Pioneer Corporation
2,816Patents
1,137Active
2,816Granted
54Portfolio score
Filing activity: Sep 3, 1974 → Jan 16, 2024 · 672 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7274363B2 | Panel display driving device and driving method | Physics | 254 | Expired |
| US6249214A | Image processing apparatus, image processing method, navigation apparatus, program storage device and computer data signal embodied in carrier wave | Physics | 225 | Expired |
| US6485418B2 | Health monitoring system | Emerging Cross-Sectional Technologies | 224 | Expired |
| US7245277B2 | Display panel and display device | Physics | 182 | Expired |
| US6873117B2 | Display panel and display device | Physics | 181 | Expired |
| US7489784B2 | Automatic sound field correcting device and computer program therefor | Electricity | 177 | Active |
| US6553309B2 | Navigation system | Physics | 142 | Expired |
| US6677173B2 | Method of manufacturing a nitride semiconductor laser with a plated auxiliary metal substrate | Electricity | 126 | Expired |
| US6633280B1 | Touch panel device | Physics | 115 | Expired |
| US6380689B1 | Driving apparatus for active matrix type luminescent panel | Physics | 112 | Expired |
| US7006758B1 | Data recording medium, and data reproducing apparatus | Physics | 108 | Expired |
| US6856433B2 | Holographic recording medium and holographic recording/reproducing apparatus using the same | Physics | 107 | Expired |
| US6541130B2 | Organic electroluminescence multi-color display and method of fabricating the same | Emerging Cross-Sectional Technologies | 106 | Expired |
| US7188356B1 | System for and method of transmitting and receiving program, center device, and terminal device | Electricity | 96 | Expired |
| US6591172B2 | AUTOMATIC VEHICLE GUIDANCE SYSTEM, CONTROL APPARATUS IN AUTOMATIC VEHICLE GUIDANCE SYSTEM, AUTOMATIC VEHICLE GUIDANCE METHOD, AND COMPUTER-READABLE DATA RECORDED MEDIUM IN WHICH AUTOMATIC VEHICLE GUIDANCE SYSTEM PROGRAM IS RECORDED | Physics | 93 | Expired |
| US6449095B1 | Optical pickup | Physics | 89 | Expired |
| US6429584B2 | Organic electroluminescence display panel and method of manufacturing the same | Electricity | 86 | Expired |
| USD564990S1 | Television receiver | General | 85 | Expired |
| US6563459B2 | Portable terminal apparatus and the positional information communication method using it | Physics | 84 | Expired |
| US7123243B2 | Touch panel integrated type display apparatus | Electricity | 83 | Expired |
| US6270839A | Device for feeding raw material for chemical vapor phase deposition and method therefor | Chemistry; Metallurgy | 83 | Expired |
| US6941222B2 | Navigation system, server system for a navigation system, and computer-readable information recorded medium in which destination prediction program is recorded | Physics | 80 | Expired |
| US8868861B2 | Information recording apparatus and copy management program for caching content data of digital content | Physics | 79 | Active |
| US7589714B2 | Tactile display device and touch panel apparatus with tactile display function using electrorheological fluid | Physics | 78 | Active |
| US7500755B2 | Display apparatus and image processing system | Electricity | 74 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.