5 Utility Patents
#253 in Katsuta
#160,159 in Japan
#801,334 in the World
Forward Citations = 48
Company Filing History:


4. 1 out of 6
Hitachi Engineering Ltd
where one patent can have more than one assignee
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#253 in Katsuta
#160,159 in Japan
#801,334 in the World
Company Filing History:


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