17 Utility Patents
#220 in Fujisawa
#45,393 in Japan
#211,202 in the World
Forward Citations = 557
Company Filing History:

Hitachi Keiyo Engineering Co., Ltd.
where one patent can have more than one assignee
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#220 in Fujisawa
#45,393 in Japan
#211,202 in the World
Company Filing History:

Get your Inventor Badge Today