Osaka Fuji Kogyo Kabushiki Kaisya
12Patents
0Active
12Granted
33Portfolio score
Filing activity: May 16, 1977 → Oct 28, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5520145A | Valve timing controller | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5072091A | Method and apparatus for metal surface process by laser beam | Physics | 22 | Expired |
| US4654477A | Electric conductor | Electricity | 14 | Expired |
| US5505168A | Variable lift height valve driving device | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5119068A | Rear spoiler for use in automobile | Performing Operations; Transporting | 11 | Expired |
| US5136793A | Heat recovery system for a pulse combustion drying apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5881475A | Non-draining type human waste disposal method by pulse combustion drying | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4752463A | Method of producing hydrogen and material used therefor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5092766A | Pulse combustion method and pulse combustor | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4110863A | Apparatus for cleaning inner surfaces of molds | Performing Operations; Transporting | 3 | Expired |
| US4764657A | Automatic tab plate welding apparatus | Performing Operations; Transporting | 3 | Expired |
| US5651796A | Method for producing low bulk density hollow fine powder of alkali metal compound | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.