IP Library Granted Patent US 5,153,500
Granted Patent Utility
US 5,153,500 · App. 07/746,913

Constant-voltage generation circuit

Inventors: Kazushige Yamamoto, Hiroyuki Tokutomi
Patented Case View Patent ↗
Granted: Oct 6, 1992 Filed: Aug 19, 1991
Inventors
Kazushige Yamamoto
Hiroyuki Tokutomi
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 5,153,500
App. No.
07/746,913
Filed
1991-08-19
Granted
1992-10-06
Kind
A