The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 1987
Filed:
May. 29, 1985
Youichirou Taki, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A first npn transistor 4 becomes conductive when its input is at a first potential, and non-conductive when the input signal is at a second potential. A second npn transistor 6 is connected between an output terminal 7 and a low potential source 8; the base of the second transistor is connected to the collector of the first transistor. A Darlington circuit consists of third and fourth npn transistors 9 and 16a. The base of the third transistor is connected to the collector of the first transistor, and the collector of the third transistor 9 is connected to a high potential source 3. The emitter of the fourth transistor 16a is connected to the output terminal 7. The anode of a Schottky barrier diode 16b is connected to the base of the fourth transistor 16a, and the cathode of the Schottky barrier diode 16b is connected to the collector of the fourth transistor 16a.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile