11 Utility Patents
#771 in Ibaraki
#77,051 in Japan
#363,721 in the World
Forward Citations = 70
Company Filing History:

Hitachi Engineering Co., Ltd.
Hitachi Haramachi Semi-conductor, Ltd.
4. 1 out of 1
Haramachi Semi-hitachi Ltd.
5. 1 out of 1
Hitachi Conductor Ltd.
where one patent can have more than one assignee
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