Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8158086 | Polyisocyanate production system and gas treatment apparatus | Takashi Yamaguchi, Takuya Saeki | 2012-04-17 |
| 7897805 | Polyisocyanate production method and polyisocyanate production system | Masaaki Sasaki, Takao Naito, Fumiaki Hirata, Masato Saruwatari, Hirofumi Takahashi +4 more | 2011-03-01 |
| 7718145 | Polyisocyanate production system and gas treatment apparatus | Masaaki Sasaki, Hirofumi Takahashi, Kouji Maeba, Takao Naito, Takashi Yamaguchi +1 more | 2010-05-18 |
| 6459004 | Cleavage method of bisphenols | Yuzo Ono, Kiyoshi Mizuma, Mikio Shibasaki | 2002-10-01 |