Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9393722 | Method of production of web member including tow | Yuji Yamashita, Kazuhiko Hoshika | 2016-07-19 |
| 9212011 | Stacking device and method of production of web member | Takayuki Matsumoto, Yoshio Yano | 2015-12-15 |
| 6000878 | Cover for underground structures | Junji Wada, Kyozo Sahara | 1999-12-14 |
| 5997212 | Cover for underground structures, body thereof and frame therefor | Junji Wada, Kyozo Sahara, Atsushi Nishitani, Koji Terada | 1999-12-07 |