23 Utility Patents
#2,047 in Yokohama
#29,927 in Japan
#138,811 in the World
Forward Citations = 320
Company Filing History:
Mitsubishi Kasei Corporation

Mitsubishi Chemical Corporation
4. 4 out of 247

5. 1 out of 47
Japan Polyethylene Corporation
where one patent can have more than one assignee
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