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:
Dec. 21, 1999

Filed:

Jun. 05, 1998
Applicant:
Inventors:

Toshiki Shirahata, Nakajo-machi, JP;

Masayuki Horiuchi, Nakajo-machi, JP;

Katsutoshi Inagaki, Niigata, JP;

Takayuki Yamazaki, Niigata-ken, JP;

Koji Yamanaka, Toyosaka, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336212 ; 336210 ; 336213 ; 336216 ; 336234 ;
Abstract

An amorphous transformer prevents deformation or deflection caused by the repulsion force between an outer coil and an inner coil and prevents formation of a one-turn-current through a reinforcement member and a coil frame. The amorphous transformer includes amorphous cores, an outer coil and an inner coil, a coil frame and a reinforcement member. The reinforcement member prevents the amorphous core from being deformed inward by the electromagnetic force of the coil, and the frame member and the reinforcement member prevents formation of an electrical closed-loop. Accordingly, the amorphous transformer core is protected from being damaged.


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