Issued Patents 2022
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D968408 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2022-11-01 |
| D966268 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2022-10-11 |
| 11385725 | Electronic erasing device and writing information processing system | Ryoji Kamiyama, Masamitsu Ito, Shigeru Yamashita, Fujii Kosuke | 2022-07-12 |
| 11327584 | Integrated circuit and electronic pen | Shigeru Yamashita, Masamitsu Ito | 2022-05-10 |
| D947192 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2022-03-29 |
| D946576 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2022-03-22 |