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:
Sep. 11, 2001
Filed:
Nov. 01, 1999
Applicant:
Inventors:
Katsuaki Fukatsu, Urizura-machi, JP;
Ryoichi Kobayashi, Tokai-mura, JP;
Takashi Ito, Naka-machi, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 1/00 ;
U.S. Cl.
CPC ...
F02P 1/00 ;
Abstract
A mesh structure portion is provided at a part of a stripe structure IGBT chip, gate resistance of a respective minute IGBT is reduced and in a gate portion chip a filter is constituted by a resistor and a condenser. Under a severe environment such as an integrated ignition coil, a small size and a low cost ignitor which can use without a necessity for a protection circuit by a peripheral circuit can be provided. An ignition apparatus having IGBT which is strong against serge resistant performance and noise resistant performance can be obtained.