Toshio Maejima
27Patents
9h-index
13Co-inventors
68Inventor score
Filing activity: Sep 26, 1995 → Nov 25, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6018262A | CMOS differential amplifier for a delta sigma modulator applicable for an analog-to-digital converter | Electricity | 96 | Expired |
| US5973536A | Switched capacitor filter | Electricity | 27 | Expired |
| US5757299A | Analog-Digital converter using delta sigma modulation digital filtering, and gain-scaling | Electricity | 24 | Expired |
| US5888080A | Low insertion pressure connector | Electricity | 19 | Expired |
| US7482870B2 | Class D amplifier | Electricity | 18 | Active |
| US7167046B2 | Class-D amplifier | Electricity | 17 | Expired |
| US6061279A | Delay circuit for analog signals | Physics | 12 | Expired |
| US5696509A | Digital to analog converter using capacitors and switches for charge distribution | Electricity | 12 | Expired |
| US5940019A | Delta-sigma A/D converter | Electricity | 11 | Expired |
| US5699017A | Automatic gain control circuit | Electricity | 8 | Expired |
| US7183840B2 | Class-D amplifier | Electricity | 8 | Expired |
| US6956431B2 | Pulse width modulation amplifier | Electricity | 7 | Expired |
| US6791392B2 | Circuit for shifting an input signal level including compensation for supply voltage variation | Electricity | 5 | Expired |
| US8299853B2 | Class D amplifier | Electricity | 5 | Active |
| US5949360A | Analog/digital converter utilizing time-shared integrating circuitry | Electricity | 4 | Expired |
| US8289075B2 | Class-D amplifier | Electricity | 4 | Active |
| US6542033B2 | Differential amplifier circuit requiring small amount of bias current in a non-signal mode | Electricity | 3 | Expired |
| US7215191B2 | Device for amplitude adjustment and rectification made with MOS technology | Electricity | 3 | Expired |
| US6788792B1 | Device for amplitude adjustment and rectification made with MOS technology | Electricity | 3 | Expired |
| US8054129B2 | Class D amplifier | Electricity | 2 | Active |
| US9000824B2 | Offset cancel circuit | Electricity | 2 | Active |
| US7449948B2 | Amplifier | Electricity | 1 | Active |
| US6696877B2 | Level shift circuit | Electricity | 1 | Expired |
| US7671673B2 | Class-D amplifier | Electricity | 1 | Active |
| US8653803B2 | Voltage generation circuit | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.