91 Utility Patents
#4 in Mito
#1,911 in Japan
#11,213 in the World
Forward Citations = 1,195
Company Filing History:


Hitachi Power Semiconductor Device, Ltd.

Hitachi Haramachi Semi-conductor, Ltd.
4. 2 out of 830,757 patents
Other
5. 2 out of 3,780

where one patent can have more than one assignee
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