97 Utility and 1 Design Patents
#11 in Hachioji
#1,669 in Japan
#10,197 in the World
rank by utility patentsForward Citations = 2,511
Company Filing History:


Hitachi Chemical Company, Ltd.
4. 2 out of 38
Hitachi Chemical Research Center, Inc.
5. 2 out of 228

where one patent can have more than one assignee
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