50 Utility and 1 Design Patents
#623 in Yokohama
#7,605 in Japan
#37,952 in the World
rank by utility patentsForward Citations = 646
Company Filing History:


4. 3 out of 831,952 patents
Other
5. 3 out of 378
Mitsubishi Pencil Company, Limited
where one patent can have more than one assignee
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