Ryosuke Tachi
30Patents
6h-index
33Co-inventors
69Inventor score
Filing activity: May 24, 1982 → May 11, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6267296A | Two-dimensional code and method of optically reading the same | Physics | 62 | Expired |
| US4730256A | Electronic control apparatus including microcomputers for controlling some of the systems found in a vehicle | Physics | 40 | Expired |
| US6002783A | Object checking system capable of checking object irrespective of checking algorithms for reference data | Physics | 16 | Expired |
| US4519038A | Optimizing spark timing control apparatus and method | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4883033A | Ignition timing control system for internal combustion engines | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4584978A | Method and apparatus for controlling spark timing in internal combustion engines | Emerging Cross-Sectional Technologies | 10 | Expired |
| US12035115B2 | Speaker distortion correction device | Electricity | 1 | Active |
| US10854187B2 | Active noise control system and on-vehicle audio system | Physics | 1 | Active |
| US11335314B2 | Active noise control system comprising auxiliary filter selection based on object position | Physics | 1 | Active |
| US11805367B2 | Speaker | Electricity | 1 | Active |
| US11482204B2 | Active noise control system | Physics | 0 | Active |
| US11462203B2 | In-vehicle communication support system | Physics | 0 | Active |
| US11276385B2 | Noise reduction device, vehicle, noise reduction system, and noise reduction method | Physics | 0 | Active |
| US11756523B2 | Active noise control system | Electricity | 0 | Active |
| US11622195B2 | Active noise control system utilizing noise cancellation sounds | Electricity | 0 | Active |
| US12052549B2 | Speaker | Electricity | 0 | Active |
| US11043202B2 | Active noise control system, setting method of active noise control system, and audio system | Physics | 0 | Active |
| US12394403B2 | Active noise control system | Physics | 0 | Active |
| US10109295B2 | Audio processing apparatus and audio processing method | Electricity | 0 | Active |
| US11462205B2 | In-vehicle communication support system | Electricity | 0 | Active |
| US12112733B2 | Communication support system | Physics | 0 | Active |
| US11922916B2 | Active noise control system | Electricity | 0 | Active |
| US11463808B2 | Active noise control system | Electricity | 0 | Active |
| US12338942B2 | Seamless steel pipe and method of manufacture thereof | Chemistry; Metallurgy | 0 | Active |
| US11501748B2 | Active noise control system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.