Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11670891 | Electrical connector with water evacuation features and connector device using the same | Takao Asano, Shuya Yokobori, Koji Minami, Tatsuya Morishita | 2023-06-06 |
| 7097371 | Keytop | Seigo Hasunuma | 2006-08-29 |
| 5799772 | Pantograph type keyboard switch | Seiki Katakami, Seigo Hasunuma | 1998-09-01 |
| 5758763 | Pantograph type keyboard switch | Seiki Katakami, Seigo Hasunuma | 1998-06-02 |