5 Utility Patents
#843 in Hitachinaka
#162,692 in Japan
#828,843 in the World
Forward Citations = 37
Company Filing History:

East Japan Railway Company
where one patent can have more than one assignee
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#843 in Hitachinaka
#162,692 in Japan
#828,843 in the World
Company Filing History:

Get your Inventor Badge Today