42 Utility Patents
#22 in Kasugai
#10,959 in Japan
#52,629 in the World
Forward Citations = 198
Company Filing History:

Ngk Optoceramics Co., Ltd.
Ngk Insulators, Lts.
4. 1 out of 1,431

5. 1 out of 1
Ngk Insulations, Ltd.
where one patent can have more than one assignee
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