Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6984445 | Multi-layer sheet, a manufacturing method of the multi-layer sheet and a molding method of the multi-layer sheet | Kazuo Yamagata, Isao Higuchi, Michitaka Tsujimoto, Masashi Okabe, Yoshihiro Inui | 2006-01-10 |
| 6613172 | Process for producing foamable composite polyolefin resin sheet and composite foam | Michitaka Tsujimoto, Hiroyuki Kurio, Masashi Okabe | 2003-09-02 |