44 Utility Patents
#28 in Aichi
#10,050 in Japan
#48,540 in the World
Forward Citations = 555
Company Filing History:

Howa Plastics Co., Ltd.
Kasei Kogyo, Co., Ltd.
4. 1 out of 6
Nkg Spark Plug Co., Ltd.
5. 1 out of 4
Ngb Spark Plug Co., Ltd.
where one patent can have more than one assignee
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