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:
Jul. 03, 2001
Filed:
Oct. 01, 1999
Akira Kanazawa, Tokyo, JP;
Noriyuki Murata, Yokohama, JP;
Toshiharu Saito, Yokohama, JP;
Harumi Aoki, Sagamihara, JP;
Akira Nakatsuka, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An ignition coil device, which is mounted in a plug hole of an internal combustion engine, comprises a primary coil,wound to have a first diameter, a secondary coil,wound on a bobbin,A and disposed inside the primary coil,, an iron core,disposed inside the bobbin,A, and a shielding case,disposed around the primary coil,, a gap between the primary coil,and the secondary coil,being filled with an insulating resin,. The primary coil,is made bobbinless so as to secure and increase the withstand voltages of the primary coil and the secondary coil.