Takeo Yasuda
56Patents
10h-index
50Co-inventors
81Inventor score
Filing activity: Mar 27, 1979 → Mar 6, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6175282A | Method for calibrating a VCO characteristic and automatically calibrated PLL having a VCO | Electricity | 49 | Expired |
| US5629586A | Compact fluorescent lamp unit having first and second sealed end portions separated by a support member | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5821795A | Circuit for cancelling the DC offset in a differential analog front end of a read channel | Electricity | 21 | Expired |
| US4297173A | Method for determining ammonia and sensor therefor | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5828170A | Fluorescent lamp unit and lighting apparatus having the fluorescent lamp unit | Electricity | 19 | Expired |
| US6437502B1 | Selfballasted fluorescent lamp having specified tube geometry, luminous flux, lamp efficiency and power requirements | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6259300A | Differential input interface circuit and method for adjusting DC levels of differential input signals | Electricity | 14 | Expired |
| US6417615B1 | Fluorescent lamp with auxiliary amalgam secured to single lead wire | Electricity | 12 | Expired |
| US6089749A | Byte synchronization system and method using an error correcting code | Electricity | 11 | Expired |
| US6794801B2 | Compact selfballasted fluorescent lamp and luminaire | Electricity | 10 | Expired |
| US7067981B2 | Compact fluorescent lamp, self-ballasted fluorescent lamp and luminaire | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6229774A | Method and apparatus for a phase locked loop | Physics | 9 | Expired |
| US5138223A | Tubular fluorescent lamp with intermediate electrode | Electricity | 9 | Expired |
| US4384936A | System for determining the concentration of an L-amino acid in fermentation | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7053554B2 | Bulb-shaped fluorescent lamp and illumination device | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6781315B2 | Compact fluorescent lamp, self-ballasted fluorescent lamp and luminaire | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4299669A | Method for determining the concentration of an L-amino acid in fermentation | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8086989B2 | Structure for glitchless clock multiplexer optimized for synchronous and asynchronous clocks | Physics | 5 | Active |
| US7679408B2 | Glitchless clock multiplexer optimized for synchronous and asynchronous clocks | Physics | 4 | Active |
| US5252890A | Compact type fluorescent lamp device having crooked arc path | Electricity | 3 | Expired |
| US10671911B2 | Current mirror scheme for an integrating neuron circuit | Physics | 3 | Active |
| US7268494B2 | Compact fluorescent lamp and luminaire using the same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7042158B2 | Compact fluorescent lamp, self-ballasted fluorescent lamp and luminaire | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9021000B2 | High speed and low power circuit structure for barrel shifter | Physics | 2 | Active |
| US6956327B2 | Compact fluorescent lamp, self-ballasted fluorescent lamp and luminaire | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.