Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7023429 | Touch panel and method of making the same | — | 2006-04-04 |
| 6677542 | Touch panel | — | 2004-01-13 |
| 6552281 | Folding keyboard | Takashi Niiyama | 2003-04-22 |
| 6068416 | Keyboard switch | Kiyomi Kumamoto, Seigo Hasunuma | 2000-05-30 |
| 5799772 | Pantograph type keyboard switch | Yutaka Sanda, Seigo Hasunuma | 1998-09-01 |
| 5758763 | Pantograph type keyboard switch | Yutaka Sanda, Seigo Hasunuma | 1998-06-02 |
| 5436413 | Multiple staged rotary switch | — | 1995-07-25 |