Chikara Okada
10Patents
6h-index
5Co-inventors
51Inventor score
Filing activity: Feb 12, 1993 → Dec 3, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5383978A | Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet | Electricity | 59 | Expired |
| US5674327A | Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet | Electricity | 10 | Expired |
| US5690752A | Permanent magnet containing rare earth metal, boron and iron | Electricity | 9 | Expired |
| US5478664A | Method of recovering reusable metals from nickel-hydrogen rechargeable battery | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5470404A | Rare earth metal-nickel hydrogen occlusive alloy ingot | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6053995A | Method of producing an age precipitation-containing rare earth metal-nickel alloy | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5656100A | Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet | Electricity | 5 | Expired |
| US5680896A | Method for production of rare earth metal-nickel hydrogen occlusive alloy ingot | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5985054A | Age precipitation-containing rare earth metal-nickel alloy | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5630885A | Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.