16 Utility Patents
#9,099 in Tokyo
#47,725 in Japan
#218,345 in the World
Forward Citations = 239
Company Filing History:
Nippon Steel Corporation
Nippon Steel & Sumikin Materials Co., Ltd.
Nippon Steel Materials Co., Ltd.
4. 2 out of 15
Nittetsu Plant Designing Corporation
5. 2 out of 255
Research Development Corporation of Japan
where one patent can have more than one assignee
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