8 Utility Patents
#19,203 in Tokyo
#105,359 in Japan
#501,557 in the World
Forward Citations = 163
Company Filing History:

Sumitomo Metal Industries, Inc.
Other
where one patent can have more than one assignee
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#19,203 in Tokyo
#105,359 in Japan
#501,557 in the World
Company Filing History:

Get your Inventor Badge Today