Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Optical device with an asymmetric dual quantum well structure

Optical device with an asymmetric dual quantum well structure

US Patent 5569934 · Granted Oct 29, 1996

Estimated economic value: $44,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Imaging device and electronic apparatus2025
Hydrotreating catalyst for hydrocarbon oil and method for producing same, and hy2017
Hydrotreating catalyst for hydrocarbon oil and method for producing same, and hy2016
Electromagnetic wave shielding material and display using the same2010
Image formation apparatus having getters spacers and wires2010
Electron-emitting device, electron source, and image-forming apparatus2010
Patterning method and methods for producing electro-optic device, color filter, 2009
Electron-emitting devices provided with a deposit between electroconductive film2008
Image formation apparatus having fluorescent material and black material2008
Semiconductor circuit2007
Image formation apparatus having electrically conductive spacer and external fra2007
Transparent conductive heat sealing material and carrier tape lid using same2005