Michio Fujiwara
23Patents
9h-index
53Co-inventors
78Inventor score
Filing activity: Feb 1, 1977 → Mar 9, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4995479A | Display guide apparatus of elevator and its display method | Performing Operations; Transporting | 100 | Expired |
| US4736586A | Seal mechanism for a Stirling engine | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4662176A | Heat exchanger for a Stirling engine | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5605058A | Air conditioning system, and accumulator therefor and manufacturing method of the accumulator | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4811563A | Vibration-reducing apparatus | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US6604031B2 | Train detection system and a train detection method | Performing Operations; Transporting | 17 | Expired |
| US4620418A | Stirling engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5630550A | Fuel injection system | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5981510A | Method for treating and improving diabetes | Human Necessities | 9 | Expired |
| US6230086A | Railway information transmission method and system | Electricity | 9 | Expired |
| US5483802A | Vuilleumier heat pump | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4623151A | Seal means for a stirling engine or the like | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6317664A | Train detection system and a train detection method | Performing Operations; Transporting | 7 | Expired |
| US6829526B2 | Train detection system and a train detection method cross reference to related application | Performing Operations; Transporting | 7 | Expired |
| US6230085A | Train detection system and a train detection method | Performing Operations; Transporting | 6 | Expired |
| US6470244B2 | Train detection system | Performing Operations; Transporting | 5 | Expired |
| US4112260A | AC type line concentrator | Electricity | 5 | Expired |
| US4711091A | Apparatus for preventing the rise of oil in a stirling engine | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6374165B1 | Railway information transmission method and system | Electricity | 4 | Expired |
| US7200470B2 | Train detection system and a train detection method | Performing Operations; Transporting | 4 | Expired |
| US5787910A | Washing apparatus | Human Necessities | 3 | Expired |
| US7027901B2 | Transmitter and receiver device for train detection | Performing Operations; Transporting | 2 | Expired |
| US6242431A | Method for treating liver dysfunction | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.