IP Library › Granted Patent US 5,227,790
Granted Patent Utility
US 5,227,790 · App. 07/825,384

Cascaded drive units having low power consumption

Inventors: Yasuhiro Shin, Hidetaka Kodama
Patented Case View Patent ↗
Granted: Jul 13, 1993 Filed: Jan 24, 1992
Inventors
Yasuhiro Shin
Hidetaka Kodama
Assignee (at issue)
OKI ELECTRIC INDUSTRY 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,227,790
App. No.
07/825,384
Filed
1992-01-24
Granted
1993-07-13
Kind
A