Issued Patents 2005
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6966973 | Apparatus and process for producing (meth)acrylic acid | Sei Nakahara, Kazuhiko Sakamoto, Kenji Sanada, Masatoshi Ueoka | 2005-11-22 |
| 6946573 | Method for starting up reactor and reactor system | Takeshi Nishimura, Hideki Sogabe, Kazuhiko Sakamoto, Osamu Dodo | 2005-09-20 |
| 6930198 | Method for production of unsaturated carboxylic ester | Kazuto OKAZAKI, Kazuhiko Sakamoto, Yuji Miyahara | 2005-08-16 |
| 6927268 | Production process for water-absorbent resin | Kunihiko Ishizaki, Teruyuki Kanto | 2005-08-09 |
| 6891061 | Packed column and polymerizable compound treating method using the same | Takeshi Nishimura, Sei Nakahara, Osamu Dodo | 2005-05-10 |
| 6888025 | Method for absorbing acrylic acid and method for purifying acrylic acid | Harunori Hirao, Yoshitake Ishii, Takeshi Nishimura | 2005-05-03 |
| 6878239 | Process for inhibiting a polymerization in a vacuum section of an easily polymerizable compound purification system | Takeshi Nishimura | 2005-04-12 |
| 6848501 | Method for preventing plate type heat exchanger from blockage | Harunori Hirao, Sei Nakahara, Osamu Dodo, Tetsuji Mitsumoto, Takeshi Nishimura +2 more | 2005-02-01 |