Granted Patent
Utility
US 6,512,341 · App. 09/902,258
Apparatus and method for driving a brushless motor
Inventors:
Hideo Matsushiro, Keizo Matsui, Kazushige Narazaki, Toru Tazawa
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Jul 11, 2001
Inventors
Hideo Matsushiro
Keizo Matsui
Kazushige Narazaki
Toru Tazawa
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.