Issued Patents 2002
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482981 | Method for producing acrylic acid | Kouji Ueno, Sei Nakahara | 2002-11-19 |
| 6469202 | Method for disposal of solid catalyst | Sei Nakahara, Takeshi Nishimura, Masahiro Motofuji | 2002-10-22 |
| 6458988 | Production process for hydroxyalkyl(meth)acrylate | Hajime Matsumoto, Tokumasa Ishida, Yasuhiro Shingai, Yukihiro Yoneda | 2002-10-01 |
| 6452040 | Production process for hydroxyalkyl (meth)acrylate | Yasuhiro Shingai, Sei Nakahara, Yukihiro Yoneda, Masakazu Asami | 2002-09-17 |
| 6441228 | Apparatus and process for producing (meth)acrylic acid | Sei Nakahara, Kazuhiko Sakamoto, Yukihiro Matsumoto, Kenji Sanada | 2002-08-27 |
| 6414183 | Method for handling waste oil | Kazuhiko Sakamoto, Sei Nakahara | 2002-07-02 |
| 6414182 | Production process for hydroxyalkyl ester | Yasuhiro Shingai, Tokumasa Ishida, Fumio Shibusawa, Tetsuya Kajihara, Yukihiro Yoneda +1 more | 2002-07-02 |
| 6384267 | Process for producing hydroxyalkyl (METH) acrylates | Yasuhiro Shingai, Junya Watanabe, Hirohisa Kubota | 2002-05-07 |
| 6380424 | Purification process for hydroxyalkyl (meth)acrylate | Yukihiro Yoneda, Fumio Shibusawa, Yasuhiro Shingai | 2002-04-30 |
| 6348135 | Process for the purification of (meth) acrylic acid and/or its ester | Sei Nakahara, Yukihiro Matsumoto | 2002-02-19 |