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:
Feb. 05, 2019
Filed:
Nov. 13, 2014
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Takahiro Mabuchi, Chiyoda-ku, JP;
Shigeyuki Yamamoto, Chiyoda-ku, JP;
Makoto Tsukiji, Chiyoda-ku, JP;
Hiroshi Sako, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-ku, JP;
Abstract
An insulating tape having a mica layer, a reinforcing layer having a filler and a fiber reinforcing material laminated on the mica layer, and a cellulose derivative layer laminated on the reinforcing layer is provided. One or more hydroxyl groups in the glucose units of the cellulose derivative are substituted with a functional group such as —CHCHOH or —(CHCHO)H (where p is any repeating number up to 50). The weight per unit area of the mica ranges from 100 g/mto 200 g/m. The filler has a maximum particle size of 100 μm or smaller and a weight per unit area ranging from 10 g/mto 50 g/m. The insulating tape is useful to form a stator coil insulating layer with high thermal conductivity, with no outflow of a filler to the exterior during production of the stator coil, and with enhanced bonding strength.