Issued Patents 2003
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664418 | Method for inhibiting polymerization of a vinyl compound | Kazuhiko Sakamoto, Kazuo Ohkouchi, Masahiro Uemura, Masatoshi Ueoka | 2003-12-16 |
| 6660881 | Process for producing (meth)acrylic ester | Hajime Matsumoto, Tetsuya Kajihara, Yasuhiro Shingai, Masatoshi Ueoka, Yukihiro Yoneda +2 more | 2003-12-09 |
| 6657079 | Method for mixing gases and apparatus therefor | Tetsuji Mitsumoto, Tatsuaki Yoshimura, Takeshi Nishimura | 2003-12-02 |
| 6651731 | Method for cooling heating grade heat exchanger in unsteady state | Takeshi Nishimura, Yukihiro Matsumoto, Motomi Nakamura | 2003-11-25 |
| 6649028 | Column treating process and apparatus thereof | Kazuhiko Sakamoto, Masatoshi Ueoka, Naoto Kasaya | 2003-11-18 |
| 6649787 | Method for preparing (meth) acrylic acid ester | Masatoshi Ueoka | 2003-11-18 |
| 6642414 | Method for production of (meth) acrylic acid | Tetsuji Mitsumoto, Yukihiro Matsumoto, Tatsuaki Yoshimura | 2003-11-04 |
| 6613196 | Method for stopping purifying column | Kei Hamamoto, Yukihiro Matsumoto, Misao Inada | 2003-09-02 |
| 6599397 | Method for preventing polymerization of (meth)acrylic acid and esters thereof and method for the production thereof | Kazuhiko Sakamoto, Tomohiro Nakae, Kazuo Okochi, Masahiro Uemura | 2003-07-29 |
| 6588450 | Storage tank for viscous oil containing easily polymerizable compounds | Yuichi Ijiri, Yukihiro Matsumoto, Fumio Munechika | 2003-07-08 |
| 6566551 | Method for preventing effluent gas pipe from blocking | Takeshi Nishimura, Yukihiro Matsumoto, Misao Inada, Harunori Hirao, Mamoru Takamura | 2003-05-20 |
| 6540881 | Method for refining (meth)acrylic acid | Kazuhiko Sakamoto, Kouji Ueno, Masatoshi Ueoka | 2003-04-01 |