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:
Jun. 08, 2004

Filed:

Aug. 01, 2002
Applicant:
Inventors:

Tomoya Tsunoda, Hitachi, JP;

Mitsuru Onoda, Takahagi, JP;

Shigeo Amagi, Toukai, JP;

Tatsuo Honda, Hitachinaka, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 2/704 ; H02K 3/00 ;
U.S. Cl.
CPC ...
B32B 2/704 ; H02K 3/00 ;
Abstract

In order to provide an electric machine winding having an insulating layer excellent in electric characteristics and an insulating layer of an electric machine winding excellent in electric characteristics, a high-thermal-conductivity insulating layer is formed around the peripheral portion of a winding conductor by the use of a high-thermal-conductivity insulating tape having a mica layer , a reinforcing material layer , and a high-thermal-conductivity filler layer , wherein the amount of resin of the mica layer makes up 10 wt % to 25 wt % of the total weight of the insulating material and wherein the amount of resin of the high-thermal-conductivity filler layer makes up 10 wt % to 25 wt % of the total weight of the insulating material.


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