20 Utility Patents
#2,430 in Yokohama
#36,559 in Japan
#168,885 in the World
Forward Citations = 115
Company Filing History:


Mitsubishi Power, Ltd.
4. 2 out of 381
Mitsubishi Pencil Company, Limited
5. 1 out of 16,453

where one patent can have more than one assignee
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