Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11452427 | Cleaning sheet | Shinya Izumi, Naoki Shintani | 2022-09-27 |
| 11439290 | Cleaning tool | Naoki Shintani, Shinya Izumi | 2022-09-13 |
| 11382482 | Cleaning sheet | Naoki Shintani | 2022-07-12 |
| 11317781 | Cleaning tool | Naoki Shintani | 2022-05-03 |