Inventor

TAKASHIMA KATSUTOSHI

JP50 patents

⚠️ This page may combine multiple inventors who share the name “TAKASHIMA KATSUTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TAKASHIMA KATSUTOSHI

JFE STEEL CORP

High-strength cold-rolled steel sheet and method for manufacturing the same (as amended)

High-yield-ratio, high-strength cold rolled steel sheet and production method therefor

Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same

High-strength steel sheet and method for producing same

Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same

Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same

Steel sheet and plated steel sheet, method for producing steel sheet, and method for producing plated steel sheet

High-strength cold-rolled steel sheet and method of manufacturing the same

Hot-rolled steel sheet and method for producing same

Galvanized steel sheet

Hot-rolled steel sheet and method for producing same

Hot-pressed member, cold-rolled steel sheet for hot-pressed member, and method for producing the same

Method for producing hot-rolled steel sheet, method for producing cold-rolled full-hard steel sheet, and method for producing heat-treated sheet

Hot-pressed member, method for manufacturing the same, and method for manufacturing steel sheet for hot-pressed member

Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same

Hot-pressed steel sheet member and method for producing same

Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same

High-strength steel sheet and method for manufacturing the same

High-strength cold rolled steel sheet and method for producing the same

Resistance spot welding method and welded member production method

Steel sheet and plated steel sheet, method for producing hot-rolled steel sheet, method for producing cold-rolled full-hard steel sheet, method for producing heat-treated sheet, method for producing steel sheet, and method for producing plated steel sheet

Steel sheet and plated steel sheet, method for producing hot-rolled steel sheet, method for producing cold-rolled full-hard steel sheet, method for producing heat-treated sheet, method for producing steel sheet, and method for producing plated steel sheet

High-yield-ratio high-strength cold-rolled steel sheet and method of producing the same

High-yield-ratio, high-strength cold-rolled steel sheet and production method therefor

Galvanized steel sheet, electrodeposition-coated steel sheet, automotive part, method of producing electrodeposition-coated steel sheet, and method of producing galvanized steel sheet

Alloyed galvanized steel sheet, electrodeposition-coated steel sheet, automotive part, method of producing electrodeposition-coated steel sheet, and method of producing alloyed galvanized steel sheet

High-strength thin steel sheet and method for manufacturing same

Hot-pressed member and method for manufacturing same, and cold-rolled steel sheet for hot pressing and method for manufacturing same

Resistance spot welding method

Automotive member having resistance weld

High-strength cold-rolled steel sheet with excellent material homogeneity and production method therefor

High strength cold rolled steel sheet with low yield ratio and method of manufacturing the same

High strength cold rolled steel sheet with high yield ratio and method for producing the same

Spot welded member

Hot-pressed member and method for producing the same

Fe-based electroplated steel sheet and galvannealed steel sheet, and methods of producing same

Galvannealed steel sheet, electrodeposition-coated steel sheet, automotive part, method of producing electrodeposition-coated steel sheet, and method of producing galvannealed steel sheet

Fe-based electroplated steel sheet, electrodeposition-coated steel sheet, automotive part, method of producing electrodeposition-coated steel sheet, and method of producing Fe-based electroplated steel sheet

Galvanized steel sheet, electrodeposition-coated steel sheet, automotive part, method of producing electrodeposition-coated steel sheet, and method of producing galvanized steel sheet

High-strength cold-rolled steel sheet and production method for same

Hot-pressed member, cold-rolled steel sheet for hot pressing, and manufacturing methods therefor

Hot press member, production method for steel sheet for hot press, and production method for hot press member

Resistance spot welding method

Friction stir spot welded joint and production method therefor, and friction stir spot welding method

High-strength cold-rolled steel sheet and method for manufacturing the same

Resistance spot welding method and welded member production method

MATSUDA TAKESHI

Zinc-based metal coated steel sheet

Galvanized steel sheet

Method for manufacturing zinc or zinc alloy coated steel sheet and zinc or zinc alloy coated steel sheet manufactured by the method

TAKASHIMA KATSUTOSHI

High-strength cold-rolled steel sheet with high yield ratio having excellent formability and method for producing the same