6 Utility Patents
#1,620 in Chiba
#137,701 in Japan
#680,131 in the World
Forward Citations = 34
Company Filing History:
Kawatetsu Mining Co., Ltd.
Kawasaki Steel Corporation
Kawasaki Mining Co. Ltd.
4. 1 out of 1
Kawatetsu Minig Co., Ltd.
where one patent can have more than one assignee
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