Granted Patent
Utility
US 4,306,164 · App. 05/969,376
Pulse motor
Inventors:
Hisayasu Itoh, Hiroshi Sakai, Rokuro Homma, Munetada Kazama
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: Dec 14, 1978
Inventors
Hisayasu Itoh
Hiroshi Sakai
Rokuro Homma
Munetada Kazama
Assignees (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
Nippon Telegraph and Telephone Public 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.