Inventor
USHIKI Takashi
JP4 patents
Patents
4 patentsUS10922596B2Feb 16, 2021
Two-dimensional code, two-dimensional code output system, two-dimensional code output method, two-dimensional code reading system, and two-dimensional code reading method
OPTOELECTRONICS CO LTD0 citations53
US10664731B2May 26, 2020
Two-dimensional code, two-dimensional code output system, two-dimensional code output method, two-dimensional code reading system, and two-dimensional code reading method
OPTOELECTRONICS CO LTD0 citations42
US10679023B2Jun 9, 2020
Two-dimensional code, two-dimensional code output system, two-dimensional code output method, two-dimensional code reading system, and two-dimensional code reading method
OPTOELECTRONICS CO LTD0 citations32
US9767335B2Sep 19, 2017
Image processing method for optical information reader and optical information reader
OPTOELECTRONICS CO LTD0 citations32