Kenichiro Ito
27Patents
11h-index
30Co-inventors
75Inventor score
Filing activity: Mar 20, 1978 → Sep 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4901831A | Clutch | Mechanical Engineering; Lighting; Heating | 60 | Expired |
| US5025902A | Bidirectional differential clutch | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US6388201B2 | Wired circuit board | Electricity | 27 | Expired |
| US6123183A | Rotation transmission device | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4852707A | Reversible self-locking clutch | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6244403A | Power transmission device for hybrid cars | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5286239A | Rotation transmitting device having differently rotating output shafts | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5016740A | Torque responsive engaging clutch | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5135084A | Clutch | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5355748A | Rotation transmitting device for an interaxle gearless differential | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5269399A | Device for transmitting driving force | Performing Operations; Transporting | 11 | Expired |
| US5203232A | Rotation transmitting device | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6198052A | Circuit board with terminal accommodating level differences | Electricity | 11 | Expired |
| US6035988A | Four-wheel drive control system | Performing Operations; Transporting | 10 | Expired |
| US9341888B2 | Light reflection sheet, light source device, and display device | Electricity | 9 | Active |
| US8632200B2 | Light source device and display device | Physics | 7 | Active |
| US8807771B2 | Light source device and display device | Physics | 5 | Active |
| US4187750A | Machine for automatically cutting an elongate material into lengths | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9104064B2 | Light source device, illuminating device, backlight device, liquid crystal display device and display device | Physics | 2 | Active |
| US6536570B2 | Power transmission device for hybrid cars | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6076420A | Power transmission changeover devices for four-wheel drive vehicles | Emerging Cross-Sectional Technologies | 1 | Expired |
| US11401311B2 | Recombinant activin A precursor protein | Chemistry; Metallurgy | 1 | Active |
| US10555413B2 | Inverter | Electricity | 0 | Active |
| US9994616B2 | c-Met protein agonist | Chemistry; Metallurgy | 0 | Active |
| US9039220B2 | Light source device and display device | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.