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Class Information
Number: 148/333
Name: Metal treatment > Stock > Ferrous (i.e., iron base) > Chromium containing, but less than 9 percent
Description: Stock material which additionally contains chromium in an amount of less than 9 percent.

Sub-classes under this class:

Class Number Class Name Patents
148/334 Molybdenum containing 344

Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8691030 Low alloy steels with superior corrosion resistance for oil country tubular goods Apr. 8, 2014
8685181 Manufacturing method of carbon steel sheet superior in formability Apr. 1, 2014
8685182 High-strength steel pipe and producing method thereof Apr. 1, 2014
8679265 High-strength cold-rolled steel sheet Mar. 25, 2014
8673094 Case hardening steel and manufacturing method thereof Mar. 18, 2014
8668783 Steel wire rod having excellent drawability and fatigue properties, and manufacturing method of the same Mar. 11, 2014
8663400 Low alloy steel for high-pressure hydrogen gas environment and container for high-pressure hydrogen Mar. 4, 2014
8657969 High-strength galvanized steel sheet with excellent formability and method for manufacturing the same Feb. 25, 2014
8647449 Alloys for hardbanding weld overlays Feb. 11, 2014
8636852 High strength galvanized steel sheet and method for manufacturing the same Jan. 28, 2014
8628630 Hot-pressed steel sheet member, steel sheet for hot-press, and method for manufacturing hot-pressed steel sheet member Jan. 14, 2014
8613809 High cleanliness spring steel and high cleanliness spring excellent in fatigue properties Dec. 24, 2013
8608874 Spring steel and method for manufacturing the same Dec. 17, 2013
8591672 Implantable medical devices comprising bio-degradable alloys Nov. 26, 2013
8585835 High-strength steel machined product and method for manufacturing the same, and method for manufacturing diesel engine fuel injection pipe and common rail Nov. 19, 2013
8580154 Quaternary ammonium salts as a conversion coating or coating enhancement Nov. 12, 2013
8562760 Compositions and methods for determining alloys for thermal spray, weld overlay, thermal spray post processing applications, and castings Oct. 22, 2013
8562759 Compositions and methods for determining alloys for thermal spray, weld overlay, thermal spray post processing applications, and castings Oct. 22, 2013
8557061 Spring steel with excellent resistance to hydrogen embrittlement and steel wire and spring obtained from the steel Oct. 15, 2013
8512487 Seamless expandable oil country tubular goods and manufacturing method thereof Aug. 20, 2013
8491732 Hot-rolled steel bar or wire rod Jul. 23, 2013
8486205 High strength hot rolled steel sheet excellent in bore expanding workability and method for production thereof Jul. 16, 2013
8480821 Piston ring material for internal combustion engine Jul. 9, 2013
8470099 Wire rod, steel wire, and manufacturing method thereof Jun. 25, 2013
8460481 High-strength steel sheet and galvanized steel sheet having very good balance between hole expansibility and ductility, and also excellent in fatigue resistance, and methods of producing the s Jun. 11, 2013
8430974 Carburized and induction-hardened component Apr. 30, 2013
8430977 Hollow drilling steel rod and method of manufacturing the same Apr. 30, 2013
8394209 High-strength steel sheet excellent in resistance to stress-relief annealing and in low-temperature joint toughness Mar. 12, 2013
8394319 Martensitic-steel casting material and process for producing martensitic cast steel product Mar. 12, 2013
8361246 Pearlite rail Jan. 29, 2013
8361256 Method for producing seamless steel pipe Jan. 29, 2013
8357328 Methods for processing nanostructured ferritic alloys, and articles produced thereby Jan. 22, 2013
8353992 High young's modulus steel plate and method of production of same Jan. 15, 2013
8349095 Spring steel and spring having superior corrosion fatigue strength Jan. 8, 2013
8337643 Hot rolled dual phase steel sheet Dec. 25, 2012
8328958 Steels for sour service environments Dec. 11, 2012
8328169 Spring steel and spring having superior corrosion fatigue strength Dec. 11, 2012
8328957 Electric resistance welded steel pipe with excellent weld toughness for line pipe Dec. 11, 2012
8273292 Steel for machine and structural use having excellent machinability Sep. 25, 2012
8252125 Method for producing a workpiece and a workpiece Aug. 28, 2012
8246762 Implantable medical devices comprising bio-degradable alloys Aug. 21, 2012
8241559 Steel material having a high silicon content for producing piston rings and cylinder sleeves Aug. 14, 2012
8236111 Product for enameling and enameled product Aug. 7, 2012
8216397 High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and Jul. 10, 2012
8216394 Method for production of steel product with outstanding descalability; and steel wire with outstanding descalability Jul. 10, 2012
8206518 Die for press forming of glass and manufacturing method thereof Jun. 26, 2012
8192565 Steel for machine and structural use having excellent machinability and process for producing the same Jun. 5, 2012
8187530 Steel for high-cleanliness spring with excellent fatigue characteristics and high-cleanliness spring May. 29, 2012
8177925 High-tensile steel plate, welded steel pipe or tube, and methods of manufacturing thereof May. 15, 2012
8168011 High-strength steel wire excellent in ductility and method of manufacturing the same May. 1, 2012

1 2 3 4 5 6 7 8 9

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