22 Utility Patents
#37 in Wakayama
#31,893 in Japan
#147,832 in the World
Forward Citations = 196
Company Filing History:


Sumitomo Metal Industries, Inc.
4. 1 out of 8
Sumikin Coke Company Limited
5. 1 out of 746
Toshiba Kikai Kabushiki Kaisha
where one patent can have more than one assignee
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