8 Utility and 2 Design Patents
#19,162 in Tokyo
#105,167 in Japan
#499,816 in the World
rank by utility patentsForward Citations = 18
Company Filing History:
Hitachi, Ltd.


4. 2 out of 2,210

5. 1 out of 134
Kabushiki Kaisha Sato
where one patent can have more than one assignee
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