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:
Mar. 21, 1989
Filed:
Sep. 15, 1987
Applicant:
Inventors:
Takatsugu Kitora, Itami, JP;
Youichirou Taki, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307456 ; 307458 ; 307551 ; 307566 ;
Abstract
An SBD-npn transistor is connected between an output terminal and a low potential source connection terminal and pulldown means such as a resistor and a Schottky barrier diode are inserted in series between the base of the SBD-npn transistor and the low potential source connection terminal. The pulldown means extracts leakage current appearing between the base and the collector of the SBD-npn transistor being in a nonconducting state, to prevent the leakage current from serving as base current.
Kitora, Takatsugu. (1989). Ttl circuit having improved pulldown circuit (U.S. Patent No. 4814645). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4814645
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile