5 Utility and 39 Design Patents
#1 in Akishima
#216 in Japan
#3,076 in the World
rank by design patentsForward Citations = 837
Company Filing History:
Hitachi, Ltd.
Other
4. 2 out of 27
5. 2 out of 1,267
Hitachi Koki Co., Ltd.
where one patent can have more than one assignee
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