Masafumi Sakuma
32Patents
10h-index
26Co-inventors
75Inventor score
Filing activity: Nov 29, 1995 → Feb 6, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7641010B2 | In-wheel motor with high durability | Performing Operations; Transporting | 61 | Active |
| US5973427A | Cooling device for electric motor | Electricity | 25 | Expired |
| US6815859B2 | Synchronous reluctance motor | Electricity | 19 | Expired |
| US7777387B2 | Laminated core and method for manufacturing the same | Emerging Cross-Sectional Technologies | 18 | Active |
| US5747912A | Switched reluctance motor | Electricity | 13 | Expired |
| US5945761A | Switched reluctance motor | Electricity | 10 | Expired |
| US8195348B2 | Driving power control apparatus for four wheel drive vehicle | Emerging Cross-Sectional Technologies | 10 | Active |
| US7958960B2 | Driving force control apparatus for a vehicle that drives wheel units independently | Emerging Cross-Sectional Technologies | 10 | Active |
| US5917263A | Switched reluctance motor | Electricity | 10 | Expired |
| US7378774B2 | Laminated core of rotary electric machine | Electricity | 10 | Active |
| US5909071A | Switched reluctance motor | Electricity | 7 | Expired |
| US7938212B2 | In-wheel motor system | Emerging Cross-Sectional Technologies | 7 | Active |
| US8258670B2 | Motor including supporting portion contacting stator | Electricity | 6 | Active |
| US7928627B2 | Laminated core and method for manufacturing the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US7015614B2 | Synchronous reluctance motor | Electricity | 4 | Expired |
| US7279821B2 | Motor | Electricity | 3 | Expired |
| US8471420B2 | Rotating electrical machine with terminal box and sealing member | Emerging Cross-Sectional Technologies | 2 | Active |
| US8578904B2 | Device and method for starting engine | Emerging Cross-Sectional Technologies | 2 | Active |
| US8541917B2 | Rotary electrical machine | Emerging Cross-Sectional Technologies | 2 | Active |
| US7994680B2 | Motor including electrical sheets having shear droops | Emerging Cross-Sectional Technologies | 1 | Active |
| US8358041B2 | Electric motor having wire connection structure and wire connection method for the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US9325211B2 | Wave winding coil for rotary electrical machine | Electricity | 1 | Active |
| US6455963B2 | Electric motor | Electricity | 1 | Expired |
| US10784737B2 | Rotating electrical machine and method for manufacturing same | Electricity | 1 | Active |
| US10122232B2 | Rotary electric machine | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.