28 Utility and 6 Design Patents
#148 in Ibaraki
#22,064 in Japan
#102,872 in the World
rank by utility patentsForward Citations = 692
Company Filing History:
Hitachi Koki Co., Ltd.


4. 2 out of 316

5. 1 out of 9
Hitchi, Ltd.
where one patent can have more than one assignee
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