Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7074844 | Adhesives | Ritsuo Iwata, Hironao Nagashima, Kazunari Suzuki, Koji Nakajima | 2006-07-11 |
| 5058777 | Automatic method and apparatus for scattering wood pieces in production of a decorative board | Kaneo Omoto, Hironao Nagasima, Ritsuo Iwata | 1991-10-22 |
| 4963214 | Method for producing a wooden decorative article | Ritsuo Iwata, Kaneo Omoto, Hironao Nagashima, Koji Nakajima, Yutaka Miyamoto | 1990-10-16 |
| 4911969 | Decorative sheet and method of manufacturing the same | Hironao Nagashima, Ritsuo Iwata | 1990-03-27 |