Eiji Yamada
116Patents
24h-index
149Co-inventors
93Inventor score
Filing activity: Aug 2, 1966 → Dec 22, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5754226A | Imaging apparatus for obtaining a high resolution image | Electricity | 119 | Expired |
| US5988307A | Power transmission apparatus, four-wheel drive vehicle with power transmission apparatus incorporated therein, method of transmitting power, and method of four-wheel driving | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5608300A | Electrical angle-detecting apparatus and driving system of synchronous motor using the same | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5844342A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6087734A | Power output apparatus, method of controlling power output apparatus, and driving system with power output apparatus incorporated therein | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5414719A | Operating circuit for galois field | Electricity | 46 | Expired |
| US6108036A | Imaging apparatus having a spatial filter and image shifting mechanism controller based on an image mode | Electricity | 45 | Expired |
| US5936312A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5973460A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5903112A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4880703A | Acicular electroconductive titanium oxide and process for producing same | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5903113A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5905346A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5569995A | Method and apparatus for driving and controlling synchronous motor using permanent magnets as its field system | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5789877A | Power transmitting apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6781333B2 | Drive control apparatus and method of alternating current motor | Electricity | 30 | Expired |
| US5969496A | Method of controlling operation of synchronous motor and motor control apparatus for the same | Electricity | 30 | Expired |
| US5814909A | Electric motor having heat radiator at electric connection with inverter | Electricity | 28 | Expired |
| US5909094A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5650706A | Control device for salient pole type permanent magnet motor | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6577341B1 | Imaging apparatus | Electricity | 26 | Expired |
| US5791426A | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6340847B1 | Power output apparatus and method of controlling the same | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6815730B2 | Nitride-based semiconductor light-emitting device | Electricity | 24 | Expired |
| US6037741A | Motor controller and method of controlling motor | Electricity | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.