7 Utility Patents
#236 in Amagasaki
#119,836 in Japan
#582,799 in the World
Forward Citations = 467
Company Filing History:

Sumitomo Special Metals Co., Ltd.
Read Rite Corporation
4. 1 out of 728

5. 1 out of 15
Read-rite Smi Corporation
where one patent can have more than one assignee
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