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.:

US 6758999 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 06, 2004

Filed:

Jul. 30, 2002
Applicant:
Inventors:

Hideharu Kawai, Nagoya, JP;

Toru Matsuzaki, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/514 ; B29C 7/074 ; B29C 7/078 ;
U.S. Cl.
CPC ...
B29C 4/514 ; B29C 7/074 ; B29C 7/078 ;
Abstract

A method of forming a magnetic body, alternative to a ferrite core, on a printed circuit board is provided. A printed circuit board is set in a mold and injection molding is conducted. The mold comprises a fixed plate, an intermediate plate and a movable plate. A cavity in the intermediate plate is filled with a melted material (i.e., mixture of resin and magnetic filler) supplied via a sprue and a runner. A cavity in the movable plate is also filled with the material supplied to the cavity in the intermediate plate through a hole in the printed circuit board. When a magnetic body for noise control is directly injection molded onto the printed circuit board in such a way, no gap appears between the magnetic body and the printed circuit board. As a result, the magnetic body functions well as desired.


Find Patent Forward Citations

Kawai, Hideharu. (2004). Forming method of magnetic body and printed circuit board (U.S. Patent No. 6758999). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6758999

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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