Issued Patents 2023
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11853489 | Electronic pen of capacitive system, electronic pen cartridge of capacitive system, charging tray for electronic pen, and charging tray for electronic pen cartridge | — | 2023-12-26 |
| D1001130 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2023-10-10 |
| 11762487 | Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic pen | Shigeru Yamashita, Masamitsu Ito | 2023-09-19 |
| 11714498 | Electronic pen core body and electronic pen | Ryoji Kamiyama, Masamitsu Ito, Daisuke Watanabe | 2023-08-01 |
| 11669176 | Integrated circuit and electronic pen | Shigeru Yamashita, Masamitsu Ito | 2023-06-06 |
| 11662834 | Electronic erasing device and writing information processing system | Ryoji Kamiyama, Masamitsu Ito, Shigeru Yamashita, Fujii Kosuke | 2023-05-30 |
| 11600195 | Digital input device, digital correction device and distance learning system | — | 2023-03-07 |
| D978966 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2023-02-21 |
| D978243 | Cartridge for an electronic pen | Ryoji Kamiyama, Masamitsu Ito | 2023-02-14 |
| 11573649 | Electronic pen core body and electronic pen | Ryoji Kamiyama, Masamitsu Ito, Daisuke Watanabe | 2023-02-07 |
| 11550405 | Learning support system | Tatsunosuke Tobita | 2023-01-10 |