Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11142134 | Holder device | Takako Yamada, Yoshinari Maeda, Yukinori Kawamura | 2021-10-12 |
| 11139973 | Locking and unlocking system and key unit | Hiroko Tsujimura, Yuichiro Haruna, Satoru Maegawa | 2021-10-05 |
| 11094149 | Locking and unlocking system, server used for locking and unlocking system and method for executing locking and unlocking system | Yuichiro Haruna | 2021-08-17 |
| 11052830 | Display holder | Takako Yamada, Yoshinari Maeda, Yukinori Kawamura | 2021-07-06 |