28 Utility Patents
#26 in Neyagawa
#22,038 in Japan
#102,658 in the World
Forward Citations = 93
Company Filing History:
Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
Sumitomo Metal Industries, Inc.
4. 2 out of 832,540 patents
Other
5. 1 out of 1
Sumikin Welding Industries Ltd.
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