22 Utility and 4 Design Patents
#2,162 in Yokohama
#31,879 in Japan
#147,706 in the World
rank by utility patentsForward Citations = 297
Company Filing History:

Mitsubishi Pencil Company, Limited

4. 2 out of 52,669

5. 2 out of 196
Mitsubishi Pencil Kabushiki Kaisha
where one patent can have more than one assignee
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