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.

Date of Patent:
Oct. 22, 2019

Filed:

Oct. 13, 2017
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;

Inventor:

Kazuyuki Sasaki, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 25/72 (2006.01); G01J 5/08 (2006.01); B22D 19/08 (2006.01); H01L 23/36 (2006.01);
U.S. Cl.
CPC ...
G01N 25/72 (2013.01); B22D 19/08 (2013.01); G01J 5/0806 (2013.01); H01L 23/36 (2013.01);
Abstract

An inspection method for a heatsink according to the present disclosure includes a measurement preparation step of placing the heatsink in a place where radiated-heat quantities can be measured by first and second thermal sensors, each of the first and second thermal sensors including a temperature sensor and a heat-concentrating mirror with a heat-receiving surface curved in a concave shape, the first and second thermal sensors being disposed in different places in a state where a heat-receiving line is inclined from a direction in which the fin protrudes by a predetermined angle, a measurement step of acquiring first and second radiated-heat quantities from the first and second thermal sensors, respectively, and a determination step of determining that a coating state of the coating is fine when a total value of the first and second radiated-heat quantities is larger than a predetermined range defined in advance.


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