Issued Patents All Time
Showing 26–50 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6996803 | Program generation method | Tetsuya Masuishi, Takashi Okoda | 2006-02-07 |
| 6966973 | Apparatus and process for producing (meth)acrylic acid | Sei Nakahara, Yukihiro Matsumoto, Kenji Sanada, Masatoshi Ueoka | 2005-11-22 |
| 6946573 | Method for starting up reactor and reactor system | Yukihiro Matsumoto, Takeshi Nishimura, Hideki Sogabe, Osamu Dodo | 2005-09-20 |
| 6930198 | Method for production of unsaturated carboxylic ester | Kazuto OKAZAKI, Yukihiro Matsumoto, Yuji Miyahara | 2005-08-16 |
| 6911064 | Method and apparatus for the preparation of clean gases | Toshiaki Fujii, Tsukuru Suzuki, Hidetomo Suzuki | 2005-06-28 |
| 6899452 | Apparatus and method for preparation and supply of polymerization inhibitor | Kei Hamamoto, Takeshi Nishimura, Kunihiko Suzuki | 2005-05-31 |
| 6900346 | Method for decomposition of michael type adduct | Fumio Shibusawa, Naoki Serata | 2005-05-31 |
| 6888026 | Method for producing (meth)acrylic acid | Kazuo Ohkouchi, Tomohiro Nakae | 2005-05-03 |
| 6870066 | Method for decomposition of Michael type adduct | Fumio Shibusawa, Naoki Serata | 2005-03-22 |
| 6848501 | Method for preventing plate type heat exchanger from blockage | Harunori Hirao, Yukihiro Matsumoto, Sei Nakahara, Osamu Dodo, Tetsuji Mitsumoto +2 more | 2005-02-01 |
| 6831195 | Method for production of organic acid | Takeshi Nishimura, Tetsuji Mitsumoto, Hidefumi Haramaki | 2004-12-14 |
| 6787001 | Method for distilling (meth) acrylic acid solution | Sei Nakahara, Yukihiro Matsumoto, Kenji Sanada, Masatoshi Ueoka | 2004-09-07 |
| 6733570 | Method and apparatus for the preparation of clean gases | Toshiaki Fujii, Tsukuru Suzuki, Hidetomo Suzuki | 2004-05-11 |
| 6667419 | Method for absorption of acrylic compound and apparatus therefor | Yukihiro Matsumoto, Takeshi Nishimura, Misao Inada | 2003-12-23 |
| 6664418 | Method for inhibiting polymerization of a vinyl compound | Kazuo Ohkouchi, Masahiro Uemura, Sei Nakahara, Masatoshi Ueoka | 2003-12-16 |
| 6649028 | Column treating process and apparatus thereof | Sei Nakahara, Masatoshi Ueoka, Naoto Kasaya | 2003-11-18 |
| 6632329 | Distillation apparatus and distilling method | Noriaki Mizutani, Yukihiro Matsumoto, Kenji Sanada | 2003-10-14 |
| 6599397 | Method for preventing polymerization of (meth)acrylic acid and esters thereof and method for the production thereof | Tomohiro Nakae, Kazuo Okochi, Masahiro Uemura, Sei Nakahara | 2003-07-29 |
| 6581637 | Tank and a method for storing an easily polymerizable compound | Kei Hamamoto, Takeshi Nishimura, Osamu Dodo | 2003-06-24 |
| 6568415 | Storing device for easily polymerizable and coagulating liquid substance and method for pressure control thereof | Kenji Nakahara, Takeshi Nishimura, Hiroo Iwato, Masakatsu Mori | 2003-05-27 |
| 6540881 | Method for refining (meth)acrylic acid | Kouji Ueno, Sei Nakahara, Masatoshi Ueoka | 2003-04-01 |
| 6476162 | Method for preventing easily polymerizing substance from polymerization and method for production of (meth) acrylic acid or ester thereof | Takeshi Nishimura, Kenji Sanada, Masakatsu Mori | 2002-11-05 |
| 6454541 | Method for transferring easily-polymerizable substance | Yuichi Ijiri, Takeshi Nishimura, Hiroo Iwato, Takashi Sera | 2002-09-24 |
| 6441228 | Apparatus and process for producing (meth)acrylic acid | Sei Nakahara, Yukihiro Matsumoto, Kenji Sanada, Masatoshi Ueoka | 2002-08-27 |
| 6414183 | Method for handling waste oil | Sei Nakahara, Masatoshi Ueoka | 2002-07-02 |