21 Utility Patents
#66 in Fukuoka
#34,109 in Japan
#157,675 in the World
Forward Citations = 91
Company Filing History:
Kabushiki Kaisha Yaskawa Denki
Nippon Steel & Sumitomo Metal Corporation
Sumitomo Pipe & Tube Co., Ltd.
4. 1 out of 3,527
Nippon Steel Corporation
5. 1 out of 3
Nippon Steel & Sumikin Pipe Co., Ltd.
where one patent can have more than one assignee
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