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:
Jan. 03, 1995
Filed:
Oct. 25, 1993
Applicant:
Inventor:
Takafumi Katsuno, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338332 ; 338313 ; 338333 ; 338272 ;
Abstract
A square chip resistor in which, when the protective glass layers are fired, a powder of an inorganic material such as alumina or the like having a greater thermal expansion coefficient than glass is mixed into glass paste to thereby adjust the thermal expansion coefficient of the protective glass layers. This makes it possible to prevent generation of any crack on the glass surface due to a stress produced by a difference between the thermal expansion coefficients of the glass layer and an alumina substrate.