2 Utility Patents
#376 in Sapporo
#304,620 in Japan
Forward Citations = 7
Company Filing History:
City of Sapporo

Hitachi Chemical Company, Ltd.
4. 1 out of 2
Showa Denko Materials (america), Inc.
5. 1 out of 38
Hitachi Chemical Research Center, Inc.
where one patent can have more than one assignee
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