Taku Hirasawa
51Patents
9h-index
35Co-inventors
78Inventor score
Filing activity: Dec 12, 2002 → May 7, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7083270B2 | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus | Performing Operations; Transporting | 31 | Expired |
| US6969157B2 | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus | Performing Operations; Transporting | 15 | Expired |
| US7986343B2 | Multi-eye imaging apparatus | Electricity | 14 | Active |
| US7185540B2 | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus | Performing Operations; Transporting | 12 | Expired |
| US9515239B2 | Light-emitting device and light-emitting apparatus | Electricity | 11 | Active |
| US9618697B2 | Light directional angle control for light-emitting device and light-emitting apparatus | Electricity | 10 | Active |
| US10422990B2 | Optical scanning device that includes mirrors and optical waveguide region | Physics | 9 | Active |
| US7033001B2 | Piezoelectric element, ink jet head, angular velocity sensor, manufacturing method thereof, and ink jet type recording apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7518287B2 | Actuator fine motion mechanism including the actuator, and camera module including the fine motion mechanism | Electricity | 9 | Active |
| US7718940B2 | Compound-eye imaging apparatus | Electricity | 9 | Active |
| US10133144B2 | Optical scanning device including waveguide array | Physics | 8 | Active |
| US9203054B2 | Optical sheet and light emitting apparatus | Electricity | 7 | Active |
| US10877215B2 | Optical scanning device that includes waveguides | Physics | 5 | Active |
| US9880336B2 | Light-emitting device including photoluminescent layer | Electricity | 5 | Active |
| US7478558B2 | Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus | Emerging Cross-Sectional Technologies | 5 | Active |
| US9890912B2 | Light-emitting apparatus including photoluminescent layer | Electricity | 5 | Active |
| US7999873B2 | Imaging device with plural lenses and imaging regions | Electricity | 5 | Active |
| US9518215B2 | Light-emitting device and light-emitting apparatus | Electricity | 5 | Active |
| US10209509B1 | Optical scanning device that includes mirrors and optical waveguide region | Physics | 4 | Active |
| US10012780B2 | Light-emitting device including photoluminescent layer | Electricity | 4 | Active |
| US11256156B2 | Optical scanning device that includes waveguides | Physics | 3 | Active |
| US10488498B2 | Optical scanning system including optical scanning device and photoreceiver device | Physics | 2 | Active |
| US10182702B2 | Light-emitting apparatus including photoluminescent layer | Electricity | 2 | Active |
| US10094522B2 | Light-emitting device having photoluminescent layer | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9214649B2 | Light-emitting device | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.