KOBE STEEL LTD.
1,887Patents
1,487Active
1,887Granted
61Portfolio score
Filing activity: May 5, 1971 → Mar 23, 2023 · 409 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6849231B2 | α-β type titanium alloy | Chemistry; Metallurgy | 77 | Expired |
| US6824601B2 | Hard film for cutting tools, cutting tool coated with hard film, process for forming hard film, and target used to form hard film | Emerging Cross-Sectional Technologies | 77 | Expired |
| USD636803S1 | Industrial robot | General | 57 | Expired |
| US7365810B2 | Display device and method for production thereof | Physics | 52 | Active |
| US4297093A | Combustion method for reducing NOx and smoke emission | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US3992168A | Heat exchanger with rectification effect | Emerging Cross-Sectional Technologies | 51 | Expired |
| USD776801S1 | Heat exchanger tube | General | 47 | Active |
| USD668684S1 | Screw compressor | General | 42 | Active |
| US6481690B2 | Car body energy absorber and bumper stay | Performing Operations; Transporting | 38 | Expired |
| US7525206B2 | Power source device for working machine | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4336441A | Welding process | Performing Operations; Transporting | 38 | Expired |
| US6254665A | Method for producing reduced iron agglomerates | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| USD857241S1 | Beam | General | 36 | Active |
| US7111630B2 | High pressure processing apparatus and method | Emerging Cross-Sectional Technologies | 35 | Expired |
| US8487206B2 | Joint product between steel product and aluminum material, spot welding method for the joint product, and electrode chip for use in the joint product | Emerging Cross-Sectional Technologies | 34 | Active |
| US7683370B2 | Source/drain electrodes, transistor substrates and manufacture methods, thereof, and display devices | Electricity | 34 | Active |
| US7098539B2 | Electronic device, method of manufacture of the same, and sputtering target | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4017339A | Flux for use in submerged arc welding of steel | Performing Operations; Transporting | 33 | Expired |
| US4319270A | Surface inspection system for hot radiant material | Physics | 33 | Expired |
| US7262085B2 | Display device | Physics | 33 | Expired |
| US4150801A | Automatic winding machine for wire-like object | Performing Operations; Transporting | 31 | Expired |
| US4046988A | Method of preventing base metal end crack in arc welding and end tab used therefor | Performing Operations; Transporting | 31 | Expired |
| US4658970A | Deflection reduction module for boom hoist cylinder of mobile crane | Performing Operations; Transporting | 31 | Expired |
| US7150496B2 | Panel structure for car body hood | Performing Operations; Transporting | 30 | Expired |
| US3954921A | Gas-liquid contacting method and scrubber used therefor | Emerging Cross-Sectional Technologies | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.