14 Utility Patents
#11,133 in Tokyo
#57,981 in Japan
#269,732 in the World
Forward Citations = 31
Company Filing History:
Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
Clean Planet Inc.
4. 1 out of 1
Nippon Steel Esment Kanto Co., Ltd
where one patent can have more than one assignee
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