Toru Udaka
30Patents
9h-index
28Co-inventors
75Inventor score
Filing activity: Mar 3, 1997 → Sep 7, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6631022B1 | Optical device, a fabrication method thereof, a driving method thereof and a camera system | Physics | 33 | Expired |
| US5880872A | Optical device and electrolytic solution | Physics | 23 | Expired |
| US6804037B1 | Light modulation apparatus and image pickup apparatus, and drive method thereof | Physics | 14 | Expired |
| US7057683B2 | Guest-host liquid crystal element with removable polarizer | Physics | 14 | Expired |
| US6720742B2 | Light control device, method for driving same and pickup device using the light control device | Physics | 13 | Expired |
| US6876412B2 | Guest-host liquid crystal element with removable polarizer | Physics | 13 | Expired |
| US7312914B2 | Electrochromic display device and electrodeposition-type display device | Physics | 10 | Expired |
| US5864420A | Optical unit and electrolytic solution | Physics | 10 | Expired |
| US7110155B2 | Light modulation apparatus, image pickup apparatus, and drive methods therefor | Physics | 9 | Expired |
| US7483116B2 | Electrical light control element, lens barrel, and imaging device | Electricity | 8 | Active |
| US6791657B2 | Liquid crystal display having liquid crystal cell gap variation | Physics | 8 | Expired |
| US6992808B2 | Electrochromic display device and electrodeposition-type display device | Physics | 8 | Expired |
| US6336753B1 | Optical device, a fabricating method thereof, a driving method thereof and a camera system | Physics | 8 | Expired |
| US7230598B2 | Electric dimming device and its driving method | Physics | 8 | Expired |
| US7573524B2 | Liquid crystal light control element, lens barrel, and imaging device | Physics | 7 | Active |
| US6045725A | Optical device and electrolytic solution | Physics | 6 | Expired |
| US10032834B2 | Light receiving/emitting element and light receiving/emitting apparatus | Electricity | 4 | Active |
| US9680104B2 | Photoelectric conversion device, solid-state image pickup unit, and electronic apparatus including ternary system of organic semiconductors | Emerging Cross-Sectional Technologies | 4 | Active |
| US6261478A | Optical device and electroytic solution | Physics | 3 | Expired |
| US7072091B2 | Display element and production thereof | Physics | 3 | Expired |
| US10199587B2 | Photoelectric conversion element, imaging device, and optical sensor | Emerging Cross-Sectional Technologies | 3 | Active |
| US10020347B2 | Solid-state image pickup device and electronic apparatus | Emerging Cross-Sectional Technologies | 3 | Active |
| US9362514B2 | Polarization organic photoelectric conversion device, method for producing polarization organic photoelectric conversion device, polarization optical device, imaging device, and electronic apparatus | Emerging Cross-Sectional Technologies | 2 | Active |
| US10236396B2 | Electronic device, solid state imaging apparatus, and method of producing electrode for electronic device | Emerging Cross-Sectional Technologies | 1 | Active |
| US10665802B2 | Photoelectric conversion element, imaging device, and optical sensor | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.