Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12137815 | Seat cushion | Hiroshi Ohno, Kiyofumi Tamiaki, Ryuji Kajiwara, Shuhei Yasuhara | 2024-11-12 |
| 8127386 | Air mattress | Ryuji Kajiwara, Shunji Hama | 2012-03-06 |
| 7621008 | Bed | Yoichiro Matsuura | 2009-11-24 |
| 7090647 | Bedsore main-factor measuring device | Hidekazu Okazaki | 2006-08-15 |
| 6151740 | Air mat | Mikihiko Morimoto | 2000-11-28 |
| D419817 | Air cushion bed | Mikihiko Morimoto | 2000-02-01 |