Issued Patents 2003
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666956 | Method for distilling polymerizable compound or liquid containing polymerizable compound | Takeshi Nishimura | 2003-12-23 |
| 6667419 | Method for absorption of acrylic compound and apparatus therefor | Takeshi Nishimura, Misao Inada, Kazuhiko Sakamoto | 2003-12-23 |
| 6651731 | Method for cooling heating grade heat exchanger in unsteady state | Takeshi Nishimura, Sei Nakahara, Motomi Nakamura | 2003-11-25 |
| 6642414 | Method for production of (meth) acrylic acid | Tetsuji Mitsumoto, Sei Nakahara, Tatsuaki Yoshimura | 2003-11-04 |
| 6641700 | Purifying apparatus possessing vapor dispersing device | Hajime Matsumoto, Takeshi Nishimura | 2003-11-04 |
| 6638432 | Method of treating waste liquid | Takeshi Nishimura, Kazuto OKAZAKI, Kiyotaka Watanabe | 2003-10-28 |
| 6635148 | Method for refining easily polymerizable matter-contained substance and apparatus therefor | Takeshi Nishimura | 2003-10-21 |
| 6632329 | Distillation apparatus and distilling method | Noriaki Mizutani, Kazuhiko Sakamoto, Kenji Sanada | 2003-10-14 |
| 6627047 | Method for preventing polymerization in thin-film type evaporating device | Yuichi Ijiri, Takeshi Nishimura | 2003-09-30 |
| 6620969 | Shell-and-tube heat exchanger and method for inhibiting polymerization in the shell-and-tube heat exchanger | Takeshi Nishimura | 2003-09-16 |
| 6613196 | Method for stopping purifying column | Kei Hamamoto, Sei Nakahara, Misao Inada | 2003-09-02 |
| 6588450 | Storage tank for viscous oil containing easily polymerizable compounds | Yuichi Ijiri, Sei Nakahara, Fumio Munechika | 2003-07-08 |
| 6585862 | Apparatus and method for handling easily polymerizable compound | Takeshi Nishimura | 2003-07-01 |
| 6566551 | Method for preventing effluent gas pipe from blocking | Takeshi Nishimura, Sei Nakahara, Misao Inada, Harunori Hirao, Mamoru Takamura | 2003-05-20 |
| 6525216 | Method of manufacturing (meth)acrylic acid | Takeshi Nishimura | 2003-02-25 |