19 Utility Patents
#648 in Nagoya
#39,277 in Japan
#181,667 in the World
Forward Citations = 190
Company Filing History:

Nkg Spark Plug Co., Ltd.
501 Ngk Spark Plug Co. Ltd.
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#648 in Nagoya
#39,277 in Japan
#181,667 in the World
Company Filing History:

Get your Inventor Badge Today