Hajime Tabata
38Patents
9h-index
26Co-inventors
75Inventor score
Filing activity: Jul 7, 1988 → Apr 26, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6876845B1 | Radio communication system for vehicle | Electricity | 79 | Expired |
| US5019733A | AC generator | Electricity | 43 | Expired |
| US7130436B1 | Helmet with built-in speaker system and speaker system for helmet | Electricity | 35 | Expired |
| US4870545A | Headlight control apparatus for motorcycles | Performing Operations; Transporting | 33 | Expired |
| US5599085A | Motorcycle headlight and method for controlling a light distribution thereof | Performing Operations; Transporting | 18 | Expired |
| US4922390A | Head lamp for motor-bicycle with slant angle correction | Performing Operations; Transporting | 12 | Expired |
| US7575518B2 | Video game control system and a video game control server | Human Necessities | 12 | Active |
| US6054936A | Moving body detection system | Physics | 11 | Expired |
| US7887421B2 | Video game control system and a video game control server | Human Necessities | 9 | Active |
| US5857764A | Vehicle light bulb | Electricity | 7 | Expired |
| US6587042B2 | Automatic accident informing apparatus for two-wheel vehicle | Physics | 6 | Expired |
| US5850124A | Automobile lamp bulb with welded low beam shield | Electricity | 6 | Expired |
| US6309093A | Motorcycle headlight | Performing Operations; Transporting | 6 | Expired |
| US6150931A | Mobile unit detection system | Physics | 6 | Expired |
| US6243025A | Moving body detection system | Physics | 6 | Expired |
| US6950635B1 | Vehicular communication apparatus | Performing Operations; Transporting | 5 | Expired |
| US5975732A | Motorcycle headlight | Performing Operations; Transporting | 5 | Expired |
| US6008584A | Headlamp for a vehicle | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7722467B2 | Video game control system and a video game control server | Human Necessities | 5 | Active |
| US8088007B2 | Network game not requiring continuous connectivity | Electricity | 5 | Active |
| US6507280B2 | Device for mounting a communication unit to a helmet | Human Necessities | 5 | Expired |
| US7233815B2 | Radio communication system for vehicle | Electricity | 5 | Expired |
| US6158671A | Headlamp cleaner | Performing Operations; Transporting | 5 | Expired |
| US8602859B2 | Video game device, video game implementation method and program | Human Necessities | 4 | Active |
| US7107209B2 | Speech communication apparatus with gain control for clear communication | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.