75 Utility and 4 Design Patents
#3 in Hitachiota
#3,209 in Japan
#17,542 in the World
rank by utility patentsForward Citations = 708
Company Filing History:



4. 7 out of 3,780

5. 4 out of 1,267
Hitachi Koki Co., Ltd.
where one patent can have more than one assignee
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