Tetsuo Yamagata
16Patents
9h-index
24Co-inventors
68Inventor score
Filing activity: Feb 19, 1982 → Mar 20, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6154006A | Battery rental system | Emerging Cross-Sectional Technologies | 94 | Expired |
| US4558460A | Audio apparatus for vehicle | Performing Operations; Transporting | 58 | Expired |
| US4878045A | Locking cable for antitheft devices | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4972595A | Inclination sensor | Physics | 27 | Expired |
| US4910496A | Direction indicating flasher device for vehicles with filament failure indication | Performing Operations; Transporting | 19 | Expired |
| US4848502A | Constant vehicle speed retaining device for motorcycle | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4546746A | Injector for multicylinder internal combustion engines | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6054936A | Moving body detection system | Physics | 11 | Expired |
| US4672941A | Ignition system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4428227A | Intake pipe pressure indicating system for an internal combustion engine of a vehicle | Physics | 8 | Expired |
| US4497301A | Electronic fuel injection control system for internal combustion engines, including means for detecting engine operating condition parameters | Mechanical Engineering; Lighting; Heating | 7 | 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 |
| US6356855B1 | Moving body detection system | Physics | 2 | Expired |
| US4972918A | Engine output control device and constant vehicle speed control release switch | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.