Hidetaka Nagayasu
13Patents
6h-index
11Co-inventors
63Inventor score
Filing activity: Apr 19, 1996 → Jun 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5660441A | Tilt-type headrest | Performing Operations; Transporting | 19 | Expired |
| US9272643B2 | Vehicle seat | Performing Operations; Transporting | 11 | Active |
| US9550440B2 | Conveyance seat | Performing Operations; Transporting | 9 | Active |
| US9561741B2 | Vehicle seat | Performing Operations; Transporting | 9 | Active |
| US6513878B2 | Attachment structure of functional member | Performing Operations; Transporting | 6 | Expired |
| US6499806B2 | Attachment structure of spring unit | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9332845B2 | Vehicle seat and seatback-associated ottoman device | Performing Operations; Transporting | 5 | Active |
| US9616784B2 | Vehicle seat | Performing Operations; Transporting | 4 | Active |
| US9701221B2 | Vehicle seat | Human Necessities | 4 | Active |
| US9873356B2 | Seat back interlocking ottoman device and vehicle seat | Performing Operations; Transporting | 3 | Active |
| US9597985B2 | Conveyance seat | Performing Operations; Transporting | 1 | Active |
| US9566889B2 | Vehicle seat | Performing Operations; Transporting | 0 | Active |
| US11273745B2 | Vehicle seat, headrest and headrest control system | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.