13 Utility Patents
#3,315 in Osaka
#63,377 in Japan
#296,533 in the World
Forward Citations = 17
Company Filing History:

Sumitomo Special Metals Co., Ltd.
Hitatchi Metals, Ltd.
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#3,315 in Osaka
#63,377 in Japan
#296,533 in the World
Company Filing History:

Get your Inventor Badge Today