NIPPON THOMPSON CO., LTD.
471Patents
124Active
471Granted
46Portfolio score
Filing activity: Oct 24, 1979 → May 23, 2023 · 49 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7234873B2 | Rolling-contact bearing containing solid lubricant therein | Mechanical Engineering; Lighting; Heating | 113 | Expired |
| US5927858A | Linear motion rolling guide unit | Mechanical Engineering; Lighting; Heating | 56 | Expired |
| US5760500A | XY table using a linear electromagnetic actuator | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5606256A | Linear encoder and a guide unit on which it is equipped | Physics | 47 | Expired |
| US5684344A | Drive unit | Electricity | 46 | Expired |
| US5207115A | X-Y drive apparatus | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5168767A | Compact ball screw assembly | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6326708A | Slider unit with built-in moving-coil linear motor | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5831352A | Drive apparatus of a direct current linear motor having two or more movable tables | Electricity | 37 | Expired |
| US4763886A | XY-positioning table | Performing Operations; Transporting | 34 | Expired |
| US5302031A | Stud type track roller rolling bearing | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5701042A | Linear direct current motor | Electricity | 27 | Expired |
| US4799803A | Ball spline linear motion rolling guide unit | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6082899A | Linear motion guide unit | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6573623B2 | Sliding means with built-in moving-magnet linear motor | Electricity | 25 | Expired |
| US6100681A | Linear encoding device with staggered detectors | Electricity | 24 | Expired |
| US6240796A | Slide apparatus | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5051635A | Ball-splined shaft assembly | Electricity | 23 | Expired |
| US6634246B2 | Recirculating-ball nut and screw set with lubricating means | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5842283A | Position detection apparatus along with a track rail unit and guide unit on which it is equipped | Physics | 23 | Expired |
| US6149307A | Relatively movable unit with rolling elements | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5267796A | Linear motion guide unit having an anti-vibration mechanism | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4606654A | Cross roller bearing | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6348746B1 | Slider unit with built-in moving-coil linear motor | Electricity | 22 | Expired |
| US5647245A | Drive apparatus having a ball screw using ultrasonic motors concentric with its nuts | Emerging Cross-Sectional Technologies | 22 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.