Tomohiro Ito
111Patents
16h-index
129Co-inventors
89Inventor score
Filing activity: Jan 11, 1996 → Nov 26, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6728388B1 | Headphone | Electricity | 107 | Expired |
| US8411893B2 | Headphone | Electricity | 77 | Active |
| US6104824A | Headphone device with headband arranged around occipital regional of the head | Electricity | 70 | Expired |
| US7120267B2 | Headset | Electricity | 61 | Expired |
| US8009853B2 | Headphone device | Electricity | 57 | Active |
| US6385325B1 | Headphone device | Electricity | 54 | Expired |
| US6195441A | Headphone device | Electricity | 40 | Expired |
| US6868164B2 | Head phone device | Electricity | 39 | Expired |
| US8363875B2 | Headphone | Electricity | 34 | Active |
| US6744901B2 | Headphone | Electricity | 31 | Expired |
| US7492917B2 | Headphone with cord take-up device | Electricity | 28 | Expired |
| US5677027A | Sound insulating structure | Emerging Cross-Sectional Technologies | 27 | Expired |
| USD429206S | Wheel | General | 27 | Expired |
| US8611581B2 | Earphone device | Electricity | 25 | Active |
| US8229154B2 | Headphone device | Electricity | 19 | Active |
| US8565468B2 | Headphone | Electricity | 16 | Active |
| US7802746B2 | Hanging device | Electricity | 15 | Active |
| US6542615B1 | Headphone | Electricity | 13 | Expired |
| US7489795B2 | Headphone apparatus | Electricity | 13 | Active |
| US6470263B2 | Average vehicle speed calculation device | Physics | 13 | Expired |
| USD823278S1 | Headphone | General | 12 | Active |
| US7686588B2 | Liquid chemical supply system having a plurality of pressure detectors | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US10277974B2 | Headphone | Electricity | 9 | Active |
| US7599509B2 | Headphone, electronic device, cord winding device, and cord winding method | Electricity | 9 | Active |
| US9020181B2 | Earphone device | Electricity | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.