Takaaki Hira
17Patents
7h-index
66Co-inventors
69Inventor score
Filing activity: Jun 25, 1984 → Sep 15, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4959275A | Process and equipment for micro-pattern forming on roll surface, metal sheets for pressworking prepared by the roll, and method of preparing same | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6331216A | Steel pipe having high ductility and high strength and process for production thereof | Chemistry; Metallurgy | 25 | Expired |
| US4763466A | Steel cord for radial tire | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5486243A | Method of producing an aluminum alloy sheet excelling in formability | Chemistry; Metallurgy | 17 | Expired |
| US6290789A | Ultrafine-grain steel pipe and process for manufacturing the same | Chemistry; Metallurgy | 11 | Expired |
| US4571274A | Method for continuous annealing of a metal strip | Chemistry; Metallurgy | 8 | Expired |
| US7633210B2 | Multi-layer electronic component and method for manufacturing the same, multi-layer piezoelectric element | Electricity | 8 | Expired |
| US8844581B2 | Closed structure parts, method and press forming apparatus for manufacturing the same | Emerging Cross-Sectional Technologies | 7 | Active |
| US5558727A | Steel sheet for automobiles having excellent impact resistance and method of manufacturing the steel sheet | Chemistry; Metallurgy | 7 | Expired |
| US9162272B2 | Closed structure parts, method and press forming apparatus for manufacturing the same | Performing Operations; Transporting | 4 | Active |
| US5324594A | Galvannealed steel sheets exhibiting excellent press die sliding property | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4848127A | Method of reducing slab in widthwise direction | Performing Operations; Transporting | 3 | Expired |
| US9009970B2 | Curvilineal closed structure parts and method for manufacturing the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US6103394A | Thin steel sheet having excellent rectangular drawability and production method thereof | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7656077B2 | Laminated piezoelectric device | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4575053A | Continuous annealing apparatus | Chemistry; Metallurgy | 1 | Expired |
| US5322741A | Aluminum alloy sheet with improved formability and method of production | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.