2 Utility Patents
#2,092 in Hachioji
#304,343 in Japan
Forward Citations = 3
Company Filing History:


Hitachi Chemical Company, Ltd.
4. 2 out of 6,881
Sumitomo Chemical Company, Limited
5. 2 out of 3,181
Dai Nippon Printing Co., Ltd.
where one patent can have more than one assignee
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