12 Utility Patents
#6 in Oume
#69,652 in Japan
#326,523 in the World
Forward Citations = 681
Company Filing History:

Other
Hitachi Keiyo Engineering Co., Ltd.
4. 4 out of 87
Hitachi Ulsi Engineering Corp.
5. 2 out of 35
where one patent can have more than one assignee
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