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:
Jun. 19, 2012
Filed:
Nov. 17, 2008
Takashi Naito, Ina, JP;
Akihiko Nakamura, Ina, JP;
Takashi Naito, Ina, JP;
Akihiko Nakamura, Ina, JP;
Koa Corporation, Ina-shi, Nagoya, JP;
Abstract
To provide a glazed metal film resistor device excellent in TCR characteristics with using an economical base body containing glass by reducing affection to TCR characteristics caused by glass contained in the base body. The resistor device comprises base bodycontaining glass, first protective film, which does not contain glass, formed on a surface of base body, and thick film resistorformed on first protective film. By forming first protective filmon a surface of base bodycontaining glass and insulating base bodycontaining glass against thick film resistorof ruthenium oxide as primary component, affection of glass contained in base bodyto thick film resistorof ruthenium oxide can be suppressed, and change of TCR value from original value of thick film resistor itself can be suppressed.