6 Utility Patents
#1 in Tsukumi
#138,817 in Japan
#688,746 in the World
Forward Citations = 32
Company Filing History:


Other
4. 1 out of 222
Babcock-hitachi Kabushiki Kaisha
5. 1 out of 4
Chichibu Onoda Cement Corp.
where one patent can have more than one assignee
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