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:
Nov. 09, 1999
Filed:
Jun. 10, 1998
Applicant:
Inventors:
Fumiaki Nakao, Minato-ku, JP;
Satoshi Ohta, Minato-ku, JP;
Shinji Watanabe, Minato-ku, JP;
Tetsuya Suzuki, Minato-ku, JP;
Mikio Kitaoka, Minato-ku, JP;
Assignee:
FDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336200 ; 336232 ; 336173 ;
Abstract
A high frequency sheet-type transformer coil structure capable of minimizing eddy current generated by parallel winding and raising power conversion efficiency when the high frequency sheet-type transformer uses sheet-like coils arranged such that a coil on a first surface and a coil on a second surface have a reverse winding order.