Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548141 | Carpet material and method of producing same | Kyoichi Watanabe, Satoshi Nagashima, Masashi Itou, Kouichi Nemoto | 2003-04-15 |
| 6312542 | Fibrous acoustical material for reducing noise transmission and method for producing same | Katsumi Morohoshi, Hiroki Nagayama, Kouichi Nemoto | 2001-11-06 |
| 6165921 | Fibrous acoustical material for reducing noise transmission and method for producing the same | Katsumi Morohoshi, Hiroki Nagayama, Kouichi Nemoto | 2000-12-26 |
| 5569525 | Ultra-bulky fiber aggregate and production method thereof | Yugoro Masuda | 1996-10-29 |