110 Utility Patents
#5 in Hitachi
#1,233 in Japan
#7,986 in the World
Forward Citations = 908
Company Filing History:



4. 9 out of 1,175

5. 2 out of 3,780

where one patent can have more than one assignee
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#5 in Hitachi
#1,233 in Japan
#7,986 in the World
Company Filing History:





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