15 Utility Patents
#413 in Hitachi
#52,179 in Japan
#241,046 in the World
Forward Citations = 97
Company Filing History:



4. 1 out of 35
5. 1 out of 42,343
where one patent can have more than one assignee
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#413 in Hitachi
#52,179 in Japan
#241,046 in the World
Company Filing History:



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