Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
1,387Patents
1Active
1,387Granted
47Portfolio score
Filing activity: Sep 15, 1972 → Nov 17, 2005 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5703461A | Inductive coupler for electric vehicle charger | Emerging Cross-Sectional Technologies | 222 | Expired |
| US5912552A | DC to DC converter with high efficiency for light loads | Emerging Cross-Sectional Technologies | 218 | Expired |
| US5562426A | Scroll type refrigerant compressor | Mechanical Engineering; Lighting; Heating | 131 | Expired |
| US4749340A | Piston type compressor with improved suction reed valve stopper | Emerging Cross-Sectional Technologies | 121 | Expired |
| US4511974A | Load condition indicating method and apparatus for forklift truck | Performing Operations; Transporting | 117 | Expired |
| US6230507A | Hybrid compressor and control method | Mechanical Engineering; Lighting; Heating | 101 | Expired |
| US5036935A | Travel control device for unmanned vehicle | Emerging Cross-Sectional Technologies | 98 | Expired |
| US5617003A | Method and apparatus for charging a battery of an electric vehicle | Emerging Cross-Sectional Technologies | 92 | Expired |
| US6310465A | Battery charging device | Emerging Cross-Sectional Technologies | 81 | Expired |
| US5917601A | Position difference detecting device and method thereof | Physics | 78 | Expired |
| US6010312A | Control valve unit with independently operable valve mechanisms for variable displacement compressor | Mechanical Engineering; Lighting; Heating | 74 | Expired |
| USD381993S | Compressor for a vehicle air conditioner | General | 72 | Expired |
| US5059098A | Apparatus for varying capacity of scroll type compressor | Mechanical Engineering; Lighting; Heating | 72 | Expired |
| US6459234B2 | Charger having secured power supplier and cable | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4520443A | Control device for loading and unloading mechanism | Performing Operations; Transporting | 68 | Expired |
| US4328678A | Refrigerant compressor protecting device | Mechanical Engineering; Lighting; Heating | 68 | Expired |
| US6484520B2 | Displacement control apparatus for variable displacement compressor, displacement control method and compressor module | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US6469481B1 | Parallel RC current detection circuit and DC/DC converter with a parallel RC current detection circuit | Emerging Cross-Sectional Technologies | 63 | Expired |
| USD427409S | Forklift truck | General | 63 | Expired |
| US6057675A | DC/DC converter | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6457319B1 | Air conditioner and control valve in variable displacement compressor | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US6454551B2 | Seal structure in a scroll type compressor | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US4687419A | Variable angle wobble plate type compressor which maintains the crankcase pressure at a predetermined value | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US7295227B1 | Apparatus for assisting steering of vehicle when backing | Physics | 56 | Expired |
| US6361283B1 | Displacement control valve | Mechanical Engineering; Lighting; Heating | 56 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.