Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11019928 | Armrest and chair | Yuuichirou Takagi, Ryo Igarashi, Syouichi Izawa | 2021-06-01 |
| 11019930 | Load support structure for chair, load support body for chair, and chair | Syouichi Izawa | 2021-06-01 |
| 10966530 | Backrest, lumbar support, chair, attachment structure for optional member, optional member, and furniture | Shinpei Totsuka | 2021-04-06 |
| 10932575 | Armrest and chair | Ryo Igarashi, Syouichi Izawa | 2021-03-02 |