Toshimitsu Oka
17Patents
11h-index
28Co-inventors
64Inventor score
Filing activity: Feb 27, 1991 → Oct 29, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5355511A | Position monitoring for communicable and uncommunicable mobile stations | Electricity | 118 | Expired |
| US6304168A | Door approach communication apparatus and door lock control apparatus | Physics | 57 | Expired |
| US5769471A | Apparatus for unlocking a door lock for a vehicle | Emerging Cross-Sectional Technologies | 54 | Expired |
| US5402441A | Signal receiver for global positioning system | Physics | 51 | Expired |
| US6002341A | Door lock control apparatus for a vehicle | Physics | 31 | Expired |
| US5896090A | Occupant sensing apparatus | Performing Operations; Transporting | 24 | Expired |
| US5159257A | Vehicle power supply apparatus for protecting a battery from excessive discharge | Electricity | 23 | Expired |
| US5657232A | Onboard positioning system | Physics | 17 | Expired |
| US5631838A | Apparatus for verifying GPS satellite data | Physics | 14 | Expired |
| US6320341A | Control device for movable member | Performing Operations; Transporting | 13 | Expired |
| US5895900A | Pressure sensitive seat switch with air vent passages | Electricity | 12 | Expired |
| US6256869A | Electronic-component mounting system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6172473A | Device for determining rotational number of DC motors | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5965856A | Pressure sensitive switch | Performing Operations; Transporting | 5 | Expired |
| US5749173A | Power window regulator apparatus | Electricity | 4 | Expired |
| US5377015A | Image processing device for converting a scanned image into a monochrome image | Electricity | 1 | Expired |
| US5689811A | Communication system for communicating information ascertaining why reply information was not transmitted | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.