69 Utility and 4 Design Patents
#23 in Hitachinaka
#3,824 in Japan
#20,439 in the World
rank by utility patentsForward Citations = 426
Company Filing History:



4. 1 out of 831,952 patents
Other
5. 1 out of 1
Hitachi High-thecnologies Corporation
where one patent can have more than one assignee
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