19 Utility Patents
#17 in Yotsukaido
#39,195 in Japan
#181,132 in the World
Forward Citations = 164
Company Filing History:
Hitachi Industrial Equipment Systems Co., Ltd.

Other
4. 1 out of 39,209

5. 1 out of 34
Hitachi Keiyo Engineering Co., Ltd.
where one patent can have more than one assignee
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