Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8393438 | Sound absorbing material, multilayer sound absorbing material, molded product of multilayer sound absorbing material, sound absorbing interior material, and sound absorbing floor covering material | Masanori Ogawa, Makoto Fujii | 2013-03-12 |
| 8312963 | Sound absorbing skin material and sound absorbing material utilizing the same | Masanori Ogawa, Makoto Fujii | 2012-11-20 |
| 8215451 | Impact and sound absorbing material and sound absorbing structure | Yasuhiko Nishimura, Masanori Ogawa, Makoto Fujii | 2012-07-10 |