Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7749464 | Plate type catalytic reactor | Youji Kawatani, Teruo Saitou | 2010-07-06 |
| 7119227 | Process for catalytic vapor phase oxidation | Shuhei Yada, Kimikatsu Jinno, Hirochika Hosaka, Yoshiro Suzuki | 2006-10-10 |
| 7067696 | Process for producing (meth)acrolein or (meth)acrylic acid | Shuhei Yada, Hirochika Hosaka, Yasushi Ogawa, Yoshiro Suzuki | 2006-06-27 |
| 6968872 | Process for recovering liquid chemical products in chemical production facility | Shuhei Yada, Yasushi Ogawa, Yoshiro Suzuki | 2005-11-29 |
| 6448438 | Method for purifying acrylic acid | Shuhei Yada, Masahiko Yamagishi, Kouji Kasamatsu, Kiyoshi Takahashi | 2002-09-10 |
| 5910607 | Process for producing acrylic acid | Masahiko Yamagishi, Hirochika Hosaka | 1999-06-08 |
| 5546763 | Method of and apparatus for crystallization | Kazuo Kikuchi, Hiroshi Umino, Hiromitsu Shibuya, Masahito Makino, Kiyoshi Takahashi | 1996-08-20 |
| 5393429 | Liquid-liquid contactor | Takashi Nakayama, Hiroshi Umino, Kiyoshi Takahashi | 1995-02-28 |
| 5386052 | Process for producing acrylic or methacrylic esters | — | 1995-01-31 |
| 5048601 | Shell-and-tube apparatus having an intermediate tube plate | Katsunobu Yamaguchi, Tateo Kurihara, Isamu Yanai, Kazuo Kikuchi, Tomoo Saito +5 more | 1991-09-17 |
| 4625059 | Process for purification of 1,2-unsaturated carboxylic acids and/or esters thereof | Takeshi Shibano, Kiichi Ito, Kazuhiko Higuchi | 1986-11-25 |