Akihiro Tsumura
27Patents
6h-index
25Co-inventors
61Inventor score
Filing activity: Mar 7, 2012 → Nov 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9935569B2 | Motor drive control apparatus, compressor, fan, and air-conditioning apparatus | Emerging Cross-Sectional Technologies | 16 | Active |
| US9692312B2 | Power conversion apparatus, and air-conditioning apparatus using the same | Emerging Cross-Sectional Technologies | 14 | Active |
| US9712071B2 | Power conversion device and air-conditioning apparatus | Electricity | 13 | Active |
| US9941834B2 | Power conversion apparatus and air-conditioning apparatus including the power conversion apparatus | Emerging Cross-Sectional Technologies | 12 | Active |
| US9431915B2 | Power conversion apparatus and refrigeration air-conditioning apparatus | Emerging Cross-Sectional Technologies | 12 | Active |
| US9787246B2 | Motor drive control device, compressor, air-sending device, and air-conditioning apparatus | Emerging Cross-Sectional Technologies | 12 | Active |
| US10263539B2 | Power converter and air-conditioning apparatus using the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US9272865B2 | Sheet transfer device | Performing Operations; Transporting | 3 | Active |
| US9998007B2 | Boost converter with flying capacitor and refrigeration circuit | Emerging Cross-Sectional Technologies | 2 | Active |
| US9567177B2 | Paper discharge device | Performing Operations; Transporting | 1 | Active |
| US9385642B2 | Air conditioner | Emerging Cross-Sectional Technologies | 1 | Active |
| US9742267B2 | Power conversion apparatus and refrigeration air-conditioning apparatus | Emerging Cross-Sectional Technologies | 1 | Active |
| US11211875B2 | Power converter, compressor, air-sending device, and air-conditioning apparatus | Emerging Cross-Sectional Technologies | 1 | Active |
| US11658601B2 | Motor control device and air-conditioning apparatus having the same | Electricity | 0 | Active |
| US12334809B2 | Power supply shut-off control device | Electricity | 0 | Active |
| US11682989B2 | Motor control device | Electricity | 0 | Active |
| US11424698B2 | Motor control device and air-conditioning device | Electricity | 0 | Active |
| US11509232B2 | Power converter and air-conditioning apparatus using the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US10003184B2 | Backflow preventing device, power conversion device, and refrigeration air-conditioning apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US11012011B2 | Motor control device and air conditioner | Electricity | 0 | Active |
| US10116205B2 | Power conversion device and refrigerating and air-conditioning apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US10404196B2 | Backflow preventing device, power conversion apparatus, and refrigerating and air-conditioning apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US11456684B2 | Electric motor control device | Electricity | 0 | Active |
| US11133762B2 | Drive system, fluid utilization apparatus, and air conditioner | Electricity | 0 | Active |
| US9481538B2 | Paper discharge device | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.