9 Utility Patents
#142 in Katsuta
#95,574 in Japan
#458,312 in the World
Forward Citations = 85
Company Filing History:

Hitachi Engineering Co., Ltd.
where one patent can have more than one assignee
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#142 in Katsuta
#95,574 in Japan
#458,312 in the World
Company Filing History:

Get your Inventor Badge Today