5 Utility Patents
#285 in Sendai
#159,830 in Japan
#798,656 in the World
Forward Citations = 116
Company Filing History:
Other
Japan Metals & Chemicals Co., Ltd.

4. 1 out of 10
Sekiyushigen Kaihatsu Kabushiki Kaisha
5. 1 out of 1,297

where one patent can have more than one assignee
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