IP Library Granted Patent US 4,989,841
Granted Patent Utility
US 4,989,841 · App. 07/338,837

Metal continuously melting and retaining furnace

Inventors: Kenzo Tokumasu, Katsuo Taki, Ryotatsu Ootsuka, Masaaki Nakamura, Tatsuo Akino
Patented Case View Patent ↗
Granted: Feb 5, 1991 Filed: Apr 14, 1989
Inventors
Kenzo Tokumasu
Katsuo Taki
Ryotatsu Ootsuka
Masaaki Nakamura
Tatsuo Akino
Assignees (at issue)
Honda Foundry Co., Ltd.
Taisei Furnace Ind. Co., Ltd.
Showa Aluminum Corp.

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Quick Facts
Patent No.
US 4,989,841
App. No.
07/338,837
Filed
1989-04-14
Granted
1991-02-05
Kind
A