Akio Tosaka
26Patents
9h-index
39Co-inventors
71Inventor score
Filing activity: Feb 3, 1987 → Sep 4, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6364968B1 | High-strength hot-rolled steel sheet having excellent stretch flangeability, and method of producing the same | Chemistry; Metallurgy | 39 | Expired |
| US6702904B2 | High tensile cold-rolled steel sheet having excellent strain aging hardening properties | Chemistry; Metallurgy | 23 | Expired |
| US4830686A | Low yield ratio high-strength annealed steel sheet having good ductility and resistance to secondary cold-work embrittlement | Chemistry; Metallurgy | 15 | Expired |
| US6290784A | Hot rolled steel sheet having an ultrafine grain structure and process for producing steel sheet | Performing Operations; Transporting | 15 | Expired |
| US4770719A | Method of manufacturing a low yield ratio high-strength steel sheet having good ductility and resistance to secondary cold-work embrittlement | Chemistry; Metallurgy | 13 | Expired |
| US6695932B2 | Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5587027A | Method of manufacturing canning steel sheet with non-aging property and superior workability | Chemistry; Metallurgy | 11 | Expired |
| US6398884B1 | Methods of producing steel plate, hot-dip steel plate and alloyed hot-dip steel plate | Chemistry; Metallurgy | 10 | Expired |
| US6063214A | Method of producing high-strength steel sheet used for can | Chemistry; Metallurgy | 10 | Expired |
| 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 |
| US6221180A | Steel sheet for can and manufacturing method thereof | Chemistry; Metallurgy | 8 | Expired |
| US6902632B2 | High tensile strength cold rolled steel sheet having excellent strain age hardening characteristics and the production thereof | Chemistry; Metallurgy | 7 | Expired |
| US6692584B2 | High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same | Chemistry; Metallurgy | 7 | Expired |
| US6042952A | Extremely-thin steel sheets and method of producing the same | Emerging Cross-Sectional Technologies | 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 |
| US5074926A | High tensile cold rolled steel sheet and high tensile hot dip galvanized steel sheet having improved stretch flanging property and process for producing same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6110299A | Steel sheet for double wound pipe and method of producing the pipe | Chemistry; Metallurgy | 5 | Expired |
| US5725697A | Method of manufacturing cold-rolled can steel sheet having less planar anisotropy and good workability | Chemistry; Metallurgy | 3 | Expired |
| US4931106A | Hot rolled steel sheet having high resistances against secondary-work embrittlement and brazing embrittlement and adapted for ultra-deep drawing and a method for producing the same | Chemistry; Metallurgy | 3 | Expired |
| US6171416A | Method of producing can steel strip | Chemistry; Metallurgy | 3 | Expired |
| US4974424A | Method and system for cooling strip | Performing Operations; Transporting | 3 | Expired |
| US5534089A | Method of manufacturing small planar anisotropic high-strength thin can steel plate | Chemistry; Metallurgy | 2 | Expired |
| US7252724B2 | High tensile hot-rolled steel sheet having excellent strain aging hardening properties and method for producing the same | Chemistry; Metallurgy | 2 | Expired |
| US4709557A | Method and system for cooling strip | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.