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:
Mar. 27, 2012
Filed:
Dec. 13, 2006
Noboru Takada, Kanagawa, JP;
Gentarou Irisawa, Kanagawa, JP;
Noboru Takada, Kanagawa, JP;
Gentarou Irisawa, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A dome cover () is manufactured by injection molding by steps of: forming a cavity () having the shape of the dome cover () between an upper mold () and a lower mold () for an injection molding die (), providing a gate port () for injecting melt resin at a position (of the upper mold ()) corresponding to the zenithal portion () of the dome cover (), and injecting the melt resin into the cavity () through the gate port (). The resin injected from the center portion (the portion corresponding to the zenithal portion () of the dome cover ()) of the cavity () flows uniformly toward the circumference of the cavity (). Therefore, variations in pressure and temperature of the resin in the cavity () are restrained and, consequently, molding irregularity of the manufactured dome cover () is restrained. According to the method of manufacturing the dome cover as described above, generation of the partial molding irregularity on the manufactured dome cover is restrained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile