Inventor

CHO JAE RYUN

KR2 patents

⚠️ This page may combine multiple inventors who share the name “CHO JAE RYUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OHFA TECH INC

1 patent

US10453359B2Oct 22, 2019

Braille learning apparatus and braille learning method using the same

OHFA TECH INC3 citations54

OHFATECH INC

1 patent

US10424223B2Sep 24, 2019

Braille actuator and braille outputting device using same

OHFATECH INC2 citations54