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:
Aug. 31, 2010
Filed:
Jul. 20, 2007
Applicant:
Masaharu Sato, Kanagawa, JP;
Inventor:
Masaharu Sato, Kanagawa, JP;
Assignee:
NEC Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrostatic protective circuit includes a bipolar transistor, a bipolar transistor and an FET. The bipolar transistors and are coupled in series between a signal line and the ground (GND). The FET is configured that a source and a bulk thereof are coupled to a node N situated between the bipolar transistors, a gate is coupled to the signal line, and a drain is coupled to the power supply.