Kazumasa Takata
39Patents
8h-index
52Co-inventors
78Inventor score
Filing activity: May 8, 1996 → Oct 3, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6809829B1 | Method and apparatus for evaluating aberrations of optical element and method and apparatus for adjusting optical unit and lens | Physics | 55 | Expired |
| US5980054A | Panel-form illuminating system | Physics | 47 | Expired |
| US6068382A | Panel-form illuminating system | Physics | 34 | Expired |
| US5894345A | Optical method of detecting defect and apparatus used therein | Physics | 30 | Expired |
| US9255490B2 | Gas turbine and operating method thereof | Mechanical Engineering; Lighting; Heating | 26 | Active |
| US9512781B2 | Cooling structure for recovery-type air-cooled gas turbine combustor | Mechanical Engineering; Lighting; Heating | 25 | Active |
| US5981941A | Optical encorder for detection having a moving reference point | Physics | 20 | Expired |
| US5986727A | Back light illuminator for liquid crystal display apparatus | Physics | 14 | Expired |
| US5754341A | Phase grating, its fabricating method, optical encoder, motor using the optical encoder, and robot using the motor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5694218A | Optical encoder including a plurality of phase adjusting gratings | Physics | 7 | Expired |
| US6538749B1 | Method and apparatus for evaluating aberrations of optical element for use with optical device by using phase differences determined by overlapping two diffracted lights to form a sharing image | Physics | 5 | Expired |
| US11656473B2 | Lightguide lighting system for display system | Physics | 3 | Active |
| US5999249A | Position detecting element and range sensor | Physics | 3 | Expired |
| US10358923B2 | Cooling device, gas turbine installation provided with same, and method for operating cooling device | Emerging Cross-Sectional Technologies | 2 | Active |
| US10619564B2 | Gas turbine and component-temperature adjustment method therefor | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10379282B2 | Multicolor display apparatus and method for setting gradation value of multicolor display apparatus | Physics | 2 | Active |
| US11098868B2 | Lighting device | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10527776B2 | Display device | Physics | 1 | Active |
| US7561350B2 | Optical unit and its manufacturing method | Performing Operations; Transporting | 1 | Expired |
| US7379172B2 | Method and apparatus for inspection of optical component | Physics | 1 | Active |
| US10247030B2 | Gas turbine and operating method thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11054101B2 | Lighting device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10309245B2 | Gas turbine and operating method thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11422452B2 | Optical multiplexer and image projection apparatus using the same | Electricity | 0 | Active |
| US11274949B2 | Projection device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.