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:
Oct. 20, 2009
Filed:
Aug. 24, 2006
Yoshitaka Nagao, Omihachiman, JP;
Hiroshi Ibaragi, Higashiomi, JP;
Yutaka Ikeda, Higashiomi, JP;
Kazuto Miyagawa, Kusatsu, JP;
Yoshiaki Abe, Higashiomi, JP;
Yoshitaka Nagao, Omihachiman, JP;
Hiroshi Ibaragi, Higashiomi, JP;
Yutaka Ikeda, Higashiomi, JP;
Kazuto Miyagawa, Kusatsu, JP;
Yoshiaki Abe, Higashiomi, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
In a method for sorting PTC elements having different resistance-temperature characteristics, a predetermined voltage that allows a current to sufficiently decay is applied to each of PTC elements A and B, and the PTC elements are sorted on the basis of the difference between the times required for the currents passing through the PTC elements B to reach a predetermined value (e.g., 52 mA).