Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11392223 | Retractable active stylus with dual writing function | Donald Santos, Abhijat Vijay Mangrulkar | 2022-07-19 |
| 5662424 | Mechanical pencil | Kageyama Shuhei, Ebinuma Tadayoshi | 1997-09-02 |
| 5367282 | Electric motor protector sensor | — | 1994-11-22 |