Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8704000 | Method for crystallizing (meth)acrylic acid and method for regulating content of polymerization inhibitor in product (meth)acrylic acid | Kazuhiko Sakamoto, Koji Ueno, Yoshitake Ishii, Satoshi Nakagawa | 2014-04-22 |
| 7511172 | Method for production of (meth)acrylic acid | Kouji Ueno, Naoki Serata, Takeshi Yokogoshiya | 2009-03-31 |
| 7429678 | Composite-oxide catalyst and process for production of acrylic acid using said catalyst | Michio Tanimoto | 2008-09-30 |
| 7332624 | Method for production of acrylic acid | Takeshi Nishimura, Yukihiro Matsumoto, Kenji Sanada | 2008-02-19 |
| 7332626 | Method for production of (meth) acrylic acid | Kouji Ueno, Naoki Serata, Takeshi Yokogoshiya | 2008-02-19 |
| 7326810 | Method for starting up reactor | Yukihiro Matsumoto, Sei Nakahara, Kunihiko Suzuki | 2008-02-05 |
| 7321060 | Method for production of acrylic acid | Naoki Serata, Kouji Ueno, Takeshi Yokogoshiya | 2008-01-22 |
| 7205429 | Method for disposal of waste from acrylic acid process and acrylic ester process | Yukihiro Matsumoto, Takeshi Nishimura, Kenji Sanada | 2007-04-17 |
| 7183428 | Method for production of acrylic acid | Kouji Ueno, Naoki Serata, Takeshi Yokogoshiya | 2007-02-27 |
| 7151194 | Method for production of acrylic acid | Kouji Ueno, Naoki Serata, Takeshi Yokogoshiya | 2006-12-19 |
| 7109372 | Method for production of acrylic acid | Yukihiro Matsumoto, Kenji Sanada, Takeshi Nishimura | 2006-09-19 |
| 7102030 | Method for managing operation of gas phase reaction apparatus | Kenji Sanada, Yukihiro Matsumoto, Takeshi Nishimura | 2006-09-05 |
| 7038079 | Method for production of acrylic acid | Michio Tanimoto | 2006-05-02 |
| 6888025 | Method for absorbing acrylic acid and method for purifying acrylic acid | Yoshitake Ishii, Yukihiro Matsumoto, Takeshi Nishimura | 2005-05-03 |
| 6848501 | Method for preventing plate type heat exchanger from blockage | Yukihiro Matsumoto, Sei Nakahara, Osamu Dodo, Tetsuji Mitsumoto, Takeshi Nishimura +2 more | 2005-02-01 |
| 6825381 | Method and apparatus for absorbing (meth) acrylic acid | — | 2004-11-30 |
| 6713648 | Method for absorbing acrylic acid and method for purifying acrylic acid | Yoshitake Ishii, Yukihiro Matsumoto, Takeshi Nishimura | 2004-03-30 |
| 6566551 | Method for preventing effluent gas pipe from blocking | Takeshi Nishimura, Yukihiro Matsumoto, Sei Nakahara, Misao Inada, Mamoru Takamura | 2003-05-20 |