Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11499266 | Grained artificial leather and method for manufacturing grained artificial leather | Kimio Nakayama, Hayaki SATO, Akihisa Iwamoto | 2022-11-15 |
| 11015288 | Grained artificial leather | Kimio Nakayama | 2021-05-25 |
| 5811488 | Polyvinyl alcohol powder | Takanori Kitamura, Yuji Takenouchi, Takanori Tsugiya, Hisamichi Yanai | 1998-09-22 |