47 Utility and 1 Design Patents
#1,980 in Tokyo
#8,781 in Japan
#42,932 in the World
rank by utility patentsForward Citations = 276
Company Filing History:

Hitachi Industrial Equipment Systems Co., Ltd.

4. 4 out of 27,375

5. 3 out of 149
Hitachi Powdered Metals Co., Ltd.
where one patent can have more than one assignee
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