor for timepiece
Inventors:
Shigeyuki Takahashi, Takanori Nanya, Takayasu Machida, Kazuo Suzuki, Takeaki Shimanouchi
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Dec 11, 2000
Inventors
Shigeyuki Takahashi
Takanori Nanya
Takayasu Machida
Kazuo Suzuki
Takeaki Shimanouchi
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.