8 Utility and 2 Design Patents
#2 in Katori
#107,351 in Japan
#520,561 in the World
rank by utility patentsForward Citations = 148
Company Filing History:
Hitachi Industrial Equipment Systems Co., Ltd.

Other
4. 1 out of 34
Hitachi Keiyo Engineering Co., Ltd.
where one patent can have more than one assignee
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