US Patent 7982575 Insulating member

Patent 7982575 was granted and assigned to Denso on July, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Denso

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7982575

Date of Patent

July 19, 2011

Patent Application Number

11957556

Date Filed

December 17, 2007

Patent Primary Examiner

‌

Tuyen Nguyen

Patent abstract

An ignition coil, which includes a primary coil and a secondary coil, has an electrical insulating member. The electrical insulating member includes an insulating material being a base material. The electrical insulating member further includes a reactive agent being an additive added to the insulating material for causing dehydration-decomposition, so as to enhance durability when being applied with high voltage. Alternatively, a reactive agent is coated on a surface of the electrical insulating body for causing dehydration-decomposition, so as to enhance durability when being applied with high voltage.