Chikara Kami
36Patents
6h-index
39Co-inventors
65Inventor score
Filing activity: Oct 24, 2001 → Jul 5, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6702904B2 | High tensile cold-rolled steel sheet having excellent strain aging hardening properties | Chemistry; Metallurgy | 23 | Expired |
| US6695932B2 | Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7879287B2 | Hot-rolled steel sheet for high-strength electric-resistance welded pipe having sour-gas resistance and excellent weld toughness, and method for manufacturing the same | Chemistry; Metallurgy | 10 | Active |
| US7101445B2 | Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7501030B2 | Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof | Chemistry; Metallurgy | 9 | Expired |
| US6902632B2 | High tensile strength cold rolled steel sheet having excellent strain age hardening characteristics and the production thereof | Chemistry; Metallurgy | 7 | Expired |
| US6899771B2 | High tensile strength cold rolled steel sheet having excellent strain age hardening characteristics and the production thereof | Chemistry; Metallurgy | 6 | Expired |
| US7067023B2 | Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US10272513B2 | Ferritic stainless steel sheet for plasma arc welding and welding method therefor | Chemistry; Metallurgy | 5 | Active |
| US10975459B2 | Ferritic stainless steel | Chemistry; Metallurgy | 4 | Active |
| US10450625B2 | Ferritic stainless steel and method for producing same | Chemistry; Metallurgy | 4 | Active |
| US10458013B2 | Ferritic stainless steel and process for producing same | Chemistry; Metallurgy | 4 | Active |
| US9493865B2 | Thick-walled high-strength hot rolled steel sheet with excellent low-temperature toughness and method of producing same | Chemistry; Metallurgy | 4 | Active |
| US9809869B2 | Thick-walled high-strength hot rolled steel sheet having excellent hydrogen induced cracking resistance and manufacturing method thereof | Chemistry; Metallurgy | 3 | Active |
| US8784577B2 | Thick high-tensile-strength hot-rolled steel sheet having excellent low-temperature toughness and manufacturing method thereof | Chemistry; Metallurgy | 2 | Active |
| US9752216B2 | High-strength hot rolled steel sheet with excellent bendability and low-temperature toughness, and method for manufacturing the same | Chemistry; Metallurgy | 2 | Active |
| US10900104B2 | Hot rolled steel sheet and method for manufacturing the same | Chemistry; Metallurgy | 1 | Active |
| US10047416B2 | Hot rolled steel sheet and method for manufacturing the same | Chemistry; Metallurgy | 1 | Active |
| US10655195B2 | Martensitic stainless steel | Chemistry; Metallurgy | 1 | Active |
| US10400299B2 | High-carbon hot-rolled steel sheet and method for manufacturing the same | Chemistry; Metallurgy | 1 | Active |
| US10714764B2 | Stainless steel sheet for fuel cell separators and method for producing the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US10301693B2 | High-strength hot-rolled steel sheet and method for producing the same | Chemistry; Metallurgy | 0 | Active |
| US10837075B2 | Hot rolled and annealed ferritic stainless steel sheet, method of producing same, and cold rolled and annealed ferritic stainless steel sheet | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10745774B2 | Ferrite-martensite dual-phase stainless steel and method of manufacturing the same | Chemistry; Metallurgy | 0 | Active |
| US10988853B2 | Stainless steel sheet including Ni and O-containing coating on surface and method for producing stainless steel sheet | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.