46 Utility Patents
#731 in Yokohama
#9,220 in Japan
#45,043 in the World
Forward Citations = 537
Company Filing History:


Hitachi Engineering Co., Ltd.
4. 1 out of 832,680 patents
Other
5. 1 out of 222
Babcock-hitachi Kabushiki Kaisha
where one patent can have more than one assignee
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