19 Utility Patents
#2,598 in Yokohama
#39,277 in Japan
#181,667 in the World
Forward Citations = 22
Company Filing History:

Nippon Steel & Sumikin Chemical Co., Ltd.
Tanaka Kikinzoku Kogyo K.k.
4. 1 out of 1,115

5. 1 out of 120
Nippon Steel Chemical & Material Co., Ltd.
where one patent can have more than one assignee
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