Naoki Tokitsu
10Patents
9h-index
18Co-inventors
69Inventor score
Filing activity: Jan 3, 1977 → Sep 13, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4500868A | Automotive driving instruction system | Performing Operations; Transporting | 106 | Expired |
| US5525991A | Mobile object identification system | Physics | 71 | Expired |
| US6937162B2 | In-vehicle apparatus and service providing system | Physics | 51 | Expired |
| US5489898A | Task completion confirmation system for vehicles | Physics | 39 | Expired |
| US7106212B2 | Mobile radio communication for automatic toll collection system | Physics | 23 | Expired |
| US5337066A | Antenna system with a limitable communication area | Electricity | 19 | Expired |
| US4449206A | Portable memory device | Physics | 15 | Expired |
| US4137553A | Method and apparatus for magnetically recording vehicle running conditions | Physics | 12 | Expired |
| US4757188A | Information reading/processing system for recorded information using fluophor | Physics | 10 | Expired |
| US4390905A | Magnetic card recording apparatus | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.