TSUBAKIMOTO CHAIN CO.
903Patents
400Active
903Granted
56Portfolio score
Filing activity: Jan 10, 1975 → Dec 17, 2024 · 118 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5197767A | Flexible supporting sheath for cables and the like | Emerging Cross-Sectional Technologies | 140 | Expired |
| US6897395B2 | Mail sorter | Emerging Cross-Sectional Technologies | 129 | Expired |
| US5046764A | Flexible supporting sheath for cables and the like | Emerging Cross-Sectional Technologies | 127 | Expired |
| US4541029A | Over-load and light-load protection for electric machinery | Electricity | 105 | Expired |
| US5215338A | Flexible supporting sheath for cables and the like | Emerging Cross-Sectional Technologies | 84 | Expired |
| US6240797A | Linear actuator with anti-reverse-rotation mechanism | Emerging Cross-Sectional Technologies | 83 | Expired |
| US4593239A | Method and apparatus for controlling travel of an automatic guided vehicle | Physics | 66 | Expired |
| US6773297B2 | Closed cable drag chain | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US4593238A | Method and apparatus for controlling travel of an automatic guided vehicle | Physics | 62 | Expired |
| US5318482A | Chain guide having improved arm-shoe attachment feature | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US6073747A | Article diverging sorting apparatus | Performing Operations; Transporting | 55 | Expired |
| US6249743A | Method and apparatus of detecting a position of a movable body | Physics | 53 | Expired |
| US7174799B2 | Hydraulic tensioner | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US5239160A | Five-axis table for laser beam machine tool | Performing Operations; Transporting | 53 | Expired |
| US4763219A | Overload protection for DC motor-driven linear actuator | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US5038290A | Managing method of a run of moving objects | Physics | 51 | Expired |
| US4910419A | Overload detection mechanism for motor-driven linear actuator | Electricity | 51 | Expired |
| US6573451B2 | Protective guide for cables and the like | Electricity | 50 | Expired |
| US6383103B1 | Hydraulic tensioner | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US5851084A | Rotor fixture | Emerging Cross-Sectional Technologies | 47 | Expired |
| US8888631B2 | Sprocket and chain transmission | Mechanical Engineering; Lighting; Heating | 46 | Active |
| US5045032A | Chain guide having shoe made of plastics | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US6398682B1 | Hydraulic tensioner with relief valve | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US5523663A | Method for controlling a manipulator relative to a moving workpiece | Physics | 44 | Expired |
| US4874352A | Fluidic tensioner | Mechanical Engineering; Lighting; Heating | 43 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.