Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Projection type display device having a mask for cutting off unnecessary light parts of displayed picture

Projection type display device having a mask for cutting off unnecessary light parts of displayed picture

US Patent 5285268 · Granted Feb 8, 1994

Estimated economic value: $63,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Display device, display method, and computer-readable storage medium2025
Camera device and camera system2025
Head-mounted display2024
Head-mounted display2024
Control device and control method for power conversion device2024
Image forming apparatus2023
Electrophotographic image forming apparatus2023
Head mounted display, head mounted display system, and setting method for head m2022
Image forming apparatus including a regulating portion used in mounting a cartri2022
Image forming apparatus having dual operation2022
Image forming apparatus and cartridge2021
Electrophotographic image forming apparatus having a driving-force transmission 2020