32 Utility Patents
#1 in Yachimata
#17,114 in Japan
#79,131 in the World
Forward Citations = 409
Company Filing History:
Hitachi Industrial Equipment Systems Co., Ltd.
Hitachi Keiyo Engineering Co., Ltd.
4. 1 out of 1
Hitachi Keiyo Eng. Co., Ltd.
where one patent can have more than one assignee
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