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:
Apr. 19, 2005
Filed:
Jul. 30, 2001
Yuriko Nobuhara, Tokyo, JP;
Naoki Kimura, Tokyo, JP;
Yoshio Nakamura, Tokyo, JP;
Satoru Isogai, Tokyo, JP;
Yuriko Nobuhara, Tokyo, JP;
Naoki Kimura, Tokyo, JP;
Yoshio Nakamura, Tokyo, JP;
Satoru Isogai, Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
The physical property data of the object to be heated, set temperatures of heaters and blowers are provided to a reflow apparatus, and view factor setting data for determining the view factor of the surface-mounted circuit board are input. From the input these data, the number of heaters and blowers, and the heating characteristic data peculiar to the reflow apparatus, such as the heat transfer coefficient, the speed of conveyor and the like, the view factor is simply determined, and the temperature of the surface-mounted circuit board at the time of passing through the reflow apparatus is calculated with respect to the board and parts mounted thereon, using the determined view factor.