1
Izumida Hiroshi, Kawabe Nozomi, Yamao Norito, Murai Teruyuki: Stainless steel wire for heat resistant spring, heat resistant spring, and manufacture of heat resistant spring. Sumitomo Electric, September 5, 2000: JP2000-239804 (4 worldwide citation)

PROBLEM TO BE SOLVED: To produce a steel wire for heat resistant spring with which the cost increase of SUS304, SUS316 and the like is suppressed and excellent in settling resistance even in a high temperature region (350 to 500°C), a heat resistant spring, and to provide a method for manufacturing ...


2
Izumida Hiroshi, Kawabe Nozomi, Yamao Norito, Murai Teruyuki: Heat resistant stainless steel. Sumitomo Electric, April 18, 2000: JP2000-109955 (3 worldwide citation)

PROBLEM TO BE SOLVED: To provide heat resistant stainless steel which is Fe base austenitic stainless steel and has high tensile strength and permanent set resistance even at about 600°C.SOLUTION: This stainless steel is the one contg., by weight, 0.02 to 0.30% C, 0.02 to 3.5% Si, 0.02 to 2.5% Mn, 1 ...


3
Ishihara Toru, Izumida Hiroshi, Yamao Norito, Murai Teruyuki: Steel wire for spring and spring. Sumitomo Denko Steel Wire, July 30, 2003: JP2003-213372 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide a steel wire for a spring in which the fatigue resistance of the material itself is improved without addition of expensive elements and expensive treatment, to provide a production method therefor and a spring.SOLUTION: The steel wire for a spring contains, by mass, ...


4
Yamao Norito, Murai Teruyuki: Oil tempered steel wire for spring. Sumitomo Electric, January 18, 2000: JP2000-017388 (1 worldwide citation)

PROBLEM TO BE SOLVED: To improve the delayed fracture resistance, corrosion resistance and fatigue resistance of steel by composing it of steel for a spring have a specified compsn. contg. C, Si, Mn and Cr, further contg. one or more kinds among Co, Cu, Ni, B and Ti, and the balance Fe with impurity ...


5
Yamao Norito, Shiaku Takashi, Murai Teruyuki: Oil tempered wire. Sumitomo Denko Steel Wire, April 15, 2004: JP2004-115859 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide an oil tempered wire having a hardly peeled oxide film on the surface of the wire, and particularly having superior spring formability, material strength and fatigue resistance, and to provide a manufacturing method therefor.SOLUTION: The oil tempered wire has the ox ...


6
Izumida Hiroshi, Kawabe Nozomi, Yamao Norito, Murai Teruyuki: Steel wire and production method therefor, and spring. Sumitomo Denko Steel Wire, October 31, 2003: JP2003-306747 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide a steel wire which has high strength and high toughness and has a high fatigue limit, and to provide a production method therefor.SOLUTION: The steel wire comprises as chemical components, by mass, 0.4 to 1.0% C, 1.8 to 2.5% Si, 0.4 to 1.3% Mn, 0.7 to 1.2% Cr and 0.0 ...


7
Fujino Yoshiro, Kawabe Nozomi, Yamao Norito, Izumida Hiroshi, Murai Teruyuki: Steel wire for spring. Sumitomo Denko Steel Wire, July 8, 2004: JP2004-190116 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide a steel wire for a spring whose fatigue properties can be improved by allowing the steel wire to have both strength and toughness in a well balance.SOLUTION: The steel wire for a spring contains, by mass, 0.55 to 0.75% C, 1.80 to 2.70% Si, 0.1 to 0.7% Mn and 0.70 to ...


8
Izumida Hiroshi, Kawabe Nozomi, Yamao Norito, Murai Teruyuki: Steel wire for spring, spring and its production method. Sumitomo Electric, July 10, 2002: JP2002-194496 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide steel wire for spring in which high fatigue resistance and corrosion fatigue resistance can be obtained by strengthening the crystal grains of parent phase martensite, its production method, and a spring.SOLUTION: The steel wire has chemical components containing, by ...


9
Fujino Yoshiro, Yamao Norito, Shiaku Takashi: Oil-tempered wire and manufacturing method therefor. Sumitomo Electric, Sumitomo Denko Steel Wire, November 29, 2007: JP2007-308785

PROBLEM TO BE SOLVED: To provide an oil-tempered wire and a manufacturing method therefor with which noise signal caused by the material of the oil-tempered wire is reduced and/or fine flaw of about 30μm can be detected by reducing the noise signal depending on the exfoliated scale and using the exi ...


10
Shiaku Takashi, Yamao Norito, Murai Teruyuki, Fujino Yoshiro, Kawabe Nozomi: Steel wire for spring. Sumitomo Denko Steel Wire, August 18, 2005: JP2005-220422

PROBLEM TO BE SOLVED: To provide steel wire for a spring and a spring having excellent fatigue properties, and to provide a method of producing the steel wire for a spring.SOLUTION: The steel wire for a spring can be obtained by subjecting steel wire containing, by mass, 0.40 to 0.90% C, 0.80 to 3.0 ...