Ken Nishimura
79Patents
14h-index
91Co-inventors
87Inventor score
Filing activity: May 2, 1991 → Feb 18, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6448550B1 | Method and apparatus for measuring spectral content of LED light source and control thereof | Electricity | 245 | Expired |
| US6344641B1 | System and method for on-chip calibration of illumination sources for an integrated circuit display | Physics | 104 | Expired |
| US6735328B1 | Personal viewing device with system for providing identification information to a connected system | Physics | 103 | Expired |
| US7525398B2 | Acoustically communicating data signals across an electrical isolation barrier | Electricity | 88 | Active |
| US6441829B1 | Pixel driver that generates, in response to a digital input value, a pixel drive signal having a duty cycle that determines the apparent brightness of the pixel | Physics | 78 | Expired |
| US5326179A | Apparatus for producing an information recording card | Performing Operations; Transporting | 66 | Expired |
| US7331245B2 | Pressure distribution sensor and sensing method | Physics | 54 | Expired |
| US6165645A | Polymer electrolyte and lithium polymer battery using the same | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6956996B2 | Tri-state optical systems and methods | Physics | 40 | Expired |
| US6905796B2 | Lithium secondary battery | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5933680A | Image processing apparatus and method for optimizing an image formation condition | Physics | 31 | Expired |
| US6362573B1 | Apparatus and method for monitoring the life of arc lamp bulbs | Emerging Cross-Sectional Technologies | 25 | Expired |
| US7082238B2 | Self-aligning optical interconnect utilizing conformal materials | Physics | 25 | Expired |
| US5978206A | Stacked-fringe integrated circuit capacitors | Electricity | 22 | Expired |
| US6169505A | Multi-channel, parallel, matched digital-to-analog conversion method, multi-channel, parallel, matched digital-to-analog converter, and analog drive circuit incorporating same | Electricity | 13 | Expired |
| US7380722B2 | Stabilized laser pointer | Physics | 12 | Expired |
| US7471040B2 | Mixed-color light emitting diode apparatus, and method for making same | Electricity | 12 | Expired |
| US6858829B2 | Avalanche photodiode array biasing device and avalanche photodiode structure | Electricity | 11 | Expired |
| US6780678B2 | Cooling of optoelectronic elements | Electricity | 9 | Expired |
| US7889186B2 | Pen input device and method for tracking pen position | Physics | 8 | Active |
| US5717958A | Automatic photographic processor apparatus, paper feeder device, outdoor installation booth, and object image capturing mechanism used in the automatic photographic processor apparatus, and indentification photograph strip with cutline markings | Physics | 7 | Expired |
| US6055011A | Image processing apparatus which performs density control for each of plural colors of recording material | Physics | 7 | Expired |
| US8849602B2 | Calibrating reconstructed signal using multi-tone calibration signal | Physics | 7 | Active |
| US7220959B2 | Differential color sensor without filters | Electricity | 7 | Expired |
| US7551158B2 | Display device and method for providing optical feedback | Physics | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.