TOKYO ELECTRON DEVICE LIMITED
17Patents
2Active
17Granted
35Portfolio score
Filing activity: Jul 22, 1998 → Oct 12, 2018 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6199122A | Computer system, external storage, converter system, and recording medium for converting a serial command and data standard to a parallel one | Physics | 78 | Expired |
| US6226202A | Flash memory card including CIS information | Physics | 63 | Expired |
| US6477616B1 | Storage device, storage system, memory management method, recording medium, and computer data signal | Physics | 49 | Expired |
| US6411552B1 | Data processing system, block erasing type memory device and memory medium storing program for controlling memory device | Physics | 48 | Expired |
| US6457126B1 | Storage device, an encrypting/decrypting device and method of accessing a non-volatile memory | Electricity | 48 | Expired |
| US6804730B1 | Access control device, access control method, recording medium, and computer data signal for controlling allowance of access to storage area using certification data | Physics | 27 | Expired |
| US6209097A | Content protection method and content protection system | Electricity | 25 | Expired |
| US7242632B2 | Memory device, memory managing method and program | Physics | 16 | Expired |
| US6490685B1 | Storage device having testing function and memory testing method | Physics | 16 | Expired |
| US6477632B1 | Storage device and accessing method | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7191296B2 | Data writing apparatus, data writing method, and program | Physics | 7 | Expired |
| US7007140B2 | Storage device, storage device controlling method, and program | Physics | 5 | Expired |
| US6415371B1 | Storage system, storage device, storage medium controller, access device, method for protecting data, storage medium and computer data signal | Physics | 5 | Expired |
| US6401166B2 | Data processing system, block erasing type memory device and memory storing program for controlling memory device | Physics | 3 | Expired |
| US6687783B1 | Access apparatus and method for accessing a plurality of storage device having different characteristics | Physics | 2 | Expired |
| US7536109B2 | Optical network system and device, and method for controlling optical network and device | Electricity | 1 | Active |
| US11551112B2 | Information processing apparatus and storage medium | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.