5 Utility Patents
#8,379 in Yokohama
#162,438 in Japan
#826,260 in the World
Forward Citations = 89
Company Filing History:

Hitachi Engineering Service
where one patent can have more than one assignee
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#8,379 in Yokohama
#162,438 in Japan
#826,260 in the World
Company Filing History:

Get your Inventor Badge Today