18 Utility Patents
#129 in Miyagi
#42,069 in Japan
#195,099 in the World
Forward Citations = 102
Company Filing History:

Dowa Holdings Co., Ltd.
Stella Chemifa Corporation
4. 3 out of 43
Nittetsu Mining Co., Ltd.
5. 2 out of 16,453

where one patent can have more than one assignee
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