Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11139973 | Locking and unlocking system and key unit | Yasuhisa Fujiwara, Hiroko Tsujimura, Yuichiro Haruna | 2021-10-05 |
| 10755505 | Locking and unlocking system, key unit, and server | Yasuhisa Fujiwara, Hiroko Tsujimura, Yuichiro Haruna | 2020-08-25 |
| 10529158 | Locking and unlocking system and key unit | Yasuhisa Fujiwara, Hiroko Tsujimura, Yuichiro Haruna | 2020-01-07 |
| 10529162 | Locking and unlocking system, key unit, and server | Yasuhisa Fujiwara, Hiroko Tsujimura, Yuichiro Haruna | 2020-01-07 |