19 Utility Patents
#2,595 in Yokohama
#39,252 in Japan
#181,495 in the World
Forward Citations = 125
Company Filing History:
Nippon Oil Company
Seiko Kagaku Kogyo Co., Ltd.
Hokuetsu Paper Mills, Ltd.
4. 1 out of 327
Nippon Petrochemicals Company, Limited
5. 1 out of 1
Hokuetso Paper Mills, Ltd.
where one patent can have more than one assignee
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