9 Utility Patents
#17,168 in Tokyo
#93,484 in Japan
#439,533 in the World
Forward Citations = 44
Company Filing History:
Hitachi, Ltd.

Hitachi Kenki Fine Tech Co., Ltd.
4. 1 out of 14
Hitachi High-tech Electronics Engineering Co., Ltd.
5. 1 out of 1
Hitachi High-technologies Corporaation
where one patent can have more than one assignee
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