1
Jono Yutaka, Kanemoto Michitaka, Kuboto Tatsuyuki, Ooura Toshiaki, Kasuya Yoshiyuki: A nozzle assembly for bottom blown steel converter.. Nippon Steel, January 19, 1983: EP0070197-A1 (11 worldwide citation)

A bottom blowing nozzle assembly for use in refining of molten metal by blowing various gases from the bottom of a steel making furnace such as a steel converter containing the molten metal. The bottom blowing nozzle assembly has a plurality of thin metal nozzles embedded in a refractory block in a ...


2
Ibaraki Tetsuharu C O Nippon S, Kanemoto Michitaka C O Nippon, Yamauchi Masao C O Nippon Stee, Sakamoto Yoshihiko C O Nippon: Method of operating in-bath smelting reduction furnace.. Nippon Steel, March 27, 1991: EP0418627-A1 (7 worldwide citation)

A method of operating an in-bath smelting reduction furnace comprises the step of forming a slag zone in an in-bath smelting reduction furnace supplied with oxygen through a top lance and with agitation gas by bottom bubbling through tuyeres below the metal bath surface and the step of controlling t ...


3
Ibaraki Tatsuharu C O Nippon S, Kanemoto Michitaka C O Nippon, Yamauchi Masao C O Nippon Stee, Saito Chikara C O Nippon Steel, Moridera Hiromitsu Nippon Stee: Method of in-bath smelting reduction of metals and in-bath smelting reduction furnace.. Nippon Steel, April 3, 1991: EP0419868-A1 (2 worldwide citation)

A method of in-bath smelting reduction comprises the step of selectively supplying powder materials into a gas upflow region or a gas downflow region within a furnace during the time that oxygen-containing gas is concurrently being blown into the furnace from a top lance. Also disclosed is an in-bat ...


4
Ibaraki Tetsuharu, Kanemoto Michitaka, Yamauchi Masao, Sakamoto Yoshihiko: Methode dexploitation dun four de reduction pour la fusion en bain, Method of operating in-bath smelting reduction furnace. Nippon Steel Corporation, FETHERSTONHAUGH & CO, August 20, 1996: CA2024466

A method of operating an in-bath smeltingreduction furnace comprises the step of forming a slag zonein an in-bath smelting reduction furnace supplied withoxygen through a top lance and with agitation gas by bottombubbling through tuyeres below the metal bath surface andthe step of controlling the ca ...


5
Kanemoto Michitaka, Tamashima Seiji, Horiuchi Yasushi, Yamamuro Takashi: Corner cracking preventing method for steel piece. Tokai Kogyo, Nittetsu Osaka Engineering, January 11, 2000: JP2000-005855

PROBLEM TO BE SOLVED: To prevent a corner cracking of steel pieces such as a billet without lowering a casting velocity by cooling a portion which is within a given %, of the side length and apart from a corner by a given % or more of the side length per side of a steel piece cross section as a rang ...


6
Kanemoto Michitaka, Inoue Tsuneo, Takamoto Isamu: Steel kind judging method in sequentially continuous casting steel of different kind. Tokai Kogyo, January 7, 2000: JP2000-000645

PROBLEM TO BE SOLVED: To reduce the rejection ratio of the direct rolling by sampling a molten steel in a mold of a continuous casting machine, judging the kind of steel based on a analysis value of the sample to greatly reduce the quantity of a slab to be retained out of joint slabs. SOLUTION: In s ...


7
Iso Heiichiro, Kanemoto Michitaka, Hayashibe Hiroyasu, Yamamuro Takashi: Continuous rolling method. Tokai Kogyo, Nittetsu Osaka Engineering, December 21, 1999: JP1999-347602

PROBLEM TO BE SOLVED: To achieve the high effect of energy saving, high yield and high productivity by rolling materials which are cast with a continuous casting machine without heating. SOLUTION: This continuous rolling method is for manufacturing long size steel using the continuous casting machin ...


8
Sakamoto Katsuhiko, Ibaraki Tetsuji, Kanemoto Michitaka, Taniishi Hikofumi, Motomiya Hikari: Structure of furnace wall in molten metal reaction furnace. Nippon Steel, April 20, 1993: JP1993-098334

PURPOSE: To drastically reduce the cracking of a refractory brick wall in the part in contact with a water cooling structure body and to drastically extend the service life of a reaction furnace by arranging a heat buffering zone at the boundary part between the water cooling structural body and the ...


9
Yamauchi Masao, Ibaraki Tetsuji, Kanemoto Michitaka: Smelting reduction method. Nippon Steel, May 21, 1993: JP1993-125418

PURPOSE: To improve the efficiency and to stabilize smelting reduction operation by inserting an optical fiber in a smelting reduction furnace, detecting brightness of the surface layer part of slag and assuming a carbonaceous material quantity in the slag from the correlation with the brightness. C ...


10
Ibaraki Tetsuji, Yamauchi Masao, Sakamoto Katsuhiko, Kanemoto Michitaka: Smelting reduction furnace. Nippon Steel, May 21, 1993: JP1993-125419

PURPOSE: To enable the execution of stable iron tapping operation and the operation at the prescribed iron tapping velocity by arranging an iron tapping hole at a furnace bottom part having the specific total static pressure in an iron bath type smelting reduction furnace having a top blowing oxygen ...