24 Utility Patents
#5,680 in Tokyo
#27,957 in Japan
#129,648 in the World
Forward Citations = 321
Company Filing History:
Mitsubishi Paper Mills Limited
Mitsubishi Kasei Corporation
Tohkem Products Corporation
4. 1 out of 1
Tohkam Products
5. 1 out of 2,333
Mitsubishi Chemical Corporation
where one patent can have more than one assignee
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