27 Utility Patents
#4,913 in Tokyo
#23,403 in Japan
#109,187 in the World
Forward Citations = 579
Company Filing History:

Dowa Mining Co., Ltd.
Yoshino Kogyosho Co., Ltd.
4. 1 out of 5,290

5. 1 out of 41

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#4,913 in Tokyo
#23,403 in Japan
#109,187 in the World
Company Filing History:



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