Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11170244 | Device and method for analyzing state of manual work by worker, and work analysis program | Ryo Ozawa, Tsu Ryo, Kenichi Yoshida, Yousuke Yamaguchi, Takuya Sakai +2 more | 2021-11-09 |
| 10204249 | Information code reading system and information code reader | — | 2019-02-12 |
| 10147028 | Method and apparatus for producing information code having an image display region with a code figure | Kunihiko Ito, Kenichi Yoshida, Masami Tanaka, Takuya Yoda | 2018-12-04 |
| 10062022 | Information code, information code producing method, information code reader, and system which uses information code | Masami Tanaka, Kunihiko Ito, Takuya Yoda, Kenichi Yoshida | 2018-08-28 |
| 9704081 | Information code, information code producing method, information code reader, and system which uses information code | Masami Tanaka, Takuya Yoda, Kunihiko Ito, Kenichi Yoshida, Takao Ushijima | 2017-07-11 |
| 7503492 | Optical information reading apparatus and related information reading method | Takeshi Matushima | 2009-03-17 |
| 7240842 | Optical information reading apparatus and optical information reading method | Masahiro Hara | 2007-07-10 |
| 5726435 | Optically readable two-dimensional code and method and apparatus using the same | Masahiro Hara, Tadao Nojiri, Takayuki Nagaya, Yuji Uchiyama | 1998-03-10 |
| 5691527 | Two dimensional code reading apparatus | Masahiro Hara | 1997-11-25 |