Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4259092 | Adsorptive material | Tatsuki Matsuo, Yoichi Suzuki | 1981-03-31 |
| 4181513 | Carbon adsorptive filter material with layers of reinforcing non woven fabrics needle punched | Takashi Fukuda, Masayoshi Shimada, Shoichi Iwahori | 1980-01-01 |