MATSUSHIT ELECTRIC INDUSTRIAL CO., LTD.
95Patents
2Active
95Granted
40Portfolio score
Filing activity: Sep 16, 1975 → May 9, 2007 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6137539A | Digital television status display | Electricity | 240 | Expired |
| US6078829A | Measuring apparatus for biological information | Human Necessities | 163 | Expired |
| US6218753A | Motor using rotor including interior permanent magnet, and apparatus-driving-unit employing the same motor | Electricity | 109 | Expired |
| US6233251A | Multiplex transmission method and system, and audio jitter absorbing method used therein | Electricity | 87 | Expired |
| US6185365A | Multimedia optical disk, reproduction apparatus and method for achieving variable scene development based on interactive control | Electricity | 85 | Expired |
| US5885063A | Variable capacity scroll compressor | Mechanical Engineering; Lighting; Heating | 61 | Expired |
| US6330453A | Map information providing method and system and terminal device used therein | Physics | 60 | Expired |
| US6342932B1 | Liquid crystal display | Electricity | 55 | Expired |
| US7039781B2 | Flash memory apparatus and method for merging stored data items | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5389764A | Automatic cooking appliance employing a neural network for cooking control | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US5637393A | Magnetic recording medium and its manufacturing method | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4227117A | Picture display device | Electricity | 43 | Expired |
| US5678051A | Translating apparatus with special display mode for supplemented words | Physics | 41 | Expired |
| US5701066A | Control system for an induction motor | Electricity | 39 | Expired |
| US6206909A | Portable warmer suitable for a body | Human Necessities | 37 | Expired |
| US5158473A | Connector | Electricity | 35 | Expired |
| US5227608A | Laser ablation apparatus | Performing Operations; Transporting | 34 | Expired |
| US7046919B2 | Aroma diffuser | Human Necessities | 31 | Expired |
| US6285635A | Optical disk apparatus | Physics | 30 | Expired |
| US5946663A | Method of planning a production schedule and an apparatus for planning a production schedule | Physics | 26 | Expired |
| US5677935A | Sync detecting method and sync detecting circuit | Electricity | 25 | Expired |
| US5790569A | Method and apparatus for generating, recording and transmitting an error product code block having an improved check code arrangement | Electricity | 19 | Expired |
| US5918795A | Soldering alloy, cream solder and soldering method | Performing Operations; Transporting | 19 | Expired |
| US5633211A | Semiconductor device and process | Electricity | 19 | Expired |
| US4918644A | System containing loop shaped transmission paths for transmitting data packets using a plurality of latches connected in cascade fashion | Physics | 18 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.