Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6138419 | Building panel obtained by riveting method | Tetsushi Matsumura, Kenjiro Komatsu, Yoshihiro Hase | 2000-10-31 |
| 5893245 | Panel with holding frame | Katuyuki Hagihara, Hiromitsu Iida, Katsuyuki Maruta, Shoichi Yamada, Yuji Shimizu | 1999-04-13 |