TEC Co., Ltd.
126Patents
0Active
126Granted
42Portfolio score
Filing activity: Aug 4, 1972 → Jan 22, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5609223A | Checkout system with automatic registration of articles by bar code or physical feature recognition | Physics | 102 | Expired |
| US5602379A | Optical code reader | Physics | 92 | Expired |
| US5654533A | Apparatus and method for reading two-dimensional symbols | Physics | 90 | Expired |
| US5521364A | Product-selling-data processing apparatus having function for administering sales of article sold by the bundle and its method | Physics | 79 | Expired |
| US5468076A | Print gap adjusting device | Performing Operations; Transporting | 64 | Expired |
| US5703348A | Hand-held optical code reader | Physics | 55 | Expired |
| USD362673S | Label printer | General | 52 | Expired |
| US5679941A | Checkout device | Physics | 49 | Expired |
| US4582967A | Key switch assembly | Electricity | 44 | Expired |
| US5366550A | Latex modified cement-based thin set adhesive | Chemistry; Metallurgy | 44 | Expired |
| US6057651A | Lighting apparatus | Emerging Cross-Sectional Technologies | 44 | Expired |
| US6038149A | Lamp discharge lighting device power inverter | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6106092A | Driving method of an ink-jet head | Performing Operations; Transporting | 34 | Expired |
| US4427705A | Commestible package | Performing Operations; Transporting | 34 | Expired |
| US5560450A | Self-scanning checkout device | Physics | 34 | Expired |
| US5662190A | Self-scanning checkout apparatus having article passage detecting sensor | Human Necessities | 32 | Expired |
| US5723826A | Load cell unit | Physics | 32 | Expired |
| US5992746A | Optical code reader wherein guide light source is turned on before turn-on of an illumination light source and is turned off after turn-on of the illumination light source | Physics | 29 | Expired |
| US5616905A | Two-dimensional code recognition method | Physics | 29 | Expired |
| US5909781A | Power-assisting device for a bicycle and a bicycle equipped with the same | Performing Operations; Transporting | 28 | Expired |
| US5505550A | Printer and method of supplying continuous paper to printing portion | Performing Operations; Transporting | 28 | Expired |
| US5510607A | Optical code reader having an illumination light source emitting light for at least a preset period responsive to operation of a trigger switch | Physics | 27 | Expired |
| US5515094A | Ink jet printer | Performing Operations; Transporting | 27 | Expired |
| US5467116A | Ink jet printer with device for aligning an ink cartridge | Performing Operations; Transporting | 26 | Expired |
| US5508795A | Developing device and image forming apparatus with the same | Physics | 25 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.