Akifumi Fujima
21Patents
3h-index
22Co-inventors
63Inventor score
Filing activity: May 30, 2002 → Sep 7, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US10871775B2 | Control device for propelling system | Emerging Cross-Sectional Technologies | 7 | Active |
| US11021220B2 | Boat maneuvering support device | Performing Operations; Transporting | 5 | Active |
| US7488227B2 | Outboard engine unit | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US6889677B2 | Capacitor discharge ignition device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US11248611B2 | Control device for general purpose engine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10961969B2 | Startup assistance device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7380533B2 | Outboard motor provided with internal combustion engine having electrical equipment box | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11535348B2 | Sailing assisting system for vessel | Performing Operations; Transporting | 1 | Active |
| US7571704B2 | Internal combustion engine provided with electrical equipment holder | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10699581B2 | Small boat navigation assist system | Emerging Cross-Sectional Technologies | 1 | Active |
| US11851152B2 | Outboard motor | Performing Operations; Transporting | 0 | Active |
| US11512676B2 | Detection apparatus and control apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US11486329B2 | Load operating device | Electricity | 0 | Active |
| US11526592B2 | Working machine management system and working machine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11536217B2 | Information providing system | Physics | 0 | Active |
| US6645023B2 | Outboard motor electronic part unit | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US11535354B2 | Control system for outboard motor | Physics | 0 | Active |
| US10989159B2 | Control device of general-purpose engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8944864B2 | Outboard motor control apparatus | Performing Operations; Transporting | 0 | Active |
| US11198495B2 | Boat maneuvering support device and outboard motor | Performing Operations; Transporting | 0 | Active |
| US11345454B2 | Outboard motor | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.