IP Library › Granted Patent US 4,302,243
Granted Patent Utility
US 4,302,243 · App. 06/158,443

Process for producing tantalum concentrates

Inventors: Akio Tamaru, Minoru Kitsunai
Patented Case View Patent ↗
Granted: Nov 24, 1981 Filed: Jun 11, 1980
Inventors
Akio Tamaru
Minoru Kitsunai
Assignee (at issue)
Mitsubishi Chemical Industries, Ltd.

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Quick Facts
Patent No.
US 4,302,243
App. No.
06/158,443
Filed
1980-06-11
Granted
1981-11-24
Kind
A