24 Utility and 2 Design Patents
#5,717 in Tokyo
#28,055 in Japan
#130,009 in the World
rank by utility patentsForward Citations = 330
Company Filing History:
Dai Nippon Printing Co., Ltd.

Nippon Oil Company
4. 3 out of 52,669

5. 2 out of 412

where one patent can have more than one assignee
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