9 Utility Patents
#5,331 in Yokohama
#93,484 in Japan
#439,533 in the World
Forward Citations = 31
Company Filing History:

Ihi Infrastructure Systems Co., Ltd.

where one patent can have more than one assignee
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#5,331 in Yokohama
#93,484 in Japan
#439,533 in the World
Company Filing History:


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