Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172332 | Chair backrest device | Hiroshi Masunaga, Ryo Igarashi | 2012-05-08 |
| 7887135 | Headrest device in a chair | — | 2011-02-15 |
| 7878598 | Base plate for a chair | — | 2011-02-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172332 | Chair backrest device | Hiroshi Masunaga, Ryo Igarashi | 2012-05-08 |
| 7887135 | Headrest device in a chair | — | 2011-02-15 |
| 7878598 | Base plate for a chair | — | 2011-02-01 |