Yutaka Hirota
24Patents
8h-index
49Co-inventors
75Inventor score
Filing activity: Mar 16, 1977 → Jul 27, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4115739A | Power amplifier | Electricity | 36 | Expired |
| US11616407B2 | Segment-core coupled body and method of manufacturing armature | Electricity | 16 | Active |
| US8985623B2 | Steering wheel structure with airbag module | Mechanical Engineering; Lighting; Heating | 14 | Active |
| US6951054B2 | Manufacturing method of a coil member | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4363851A | Metal-deposited paper and method for production thereof | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4599275A | Metal-deposited paper and method for production thereof | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4198369A | Process for lining container caps | Performing Operations; Transporting | 11 | Expired |
| US4105945A | Active load circuits | Electricity | 8 | Expired |
| US7856701B2 | Manufacturing method of a coil assembly | Emerging Cross-Sectional Technologies | 6 | Active |
| US10150441B2 | Dampening driver airbag assemblies and related systems and methods | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US7624493B2 | Manufacturing apparatus for a winding assembly of a rotating electrical machine | Emerging Cross-Sectional Technologies | 5 | Active |
| US7647689B2 | Method of manufacturing stator of rotating electric machine | Emerging Cross-Sectional Technologies | 5 | Active |
| US11180103B2 | Frontal airbag systems | Performing Operations; Transporting | 3 | Active |
| US11305716B2 | Steering wheel | Performing Operations; Transporting | 3 | Active |
| US7026735B2 | Stator of rotating electric machine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7770286B2 | Manufacturing method for a winding assembly of a rotary electrical machine | Emerging Cross-Sectional Technologies | 2 | Active |
| US7360303B2 | Method manufacturing for a winding assembly of a rotating electrical machine | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11529921B2 | Steering wheel | Performing Operations; Transporting | 1 | Active |
| US4507687A | Horizontal sync pulse control circuit for video tape recorder utilizing pulse code modulation | Electricity | 1 | Expired |
| US11267424B2 | Damper mechanism of steering wheel and steering wheel apparatus for vehicle | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9847688B2 | Rotary electric machine stator and rotary electric machine | Electricity | 0 | Active |
| US10644547B2 | Armature | Electricity | 0 | Active |
| US11993220B2 | Driverseat airbag device | Performing Operations; Transporting | 0 | Active |
| US12431773B2 | Method for manufacturing unit coil for stator of rotary electric machine, device for manufacturing unit coil for stator of rotary electric machine, rotary electric machine, and method for manufacturing a rotary electric machine | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.