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Featured researches published by Maruyama Naoki.


Archive | 2006

HIGH-STRENGTH COLD-ROLLED STEEL SHEET SUPERIOR IN DEEP DRAWABILITY, AND MANUFACTURING METHOD THEREFOR

Sugiura Natsuko; Maruyama Naoki; Yoshinaga Naoki; Takahashi Manabu


Archive | 2009

Hot rolled steel sheet having excellent punching workability and fatigue properties, hot dip galvanized steel sheet, and method for producing the same

Maruyama Naoki; Yoshinaga Naoki; Azuma Masafumi; Sakuma Yasuharu; Itami Atsushi


Archive | 2008

HOT-ROLLED STEEL SHEET EXCELLENT IN FATIGUE CHARACTERISTICS AND STRETCH-FLANGING, AND PRODUCING METHOD THEREFOR

Yoshinaga Naoki; Azuma Masashi; Sakuma Koji; Maruyama Naoki


Archive | 2014

HIGH-STRENGTH STEEL SHEET HAVING SUPERIOR IMPACT RESISTANCE, METHOD FOR PRODUCING SAME, HIGH-STRENGTH GALVANIZED STEEL SHEET, AND METHOD FOR PRODUCING SAME

Kawata Hiroyuki; Maruyama Naoki; Murasato Akinobu; Minami Akinobu; Hasegawa Hajime; Wakabayashi Chisato; Oki Tsuyoshi


Archive | 2006

COLD ROLLED STEEL SHEET WITH EXCELLENT DEEP DRAWABILITY, AND ITS MANUFACTURING METHOD

Kimura Ken; Yoshinaga Naoki; Maruyama Naoki; Sugiura Natsuko


Archive | 2009

HIGH STRENGTH STEEL SHEET HAVING REDUCED DETERIORATION IN CHARACTERISTIC AFTER CUTTING, AND METHOD FOR PRODUCING THE SAME

Azuma Masashi; Suzuki Noriyuki; Maruyama Naoki; Yoshinaga Naoki; Murasato Akinobu


Archive | 2007

STEEL SHEET FOR DEEP DRAWING EXCELLENT IN LOW-TEMPERATURE BAKING HARDENABILITY AND ROOM-TEMPERATURE NON-AGING PROPERTY AND METHOD FOR PRODUCING THE SAME

Maruyama Naoki; Yoshinaga Naoki; Takahashi Manabu


Archive | 2005

COLD ROLLED STEEL SHEET HAVING EXCELLENT CURING PERFORMANCE FOR BAKED PAINT AND COLD DELAYED AGING PROPERTY AND PRODUCTION METHOD THEREFOR

Yoshinaga Naoki; Maruyama Naoki; Takahashi Manabu; Sugiura Natsuko


Archive | 2011

HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING MAXIMUM TENSILE STRENGTH OF >=900 MPa AND HAVING EXCELLENT IMPACT ABSORBED ENERGY, METHOD FOR PRODUCING THE SAME, HIGH STRENGTH GALVANIZED STEEL SHEET, AND METHOD FOR PRODUCING THE SAME

Azuma Masashi; Suzuki Noriyuki; Maruyama Naoki; Murasato Akinobu; Sakuma Koji


Archive | 2008

HIGH YOUNG'S MODULUS HIGH STRENGTH COLD ROLLED STEEL SHEET EXCELLENT IN LOCAL DUCTILITY AND ITS PRODUCTION METHOD

Ogawa Toshio; Maruyama Naoki; Sugiura Natsuko; Takahashi Manabu

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