TOTTORI SANYO ELECTRIC CO., LTD.
166Patents
17Active
166Granted
44Portfolio score
Filing activity: May 4, 1976 → Feb 27, 2009 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5607227A | Linear light source | Emerging Cross-Sectional Technologies | 240 | Expired |
| US4941072A | Linear light source | Emerging Cross-Sectional Technologies | 202 | Expired |
| US5119220A | Liquid crystal display device with a phase plate for shadow compensation | Physics | 126 | Expired |
| US4633280A | Unit of light emitting diode arrays | Emerging Cross-Sectional Technologies | 108 | Expired |
| US5034858A | Electronic information equipment | Physics | 60 | Expired |
| US5515420A | Cordless telephone apparatus | Electricity | 59 | Expired |
| US5379322A | Baseband signal generator for digital modulator | Electricity | 58 | Expired |
| US5214306A | Light emitting diode | Electricity | 52 | Expired |
| US4081752A | Digital frequency synthesizer receiver | Electricity | 45 | Expired |
| USD541682S1 | Navigation system monitor | General | 43 | Expired |
| US5737541A | Box for functional expansion of a portable electronic equipment | Physics | 38 | Expired |
| US5555114A | Liquid crystal display with reflective color filters | Physics | 38 | Expired |
| USD353246S | Electric iron | General | 38 | Expired |
| US6100767A | Phase-locked loop with improved trade-off between lock-up time and power dissipation | Electricity | 37 | Expired |
| US6168124A | Image receiving monitor using LCD | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5764648A | Method and apparatus for generating a transmission timing signal in a wireless telephone | Electricity | 34 | Expired |
| US4734714A | Optical print head with LED diode array | Electricity | 34 | Expired |
| USD377929S | Computer | General | 32 | Expired |
| US6088652A | Navigation device | Physics | 32 | Expired |
| US6236571A | Attachment device of portable electronic equipment and feature expanding unit of portable electronic equipment, and separation type feature expanding device of portable electronic equipment comprising attachment device and feature expanding unit | Physics | 32 | Expired |
| USD537566S1 | Handle for hairdryer | General | 31 | Expired |
| US5729179A | Variable Frequency Divider | Electricity | 29 | Expired |
| US4845405A | Monolithic LED display | Electricity | 29 | Expired |
| USD547602S1 | Steaming plate for rice cooker | General | 28 | Expired |
| US6370093B1 | Optical disc device | Physics | 27 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.