KOMATSU LTD.
2,745Patents
1,779Active
2,745Granted
59Portfolio score
Filing activity: Dec 31, 1979 → Aug 22, 2023 · 372 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7228505B2 | Display device for working machine | Performing Operations; Transporting | 835 | Expired |
| US5825981A | Robot system and robot control device | Emerging Cross-Sectional Technologies | 279 | Expired |
| US6347521B1 | Temperature control device and method for manufacturing the same | Electricity | 149 | Expired |
| US6246932A | Vehicle monitor for controlling movements of a plurality of vehicles | Physics | 126 | Expired |
| US6879910B2 | System and method for monitoring remotely located objects | Physics | 99 | Expired |
| US7210326B2 | Work transfer apparatus for transfer press | Performing Operations; Transporting | 98 | Expired |
| US6539294B1 | Vehicle guidance system for avoiding obstacles stored in memory | Physics | 98 | Expired |
| US6256594A | Machine fault monitoring apparatus and method | Physics | 97 | Expired |
| US6292725A | Interference preventing device for vehicle | Physics | 92 | Expired |
| US6012004A | System and method for managing time for vehicle fault diagnostic apparatus | Physics | 91 | Expired |
| US5726414A | Plasma torch with swirling gas flow in a shielding gas passage | Electricity | 84 | Expired |
| US6247538A | Automatic excavator, automatic excavation method and automatic loading method | Physics | 80 | Expired |
| US6725581B2 | Construction equipment | Emerging Cross-Sectional Technologies | 79 | Expired |
| US6857494B2 | Steering-wheel revolution number correction system of all-wheel-drive vehicle | Performing Operations; Transporting | 77 | Expired |
| US5605641A | Method and apparatus for laser marking a continuously moving workpiece | Performing Operations; Transporting | 77 | Expired |
| US6321147A | Unmanned vehicle running system | Physics | 75 | Expired |
| US5682854A | Variable compression ratio engine | Emerging Cross-Sectional Technologies | 74 | Expired |
| US6484078B1 | Vehicle travel route control system | Physics | 74 | Expired |
| US6708787B2 | Hybrid construction equipment | Emerging Cross-Sectional Technologies | 68 | Expired |
| US7086226B2 | Construction machine | Mechanical Engineering; Lighting; Heating | 68 | Expired |
| US6454527B2 | Noise reduction mechanism of fan device and molding method of porous damping material therefor | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US6052644A | Apparatus and method for limiting vehicle speed of a working vehicle | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US8533018B2 | System for construction machine maintenance based on predicted service life | Emerging Cross-Sectional Technologies | 65 | Active |
| USD463462S1 | Operator cab for power shovel | General | 64 | Expired |
| US4815911A | Device for torsion-proof connection of an element in a robot arm or the like | Emerging Cross-Sectional Technologies | 63 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.