Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Optical encoder

Optical encoder

US Patent 6831267 · Granted Dec 14, 2004

Estimated economic value: $145,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical encoder2006
Interference device, position detecting device, positioning device and informati2003
Displacement information measuring apparatus with hyperbolic diffraction grating2001
Position detecting apparatus, positioning apparatus, and information recording a2000
Optical displacement measurement apparatus and information recording apparatus1999
Displacement detection apparatus and drive control apparatus using the same cons1999
Information recording apparatus1999
Rotation detector and controller for detecting rotation information using a grat1999
Rotational displacement information detection apparatus1999
Optical displacement measuring apparatus including a light-emitting element and 1999
Optical type sensor for use as an optical measuring head or optical pickup1998
Displacement information detection apparatus, scale used in the apparatus, and d1997