19 Utility and 2 Design Patents
#7,782 in Tokyo
#39,277 in Japan
#181,667 in the World
rank by utility patentsForward Citations = 24
Company Filing History:


Mitsubishi Hitachi Power Systems, Ltd.
4. 2 out of 37
Nec Engineering, Ltd.
5. 1 out of 42,481

where one patent can have more than one assignee
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