Kuniaki Ogura
22Patents
9h-index
27Co-inventors
75Inventor score
Filing activity: Oct 26, 1979 → Aug 13, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4266974A | Alloy steel powder having excellent compressibility, moldability and heat-treatment property | Performing Operations; Transporting | 28 | Expired |
| US5989304A | Iron-based powder composition for powder metallurgy excellent in flowability and compactibility and method | Performing Operations; Transporting | 22 | Expired |
| US5571305A | Atomized steel powder excellent machinability and sintered steel manufactured therefrom | Chemistry; Metallurgy | 16 | Expired |
| US4971755A | Method for preparing powder metallurgical sintered product | Performing Operations; Transporting | 15 | Expired |
| US4954171A | Composite alloy steel powder and sintered alloy steel | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5938814A | Iron based powder mixture for powder metallurgy | Performing Operations; Transporting | 14 | Expired |
| US5976215A | Iron-based powder mixture for powder metallurgy and process for preparing the same | Performing Operations; Transporting | 12 | Expired |
| US5476534A | Iron-based powder mixture and method | Performing Operations; Transporting | 10 | Expired |
| US6139600A | Method of making iron-based powder composition for powder metallurgy excellent in flow ability and compactibility | Performing Operations; Transporting | 9 | Expired |
| US5462577A | Water-atomized iron powder and method | Performing Operations; Transporting | 9 | Expired |
| US5766304A | Iron-base powder mixture for powder metallurgy and manufacturing method therefor | Chemistry; Metallurgy | 8 | Expired |
| US4985309A | Alloyed steel powder for powder metallurgy | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6235076A | Iron base powder mixture for powder metallurgy excellent in fluidity and moldability, method of production thereof, and method of production of molded article by using the iron base powder mixture | Performing Operations; Transporting | 8 | Expired |
| US6451082B1 | Iron-based powder mixture for powder metallurgy, process for producing the same, and method of forming a molding from the same | Performing Operations; Transporting | 7 | Expired |
| US5534045A | Water-atomized iron powder and method | Performing Operations; Transporting | 6 | Expired |
| US5279640A | Method of making iron-based powder mixture | Performing Operations; Transporting | 6 | Expired |
| US6503445B2 | Iron-based powder composition for powder metallurgy having higher flowability and higher compactibility and process for production thereof | Performing Operations; Transporting | 4 | Expired |
| US5458670A | Iron powder and mixed powder for powder metallurgy as well as method of producing iron powder | Chemistry; Metallurgy | 4 | Expired |
| US5507853A | Iron powder and mixed powder for powder metallurgy as well as method of producing iron powder | Chemistry; Metallurgy | 3 | Expired |
| US5599377A | Mixed iron powder for powder metallurgy | Chemistry; Metallurgy | 2 | Expired |
| US4804409A | Alloy steel powder for powder metallurgy | Chemistry; Metallurgy | 1 | Expired |
| US9108246B2 | Method for mixing raw material powder for powder metallurgy and method for producing raw material powder for powder metallurgy | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.