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. 15, 2005
Filed:
Oct. 01, 2003
Izumi Watanabe, Hitachinaka, JP;
Naoki Saito, Tokai-mura, JP;
Masayuki Kozawa, Hitachinaka, JP;
Keiichi Nakada, Tokyo, JP;
Kei Ueyama, Hitachinaka, JP;
Izumi Watanabe, Hitachinaka, JP;
Naoki Saito, Tokai-mura, JP;
Masayuki Kozawa, Hitachinaka, JP;
Keiichi Nakada, Tokyo, JP;
Kei Ueyama, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Car Engineering Co., Ltd., Hitachinaka, JP;
Abstract
Resin members, on the surfaces of which metal films are formed, are used for; an auxiliary air passage provided in a main air passage, in which a sensor element of a physical quantity sensor such as an air flow sensor, an intake-air temperature sensor, etc., is situated; a housing; and so forth; in order to decrease both the thermal conductivity and the emissivity of those components to respective small values, whereby the temperature increase of the sensor due to both the heat conduction and the heat radiation can be suppressed.