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:
Dec. 25, 2001
Filed:
Feb. 25, 2000
Kohsaku Ichikawa, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The present invention is composed of: positive and negative control power sources P and N, first and second semiconductor device groups A and B in which a plurality of semiconductor devices,and,and also,and,are series-connected to these positive and negative control power sources P and N, switching signal source,that supplies ON/OFF control signals to semiconductor devices,and,and also,and,of these first and second semiconductor device groups A and B, and delay circuits,and,that delay for a specified time the ON/OFF control signals supplied to any one of semiconductor devices,and,and also,and,of first or second semiconductor device groups A and B from this switching signal source