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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.:

US 5138221 B1

PDFFull Text
Date of Patent:
Aug. 11, 1992

Filed:

Jun. 28, 1990

Inorganically insulated heater, and cathode ray tube and air flow sensor

Applicant:
Inventors:

Toshiaki Arato, Katsuta, JP;

Toshiaki Narisawa, Hitachi, JP;

Masahisa Sobue, Mito, JP;

Nobuyuki Koganezawa, Mobara, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Antonelli, Terry, Stout & Kraus

Primary Examiner:

Donald J Yusko

Assistant Examiner:

Ashok Patel

Int. Cl.
CPC ...
H01J / ; H01J / ; G01F / ; H01C / ;
U.S. Cl.
CPC ...
313446 ; 7320422 ; 219544 ; 313344 ; 313345 ; 313355 ; 338264 ;
Abstract

The present invention relates to an inorganically insulated heater having a long life for use in air flow sensors, cathode ray tube cathode heaters etc., wherein the distribution of inorganic insulating particles of the whole insulating layer is made uniform and thereby the development of cracks and the like in the insulating layer is reduced and breaking of wire and dielectric breakdown occur with difficulty even at high temperatures and under strong vibrations.

Find Patent Forward Citations

Arato, Toshiaki. (1992). Inorganically insulated heater, and cathode ray tube and air flow sensor (U.S. Patent No. 5138221). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5138221

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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