91 Utility Patents
#4 in Mito
#1,955 in Japan
#11,666 in the World
Forward Citations = 1,232
Company Filing History:



Hitachi Power Semiconductor Device, Ltd.

Hitachi Haramachi Semi-conductor, Ltd.
4. 2 out of 831,952 patents
Other
5. 2 out of 3,780

where one patent can have more than one assignee
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