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:
Feb. 09, 2021
Filed:
May. 26, 2015
Applicant:
Nitto Denko Corporation, Ibaraki, JP;
Inventors:
Youzou Yano, Osaka, JP;
Kou Uemura, Osaka, JP;
Assignee:
NITTO DENKO CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 81/26 (2006.01); H05K 5/02 (2006.01); H05K 5/04 (2006.01);
U.S. Cl.
CPC ...
H05K 5/0213 (2013.01); B65D 81/263 (2013.01); H05K 5/04 (2013.01);
Abstract
A ventilation structure includes a metal housing and a ventilation member. The metal housing is a housing that requires ventilation, and has a ventilation hole and a hole-surrounding portion. The ventilation hole is covered by the ventilation member. The hole-surrounding portion defining the periphery of the ventilation hole has been subjected to an alumite treatment, a treatment for forming a chemical conversion coating formed by a trivalent chromium compound, a chromium-plating-on-aluminum treatment, or an oil-repellent treatment.