Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7632342 | Valve outlet cap for toxic-gas container | Maki Egami, Ryota Tada | 2009-12-15 |
| 6309446 | Activated carbon for adsorptive storage of gaseous compound | Yuji Shibsawa, Kazuhiro Hasumi, Koji Ishimori, Satoshi Ibaraki, Akira Takauchi | 2001-10-30 |