31 Utility Patents
#4,001 in Tokyo
#18,691 in Japan
#87,495 in the World
Forward Citations = 127
Company Filing History:

Hitachi Chemical Company, Ltd.
Hitachi Displays, Ltd.
4. 2 out of 832,575 patents
Other
5. 2 out of 3,780

where one patent can have more than one assignee
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