Tatsuhiko Fukuoka
39Patents
13h-index
39Co-inventors
77Inventor score
Filing activity: Nov 9, 1978 → Jun 8, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4958712A | Wet clutch device | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US4334926A | Bearing material | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4641570A | Swash plate type compressor having a center cavity in surface of piston shoe | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4877813A | Bearing resin material | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4235481A | Bearing device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4470184A | Bearing of an internal combustion engine and process for producing the same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4941919A | Copper-based sliding material and method for producing the same | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4307998A | Swash-plate-type compressor for air-conditioning vehicles | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4423879A | Mechanical seal | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4471032A | Aluminum base bearing alloy and bearing composite | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5217814A | Sintered sliding material | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4309064A | Bearing of an internal combustion engine and process for producing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4407513A | Mechanical seal | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4326758A | Thrust bearing with tapered lands | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4244679A | Swash-plate-type compressor for air-conditioning vehicles | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4435482A | Sliding member and process for producing the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5312117A | Mechanical seal | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4437215A | Thrust bearing with tapered lands | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4806308A | Aluminum bearing alloy | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4737539A | Bearing resin material | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4522513A | Tapered-land thrust bearing device | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4471033A | Al-Si-Sn Bearing alloy and bearing composite | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4471029A | Al-Si-Sn Bearing Alloy and bearing composite | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4343479A | Mechanical seals | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4698179A | Electric conductive and sliding resin material | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.