Koji Numata
31Patents
11h-index
28Co-inventors
75Inventor score
Filing activity: Mar 25, 1980 → Feb 5, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4891559A | Apparatus for controlling a headlight of a vehicle | Performing Operations; Transporting | 382 | Expired |
| US5360268A | Ultrasonic temperature measuring apparatus | Physics | 152 | Expired |
| US4672565A | Direction detecting system for vehicles | Physics | 68 | Expired |
| US4497034A | Heading detecting apparatus | Physics | 39 | Expired |
| US4367453A | Automotive driving direction and position indicator apparatus | Physics | 25 | Expired |
| US4555761A | Direction detection for a vehicle | Physics | 21 | Expired |
| US4642776A | Automobile route information display | Physics | 19 | Expired |
| US4663719A | Method and apparatus for display of distance and direction to destination | Physics | 14 | Expired |
| US4435760A | Running position indicator apparatus | Physics | 14 | Expired |
| US4480226A | Apparatus for indicating the direction of a vehicle with abnormal field sensing circuits | Physics | 13 | Expired |
| US4563685A | Return route indication device for automotive vehicles | Physics | 11 | Expired |
| US8253096B2 | Time-of-flight mass spectrometer | Electricity | 10 | Active |
| US4378581A | Demagnetizing apparatus for use in vehicles | Electricity | 10 | Expired |
| US4898462A | Device for detecting a transmissivity of a substance | Physics | 9 | Expired |
| US4399615A | Direction indicator | Physics | 8 | Expired |
| US4495467A | Apparatus for simultaneous measurement of magnetic field components in mutually perpendicular directions | Physics | 8 | Expired |
| US4379366A | Direction finding system | Physics | 7 | Expired |
| US4633709A | Vehicle turn angle detecting device | Physics | 7 | Expired |
| US5410564A | Direct current electric furnace for melting metal | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4388666A | Demagnetizer for use in vehicles | Electricity | 6 | Expired |
| US7633453B2 | On-vehicle film antenna | Electricity | 2 | Active |
| US4358886A | Method of mounting an azimuth indicator in an automobile | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4472682A | Apparatus for generating a parallel magnetic field within a magnetically shielded housing | Physics | 2 | Expired |
| US7446719B2 | Mobile antenna mounted on a vehicle body | Electricity | 2 | Active |
| US4523386A | Heading detecting apparatus | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.