This inventor holds 1 USPTO granted patent. Top assignees: Fuji Sangijo Co., Ltd., Sumitomo Metal Mining Company, Ltd.. Active years: 1980.
% Patents Active = 100.0
Average Co-Inventor Count = 5.0
ph-index = 1
Forward Citations = 2(Granted Patents)
Company Filing History:
1 out of 1 Fuji Sangijo Co., Ltd.
1 out of 898 
Sumitomo Metal Mining Company, Ltd.
where one patent can have more than one assignee
Years Active: 1980
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1 patent (USPTO):Explore Patents
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