The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2000
Filed:
Aug. 22, 1997
Katsushige Matsuzaki, Futtsu, JP;
Tatsunori Sunagawa, Futtsu, JP;
Kenji Kawahito, Futtsu, JP;
Junji Omori, Tokyo, JP;
Yoshitaka Yamana, Tokyo, JP;
Shoichi Osada, Tokyo, JP;
Kiyoshi Aritome, Tokyo, JP;
Yoshimasa Ikeda, Futtsu, JP;
Izumi Matsushita, Tokyo, JP;
Wataru Ohashi, Kawasaki, JP;
Kaoru Ito, Kawasaki, JP;
Fumihiko Hasegawa, Kawasaki, JP;
Shinya Nariki, Kawasaki, JP;
Michimasa Sasaki, Kawasaki, JP;
Noritane Tsugane, Kashiwa, JP;
Toshiaki Kurihara, Kitasouma-gun, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
An atomization roasting furnace for producing ferrite raw material powder includes an elongated roasting furnace body with a center burner located at the top end thereof. At least three liquid spray nozzles are located in an expansion slope portion below the center burner circumferentially with respect to the center burner. A quencher, located below the elongated roasting furnace body, has a top end connected to a bottom end of the elongated roasting furnace body. Quencher nozzles are located adjacent the top end of the quencher.