Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8806686 | Breathable cushion and method of manufacturing the same | Hirotaka Kawasaki, Masao Tada, Ryoichi Wakayama | 2014-08-19 |
| 7678323 | Method of forming a groove | Masao Tada | 2010-03-16 |
| 5804292 | Laminated articles method of making | Katsunori Ishitoya, Hiroyuki Kato, Kazunori Kuze, Yoshihiko Hiraiwa, Makoto Horiba | 1998-09-08 |
| 5401556 | Laminated wood-based fibrous web and molded article formed of such web and process for manufacturing article | Katsunori Ishitoya, Takahisa Suzuki | 1995-03-28 |