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:
May. 16, 1995
Filed:
Mar. 18, 1993
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; G01F / ; G01F / ;
U.S. Cl.
CPC ...
731182 ; 732025 ; 7320411 ; 7386102 ;
Abstract
An exothermic resistor type air flow detector according to the invention is compact and requires no special radiation structure. A control circuit comprised of a transistor T and a differential amplifier are formed with an exothermal resistor Rh on an insulated substrate 2, which is placed in an air passage in which air current is to be measured.
Uchiyama, Kaoru. (1995). Air flow detector for engine control unit (U.S. Patent No. 5415029). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5415029
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile